{"id":654,"date":"2026-01-13T07:39:00","date_gmt":"2026-01-13T07:39:00","guid":{"rendered":"https:\/\/roller-chain-manufacturers.com\/?post_type=product&p=654"},"modified":"2026-01-13T07:40:28","modified_gmt":"2026-01-13T07:40:28","slug":"sarja-lyhytjakoisia-tarkkuusrullaketjuja","status":"publish","type":"product","link":"https:\/\/roller-chain-manufacturers.com\/fi\/tuote\/sarja-lyhytjakoisia-tarkkuusrullaketjuja\/","title":{"rendered":"A-sarjan lyhyen nousun tarkkuusrullaketjut"},"content":{"rendered":"

A-sarjan lyhyen nousun tarkkuusrullaketjut<\/span><\/strong><\/p>\n

A-sarjan lyhytjakoisia tarkkuusrullaketjuja k\u00e4ytet\u00e4\u00e4n laajalti maatalous- ja kuljetinkoneissa. N\u00e4m\u00e4 ketjut on suunniteltu kest\u00e4m\u00e4\u00e4n eritt\u00e4in suuria kuormia. Ketjun lujuuden m\u00e4\u00e4ritt\u00e4miseksi sinun on tiedett\u00e4v\u00e4 sen vetolujuus. V\u00e4symislujuus on aivan yht\u00e4 t\u00e4rke\u00e4 kuin vetolujuus. V\u00e4symislujuus m\u00e4\u00e4r\u00e4ytyy useiden tekij\u00f6iden perusteella, mukaan lukien ter\u00e4styyppi, ketjun osien l\u00e4mp\u00f6k\u00e4sittely, jakorei\u00e4n valmistus ja kuulapuhalluksen intensiteetti.<\/p>\n

Yksinkertaiset rullaketjut ja holkkiketjut<\/strong><\/h2>\n

A-sarjan lyhytjakoisia tarkkuusrullaketjuja (APC) on saatavana useissa eri kokoisina. Jokainen ketju koostuu yhdest\u00e4 yhdist\u00e4v\u00e4st\u00e4 lenkist\u00e4 ja yhdest\u00e4 tai useammasta ep\u00e4keskisest\u00e4 lenkist\u00e4. Kaksijakoista ep\u00e4keskist\u00e4 lenkki\u00e4 suositellaan eritt\u00e4in hyvin nopeaan voimansiirtoon. N\u00e4it\u00e4 ketjuja on saatavana useista materiaaleista, kuten ter\u00e4ksest\u00e4 ja ruostumattomasta ter\u00e4ksest\u00e4.<\/p>\n

\"A-sarjan \"Yksinkertaiset<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
DIN\/ISO<\/strong><\/span>
\nKetjun nro<\/strong><\/span><\/td>\n		ANSI<\/strong><\/span>
\nKetjun nro<\/strong><\/span><\/td>\n		Piki<\/strong><\/span><\/td>\nRullan halkaisija<\/strong><\/span><\/td>\nSis\u00e4levyjen v\u00e4linen leveys<\/strong><\/span><\/td>\nTapin halkaisija<\/strong><\/span><\/td>\nTapin pituus<\/strong><\/span><\/td>\nSis\u00e4levyn syvyys<\/strong><\/span><\/td>\nLevyn paksuus<\/strong><\/span><\/td>\nLopullinen vetolujuus<\/strong><\/span><\/td>\nKeskim\u00e4\u00e4r\u00e4inen vetolujuus<\/strong><\/span><\/td>\nPaino metri\u00e4 kohden<\/strong><\/span><\/td>\n<\/tr>\n
P<\/strong><\/span><\/td>\nd1<\/sub> <\/strong><\/span>
\nmaks<\/strong><\/span><\/td>\n		b1<\/sub> <\/strong><\/span>
\nmin<\/strong><\/span><\/td>\n		d2<\/sub> <\/strong><\/span>
\nmaks<\/strong><\/span><\/td>\n		L<\/strong><\/span>
\nmaks<\/strong><\/span><\/td>\n		Lc-maksimi<\/strong><\/span><\/td>\nh2<\/sub> <\/strong><\/span>
\nmaks<\/strong><\/span><\/td>\n		T<\/strong><\/span>
\nmaks<\/strong><\/span><\/td>\n		Q<\/strong><\/span>
\nmin<\/strong><\/span><\/td>\n		Q0<\/sub><\/strong><\/span><\/td>\nq<\/strong><\/span><\/td>\n<\/tr>\n
mm<\/strong><\/span><\/td>\nmm<\/strong><\/span><\/td>\nmm<\/strong><\/span><\/td>\nmm<\/strong><\/span><\/td>\nmm<\/strong><\/span><\/td>\nmm<\/strong><\/span><\/td>\nmm<\/strong><\/span><\/td>\nmm<\/strong><\/span><\/td>\nkN\/lbf<\/strong><\/span><\/td>\nkN<\/strong><\/span><\/td>\nkg\/m\u00b2<\/strong><\/span><\/td>\n<\/tr>\n
*03C<\/span><\/td>\n*15<\/span><\/td>\n4.7625<\/span><\/td>\n2.48<\/span><\/td>\n2.38<\/span><\/td>\n1.62<\/span><\/td>\n6.10<\/span><\/td>\n6.90<\/span><\/td>\n4.30<\/span><\/td>\n0.60<\/span><\/td>\n1.80\/409<\/span><\/td>\n2.0<\/span><\/td>\n0.08<\/span><\/td>\n<\/tr>\n
*04C-1<\/span><\/td>\n*25<\/span><\/td>\n6.3500<\/span><\/td>\n3.30<\/span><\/td>\n3.18<\/span><\/td>\n2.31<\/span><\/td>\n7.90<\/span><\/td>\n8.40<\/span><\/td>\n6.00<\/span><\/td>\n0.80<\/span><\/td>\n3.50\/795<\/span><\/td>\n4.6<\/span><\/td>\n0.15<\/span><\/td>\n<\/tr>\n
*06C-1<\/span><\/td>\n*35<\/span><\/td>\n9.5250<\/span><\/td>\n5.08<\/span><\/td>\n4.77<\/span><\/td>\n3.58<\/span><\/td>\n12.40<\/span><\/td>\n13.17<\/span><\/td>\n9.00<\/span><\/td>\n1.30<\/span><\/td>\n7.90\/1795<\/span><\/td>\n10.8<\/span><\/td>\n0.33<\/span><\/td>\n<\/tr>\n
085-1<\/span><\/td>\n41<\/span><\/td>\n12.7000<\/span><\/td>\n7.77<\/span><\/td>\n6.25<\/span><\/td>\n3.58<\/span><\/td>\n13.75<\/span><\/td>\n15.00<\/span><\/td>\n9.91<\/span><\/td>\n1.30<\/span><\/td>\n6.67\/1516<\/span><\/td>\n12.6<\/span><\/td>\n0.41<\/span><\/td>\n<\/tr>\n
08A-1<\/span><\/td>\n40<\/span><\/td>\n12.7000<\/span><\/td>\n7.95<\/span><\/td>\n7.85<\/span><\/td>\n3.96<\/span><\/td>\n16.60<\/span><\/td>\n17.80<\/span><\/td>\n12.00<\/span><\/td>\n1.50<\/span><\/td>\n14.10\/3205<\/span><\/td>\n17.5<\/span><\/td>\n0.62<\/span><\/td>\n<\/tr>\n
10A-1<\/span><\/td>\n50<\/span><\/td>\n15.8750<\/span><\/td>\n10.16<\/span><\/td>\n9.40<\/span><\/td>\n5.08<\/span><\/td>\n20.70<\/span><\/td>\n22.20<\/span><\/td>\n15.09<\/span><\/td>\n2.03<\/span><\/td>\n22.20\/5045<\/span><\/td>\n29.4<\/span><\/td>\n1.02<\/span><\/td>\n<\/tr>\n
12A-1<\/span><\/td>\n60<\/span><\/td>\n19.0500<\/span><\/td>\n11.91<\/span><\/td>\n12.57<\/span><\/td>\n5.94<\/span><\/td>\n25.90<\/span><\/td>\n27.70<\/span><\/td>\n18.00<\/span><\/td>\n2.42<\/span><\/td>\n31.80\/7227<\/span><\/td>\n41.5<\/span><\/td>\n1.50<\/span><\/td>\n<\/tr>\n
16A-1<\/span><\/td>\n80<\/span><\/td>\n25.4000<\/span><\/td>\n15.88<\/span><\/td>\n15.75<\/span><\/td>\n7.92<\/span><\/td>\n32.70<\/span><\/td>\n35.00<\/span><\/td>\n24.00<\/span><\/td>\n3.25<\/span><\/td>\n56.70\/12886<\/span><\/td>\n69.4<\/span><\/td>\n2.60<\/span><\/td>\n<\/tr>\n
20A-1<\/span><\/td>\n100<\/span><\/td>\n31.7500<\/span><\/td>\n19.05<\/span><\/td>\n18.90<\/span><\/td>\n9.53<\/span><\/td>\n40.40<\/span><\/td>\n44.70<\/span><\/td>\n30.00<\/span><\/td>\n4.00<\/span><\/td>\n88.50\/20114<\/span><\/td>\n109.2<\/span><\/td>\n3.91<\/span><\/td>\n<\/tr>\n
24A-1<\/span><\/td>\n120<\/span><\/td>\n38.1000<\/span><\/td>\n22.23<\/span><\/td>\n25.22<\/span><\/td>\n11.10<\/span><\/td>\n50.30<\/span><\/td>\n54.30<\/span><\/td>\n35.70<\/span><\/td>\n4.80<\/span><\/td>\n127.00\/28864<\/span><\/td>\n156.3<\/span><\/td>\n5.62<\/span><\/td>\n<\/tr>\n
28A-1<\/span><\/td>\n140<\/span><\/td>\n44.4500<\/span><\/td>\n25.40<\/span><\/td>\n25.22<\/span><\/td>\n12.70<\/span><\/td>\n54.40<\/span><\/td>\n59.00<\/span><\/td>\n41.00<\/span><\/td>\n5.60<\/span><\/td>\n172.40\/39182<\/span><\/td>\n212.0<\/span><\/td>\n7.50<\/span><\/td>\n<\/tr>\n
32A-1<\/span><\/td>\n160<\/span><\/td>\n50.8000<\/span><\/td>\n28.58<\/span><\/td>\n31.55<\/span><\/td>\n14.27<\/span><\/td>\n64.80<\/span><\/td>\n69.60<\/span><\/td>\n47.80<\/span><\/td>\n6.40<\/span><\/td>\n226.80\/51545<\/span><\/td>\n278.9<\/span><\/td>\n10.10<\/span><\/td>\n<\/tr>\n
36A-1<\/span><\/td>\n180<\/span><\/td>\n57.1500<\/span><\/td>\n35.71<\/span><\/td>\n35.48<\/span><\/td>\n17.46<\/span><\/td>\n72.80<\/span><\/td>\n78.60<\/span><\/td>\n53.60<\/span><\/td>\n7.20<\/span><\/td>\n280.20\/63682<\/span><\/td>\n341.8<\/span><\/td>\n13.45<\/span><\/td>\n<\/tr>\n
40A-1<\/span><\/td>\n200<\/span><\/td>\n63.5000<\/span><\/td>\n39.68<\/span><\/td>\n37.85<\/span><\/td>\n19.85<\/span><\/td>\n80.30<\/span><\/td>\n87.20<\/span><\/td>\n60.00<\/span><\/td>\n8.00<\/span><\/td>\n353.80\/80409<\/span><\/td>\n431.6<\/span><\/td>\n16.15<\/span><\/td>\n<\/tr>\n
48A-1<\/span><\/td>\n240<\/span><\/td>\n76.2000<\/span><\/td>\n47.63<\/span><\/td>\n47.35<\/span><\/td>\n23.81<\/span><\/td>\n95.50<\/span><\/td>\n103.00<\/span><\/td>\n72.39<\/span><\/td>\n9.50<\/span><\/td>\n510.30\/115977<\/span><\/td>\n622.5<\/span><\/td>\n23.20<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

*Puslaketju: taulukon d1 osoittaa puslan ulkohalkaisijan.<\/p>\n

Duplex-rullaketjut ja holkkiketjut<\/strong><\/h2>\n

\"A-sarjan<\/p>\n

\"Duplex-rullaketjut<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
DIN\/ISO<\/strong><\/span>
\nKetjun nro<\/strong><\/span><\/td>\n		ANSI<\/strong><\/span>
\nKetjun nro<\/strong><\/span><\/td>\n		Piki<\/strong><\/span><\/td>\nRullan halkaisija<\/strong><\/span><\/td>\nSis\u00e4levyjen v\u00e4linen leveys<\/strong><\/span><\/td>\nTapin halkaisija<\/strong><\/span><\/td>\nTapin pituus<\/strong><\/span><\/td>\nSis\u00e4levyn syvyys<\/strong><\/span><\/td>\nLevyn paksuus<\/strong><\/span><\/td>\nPoikittainen nousu<\/strong><\/span><\/td>\nLopullinen vetolujuus<\/strong><\/span><\/td>\nKeskim\u00e4\u00e4r\u00e4inen vetolujuus<\/strong><\/span><\/td>\nPaino metri\u00e4 kohden<\/strong><\/span><\/td>\n<\/tr>\n
P<\/strong><\/span><\/td>\nd1<\/sub> <\/strong><\/span>
\nmaks<\/strong><\/span><\/td>\n		b1<\/sub> <\/strong><\/span>
\nmin<\/strong><\/span><\/td>\n		d2<\/sub> <\/strong><\/span>
\nmaks<\/strong><\/span><\/td>\n		L<\/strong><\/span>
\nmaks<\/strong><\/span><\/td>\n		Lc-maksimi<\/strong><\/span><\/td>\nh2<\/sub> <\/strong><\/span>
\nmaks<\/strong><\/span><\/td>\n		T<\/strong><\/span>
\nmaks<\/strong><\/span><\/td>\n		Pt<\/sub><\/strong><\/span><\/td>\nQ<\/strong><\/span>
\nmin<\/strong><\/span><\/td>\n		Q0<\/sub><\/strong><\/span><\/td>\nq<\/strong><\/span><\/td>\n<\/tr>\n
mm<\/strong><\/span><\/td>\nmm<\/strong><\/span><\/td>\nmm<\/strong><\/span><\/td>\nmm<\/strong><\/span><\/td>\nmm<\/strong><\/span><\/td>\nmm<\/strong><\/span><\/td>\nmm<\/strong><\/span><\/td>\nmm<\/strong><\/span><\/td>\nmm<\/strong><\/span><\/td>\nkN\/lbf<\/strong><\/span><\/td>\nkN<\/strong><\/span><\/td>\nkg\/m\u00b2<\/strong><\/span><\/td>\n<\/tr>\n
*04C-2<\/span><\/td>\n*25-2<\/span><\/td>\n6.350<\/span><\/td>\n3.30<\/span><\/td>\n3.18<\/span><\/td>\n2.31<\/span><\/td>\n14.5<\/span><\/td>\n15.0<\/span><\/td>\n6.00<\/span><\/td>\n0.80<\/span><\/td>\n6.40<\/span><\/td>\n7.00\/1591<\/span><\/td>\n8.6<\/span><\/td>\n0.28<\/span><\/td>\n<\/tr>\n
*06C-2<\/span><\/td>\n*35-2<\/span><\/td>\n9.525<\/span><\/td>\n5.08<\/span><\/td>\n4.77<\/span><\/td>\n3.58<\/span><\/td>\n22.5<\/span><\/td>\n23.3<\/span><\/td>\n9.00<\/span><\/td>\n1.30<\/span><\/td>\n10.13<\/span><\/td>\n15.80\/3591<\/span><\/td>\n19.7<\/span><\/td>\n0.63<\/span><\/td>\n<\/tr>\n
085-2<\/span><\/td>\n41-2<\/span><\/td>\n12.700<\/span><\/td>\n7.77<\/span><\/td>\n6.25<\/span><\/td>\n3.58<\/span><\/td>\n25.7<\/span><\/td>\n26.9<\/span><\/td>\n9.91<\/span><\/td>\n1.30<\/span><\/td>\n11.95<\/span><\/td>\n13.34\/3032<\/span><\/td>\n16.9<\/span><\/td>\n0.81<\/span><\/td>\n<\/tr>\n
08A-2<\/span><\/td>\n40-2<\/span><\/td>\n12.700<\/span><\/td>\n7.95<\/span><\/td>\n7.85<\/span><\/td>\n3.96<\/span><\/td>\n31.0<\/span><\/td>\n32.2<\/span><\/td>\n12.00<\/span><\/td>\n1.50<\/span><\/td>\n14.38<\/span><\/td>\n28.20\/6409<\/span><\/td>\n35.9<\/span><\/td>\n1.12<\/span><\/td>\n<\/tr>\n
10A-2<\/span><\/td>\n50-2<\/span><\/td>\n15.875<\/span><\/td>\n10.16<\/span><\/td>\n9.40<\/span><\/td>\n5.08<\/span><\/td>\n38.9<\/span><\/td>\n40.4<\/span><\/td>\n15.09<\/span><\/td>\n2.03<\/span><\/td>\n18.11<\/span><\/td>\n44.40\/10091<\/span><\/td>\n58.1<\/span><\/td>\n2.00<\/span><\/td>\n<\/tr>\n
12A-2<\/span><\/td>\n60-2<\/span><\/td>\n19.050<\/span><\/td>\n11.91<\/span><\/td>\n12.57<\/span><\/td>\n5.94<\/span><\/td>\n48.8<\/span><\/td>\n50.5<\/span><\/td>\n18.00<\/span><\/td>\n2.42<\/span><\/td>\n22.78<\/span><\/td>\n63.60\/14455<\/span><\/td>\n82.1<\/span><\/td>\n2.92<\/span><\/td>\n<\/tr>\n
16A-2<\/span><\/td>\n80-2<\/span><\/td>\n25.400<\/span><\/td>\n15.88<\/span><\/td>\n15.75<\/span><\/td>\n7.92<\/span><\/td>\n62.7<\/span><\/td>\n64.3<\/span><\/td>\n24.00<\/span><\/td>\n3.25<\/span><\/td>\n29.29<\/span><\/td>\n113.40\/25773<\/span><\/td>\n141.8<\/span><\/td>\n5.15<\/span><\/td>\n<\/tr>\n
20A-2<\/span><\/td>\n100-2<\/span><\/td>\n31.750<\/span><\/td>\n19.05<\/span><\/td>\n18.90<\/span><\/td>\n9.53<\/span><\/td>\n76.4<\/span><\/td>\n80.5<\/span><\/td>\n30.00<\/span><\/td>\n4.00<\/span><\/td>\n35.76<\/span><\/td>\n177.00\/40227<\/span><\/td>\n219.4<\/span><\/td>\n7.80<\/span><\/td>\n<\/tr>\n
24A-2<\/span><\/td>\n120-2<\/span><\/td>\n38.100<\/span><\/td>\n22.23<\/span><\/td>\n25.22<\/span><\/td>\n11.10<\/span><\/td>\n95.8<\/span><\/td>\n99.7<\/span><\/td>\n35.70<\/span><\/td>\n4.80<\/span><\/td>\n45.44<\/span><\/td>\n254.00\/57727<\/span><\/td>\n314.9<\/span><\/td>\n11.70<\/span><\/td>\n<\/tr>\n
28A-2<\/span><\/td>\n140-2<\/span><\/td>\n44.450<\/span><\/td>\n25.40<\/span><\/td>\n25.22<\/span><\/td>\n12.70<\/span><\/td>\n103.3<\/span><\/td>\n107.9<\/span><\/td>\n41.00<\/span><\/td>\n5.60<\/span><\/td>\n48.87<\/span><\/td>\n344.80\/78364<\/span><\/td>\n427.5<\/span><\/td>\n15.14<\/span><\/td>\n<\/tr>\n
32A-2<\/span><\/td>\n160-2<\/span><\/td>\n50.800<\/span><\/td>\n28.58<\/span><\/td>\n31.55<\/span><\/td>\n14.27<\/span><\/td>\n123.3<\/span><\/td>\n128.1<\/span><\/td>\n47.80<\/span><\/td>\n6.40<\/span><\/td>\n58.55<\/span><\/td>\n453.60\/103091<\/span><\/td>\n562.4<\/span><\/td>\n20.14<\/span><\/td>\n<\/tr>\n
36A-2<\/span><\/td>\n180-2<\/span><\/td>\n57.150<\/span><\/td>\n35.71<\/span><\/td>\n35.48<\/span><\/td>\n17.46<\/span><\/td>\n138.6<\/span><\/td>\n144.4<\/span><\/td>\n53.60<\/span><\/td>\n7.20<\/span><\/td>\n65.84<\/span><\/td>\n560.50\/127386<\/span><\/td>\n695.0<\/span><\/td>\n29.22<\/span><\/td>\n<\/tr>\n
40A-2<\/span><\/td>\n200-2<\/span><\/td>\n63.500<\/span><\/td>\n39.68<\/span><\/td>\n37.85<\/span><\/td>\n19.85<\/span><\/td>\n151.9<\/span><\/td>\n158.8<\/span><\/td>\n60.00<\/span><\/td>\n8.00<\/span><\/td>\n71.55<\/span><\/td>\n707.60\/160818<\/span><\/td>\n877.4<\/span><\/td>\n32.24<\/span><\/td>\n<\/tr>\n
48A-2<\/span><\/td>\n240-2<\/span><\/td>\n76.200<\/span><\/td>\n47.63<\/span><\/td>\n47.35<\/span><\/td>\n23.81<\/span><\/td>\n183.4<\/span><\/td>\n190.8<\/span><\/td>\n72.39<\/span><\/td>\n9.50<\/span><\/td>\n87.83<\/span><\/td>\n1020.60\/213955<\/span><\/td>\n1255.3<\/span><\/td>\n45.23<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

*Puslaketju: taulukon d1 osoittaa puslan ulkohalkaisijan.<\/p>\n

Triplex-rullaketjut ja puslaketjut<\/strong><\/h2>\n

\"Triplex-rullaketjut<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
DIN\/ISO<\/strong><\/span>
\nKetjun nro<\/strong><\/span><\/td>\n		ANSI<\/strong><\/span>
\nKetjun nro<\/strong><\/span><\/td>\n		Piki<\/strong><\/span><\/td>\nRullan halkaisija<\/strong><\/span><\/td>\nSis\u00e4levyjen v\u00e4linen leveys<\/strong><\/span><\/td>\nTapin halkaisija<\/strong><\/span><\/td>\nTapin pituus<\/strong><\/span><\/td>\nSis\u00e4levyn syvyys<\/strong><\/span><\/td>\nLevyn paksuus<\/strong><\/span><\/td>\nPoikittainen nousu<\/strong><\/span><\/td>\nLopullinen vetolujuus<\/strong><\/span><\/td>\nKeskim\u00e4\u00e4r\u00e4inen vetolujuus<\/strong><\/span><\/td>\nPaino metri\u00e4 kohden<\/strong><\/span><\/td>\n<\/tr>\n
P<\/strong><\/span><\/td>\nd1
\n<\/sub>maks<\/strong><\/span><\/td>\n		b1
\n<\/sub>min<\/strong><\/span><\/td>\n		d2
\n<\/sub>maks<\/strong><\/span><\/td>\n		L<\/strong><\/span>
\nmaks<\/strong><\/span><\/td>\n		Lc-maksimi<\/strong><\/span><\/td>\nh2
\n<\/sub>maks<\/strong><\/span><\/td>\n		T<\/strong><\/span>
\nmaks<\/strong><\/span><\/td>\n		Pt<\/strong><\/span><\/td>\nQ<\/strong><\/span>
\nmin<\/strong><\/span><\/td>\n		Q0<\/sub><\/strong><\/span><\/td>\nq<\/strong><\/span><\/td>\n<\/tr>\n
mm<\/strong><\/span><\/td>\nmm<\/strong><\/span><\/td>\nmm<\/strong><\/span><\/td>\nmm<\/strong><\/span><\/td>\nmm<\/strong><\/span><\/td>\nmm<\/strong><\/span><\/td>\nmm<\/strong><\/span><\/td>\nmm<\/strong><\/span><\/td>\nmm<\/strong><\/span><\/td>\nkN\/lbf<\/strong><\/span><\/td>\nkN<\/strong><\/span><\/td>\nkg\/m\u00b2<\/strong><\/span><\/td>\n<\/tr>\n
*04C-3<\/span><\/td>\n*25-3<\/span><\/td>\n6.350<\/span><\/td>\n3.30<\/span><\/td>\n3.18<\/span><\/td>\n2.31<\/span><\/td>\n21.0<\/span><\/td>\n21.5<\/span><\/td>\n6.00<\/span><\/td>\n0.80<\/span><\/td>\n6.40<\/span><\/td>\n10.5\/2386<\/span><\/td>\n12.6<\/span><\/td>\n0.44<\/span><\/td>\n<\/tr>\n
*06C-3<\/span><\/td>\n*35-3<\/span><\/td>\n9.525<\/span><\/td>\n5.08<\/span><\/td>\n4.77<\/span><\/td>\n3.58<\/span><\/td>\n32.7<\/span><\/td>\n33.5<\/span><\/td>\n9.00<\/span><\/td>\n1.30<\/span><\/td>\n10.13<\/span><\/td>\n23.7\/5386<\/span><\/td>\n28.6<\/span><\/td>\n1.05<\/span><\/td>\n<\/tr>\n
08A-3<\/span><\/td>\n40-3<\/span><\/td>\n12.700<\/span><\/td>\n7.95<\/span><\/td>\n7.85<\/span><\/td>\n3.96<\/span><\/td>\n45.4<\/span><\/td>\n46.6<\/span><\/td>\n12.00<\/span><\/td>\n1.50<\/span><\/td>\n14.38<\/span><\/td>\n42.3\/9614<\/span><\/td>\n50.0<\/span><\/td>\n1.90<\/span><\/td>\n<\/tr>\n
10A-3<\/span><\/td>\n50-3<\/span><\/td>\n15.875<\/span><\/td>\n10.16<\/span><\/td>\n9.40<\/span><\/td>\n5.08<\/span><\/td>\n57.0<\/span><\/td>\n58.5<\/span><\/td>\n15.09<\/span><\/td>\n2.03<\/span><\/td>\n18.11<\/span><\/td>\n66.6\/15136<\/span><\/td>\n77.8<\/span><\/td>\n3.09<\/span><\/td>\n<\/tr>\n
12A-3<\/span><\/td>\n60-3<\/span><\/td>\n19.050<\/span><\/td>\n11.91<\/span><\/td>\n12.57<\/span><\/td>\n5.94<\/span><\/td>\n71.5<\/span><\/td>\n73.3<\/span><\/td>\n18.00<\/span><\/td>\n2.42<\/span><\/td>\n22.78<\/span><\/td>\n95.4\/21682<\/span><\/td>\n111.1<\/span><\/td>\n4.54<\/span><\/td>\n<\/tr>\n
16A-3<\/span><\/td>\n80-3<\/span><\/td>\n25.400<\/span><\/td>\n15.88<\/span><\/td>\n15.75<\/span><\/td>\n7.92<\/span><\/td>\n91.7<\/span><\/td>\n93.6<\/span><\/td>\n24.00<\/span><\/td>\n3.25<\/span><\/td>\n29.29<\/span><\/td>\n170.1\/38659<\/span><\/td>\n198.4<\/span><\/td>\n7.89<\/span><\/td>\n<\/tr>\n
20A-3<\/span><\/td>\n100-3<\/span><\/td>\n31.750<\/span><\/td>\n19.05<\/span><\/td>\n18.90<\/span><\/td>\n9.53<\/span><\/td>\n112.2<\/span><\/td>\n116.3<\/span><\/td>\n30.00<\/span><\/td>\n4.00<\/span><\/td>\n35.76<\/span><\/td>\n265.5\/60341<\/span><\/td>\n309.6<\/span><\/td>\n11.77<\/span><\/td>\n<\/tr>\n
24A-3<\/span><\/td>\n120-3<\/span><\/td>\n38.100<\/span><\/td>\n22.23<\/span><\/td>\n25.22<\/span><\/td>\n11.10<\/span><\/td>\n141.4<\/span><\/td>\n145.2<\/span><\/td>\n35.70<\/span><\/td>\n4.80<\/span><\/td>\n45.44<\/span><\/td>\n381.0\/86591<\/span><\/td>\n437.2<\/span><\/td>\n17.53<\/span><\/td>\n<\/tr>\n
28A-3<\/span><\/td>\n140-3<\/span><\/td>\n44.450<\/span><\/td>\n25.40<\/span><\/td>\n25.22<\/span><\/td>\n12.70<\/span><\/td>\n152.2<\/span><\/td>\n156.8<\/span><\/td>\n41.00<\/span><\/td>\n5.60<\/span><\/td>\n48.87<\/span><\/td>\n517.2\/117545<\/span><\/td>\n593.3<\/span><\/td>\n22.20<\/span><\/td>\n<\/tr>\n
32A-3<\/span><\/td>\n160-3<\/span><\/td>\n50.800<\/span><\/td>\n28.58<\/span><\/td>\n31.55<\/span><\/td>\n14.27<\/span><\/td>\n181.8<\/span><\/td>\n186.6<\/span><\/td>\n47.80<\/span><\/td>\n6.40<\/span><\/td>\n58.55<\/span><\/td>\n680.4\/154636<\/span><\/td>\n780.6<\/span><\/td>\n30.02<\/span><\/td>\n<\/tr>\n
36A-3<\/span><\/td>\n180-3<\/span><\/td>\n57.150<\/span><\/td>\n35.71<\/span><\/td>\n35.48<\/span><\/td>\n17.46<\/span><\/td>\n204.4<\/span><\/td>\n210.2<\/span><\/td>\n53.60<\/span><\/td>\n7.20<\/span><\/td>\n65.84<\/span><\/td>\n840.7\/191068<\/span><\/td>\n983.6<\/span><\/td>\n38.22<\/span><\/td>\n<\/tr>\n
40A-3<\/span><\/td>\n200-3<\/span><\/td>\n63.500<\/span><\/td>\n39.68<\/span><\/td>\n37.85<\/span><\/td>\n19.85<\/span><\/td>\n223.5<\/span><\/td>\n230.4<\/span><\/td>\n60.00<\/span><\/td>\n8.00<\/span><\/td>\n71.55<\/span><\/td>\n1061.4\/241227<\/span><\/td>\n1217.8<\/span><\/td>\n49.03<\/span><\/td>\n<\/tr>\n
48A-3<\/span><\/td>\n240-3<\/span><\/td>\n76.200<\/span><\/td>\n47.63<\/span><\/td>\n47.35<\/span><\/td>\n23.81<\/span><\/td>\n271.3<\/span><\/td>\n278.6<\/span><\/td>\n72.39<\/span><\/td>\n9.50<\/span><\/td>\n87.83<\/span><\/td>\n1530.9\/347932<\/span><\/td>\n1756.5<\/span><\/td>\n71.60<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

*Puslaketju: taulukon d1 osoittaa puslan ulkohalkaisijan.<\/p>\n

Monis\u00e4ikeiset rullaketjut<\/strong><\/h2>\n

\"Monis\u00e4ikeiset<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
EP<\/span><\/strong>
\nKetjun nro<\/span><\/strong><\/td>\n		ANSI<\/span><\/strong>
\nKetjun nro<\/span><\/strong><\/td>\n		Piki<\/span><\/strong><\/td>\nRullan halkaisija<\/span><\/strong><\/td>\nSis\u00e4levyjen v\u00e4linen leveys<\/span><\/strong><\/td>\nTapin halkaisija<\/span><\/strong><\/td>\nTapin pituus<\/span><\/strong><\/td>\nSis\u00e4levyn syvyys<\/span><\/strong><\/td>\nLevyn paksuus<\/span><\/strong><\/td>\nPoikittainen nousu<\/span><\/strong><\/td>\nLopullinen vetolujuus<\/span><\/strong><\/td>\nKeskim\u00e4\u00e4r\u00e4inen vetolujuus<\/span><\/strong><\/td>\nPaino metri\u00e4 kohden<\/span><\/strong><\/td>\n<\/tr>\n
P<\/span><\/strong><\/td>\nd1
\n<\/sub>maks<\/span><\/strong><\/td>\n		b1
\n<\/sub>min<\/span><\/strong><\/td>\n		d2
\n<\/sub>maks<\/span><\/strong><\/td>\n		L<\/span><\/strong>
\nmaks<\/span><\/strong><\/td>\n		Lc-maksimi<\/span><\/strong><\/td>\nh2
\n<\/sub>maks<\/span><\/strong><\/td>\n		T<\/span><\/strong>
\nmaks<\/span><\/strong><\/td>\n		Pt<\/span><\/strong><\/td>\nQ<\/span><\/strong>
\nmin<\/span><\/strong><\/td>\n		Q0<\/sub><\/span><\/strong><\/td>\nq<\/span><\/strong><\/td>\n<\/tr>\n
mm<\/span><\/strong><\/td>\nmm<\/span><\/strong><\/td>\nmm<\/span><\/strong><\/td>\nmm<\/span><\/strong><\/td>\nmm<\/span><\/strong><\/td>\nmm<\/span><\/strong><\/td>\nmm<\/span><\/strong><\/td>\nmm<\/span><\/strong><\/td>\nmm<\/span><\/strong><\/td>\nkN\/lbf<\/span><\/strong><\/td>\nkN<\/span><\/strong><\/td>\nkg\/m\u00b2<\/span><\/strong><\/td>\n<\/tr>\n
08A-4<\/span><\/td>\n40-4<\/span><\/td>\n12.700<\/span><\/td>\n7.95<\/span><\/td>\n7.85<\/span><\/td>\n3.96<\/span><\/td>\n59.8<\/span><\/td>\n61.0<\/span><\/td>\n12.00<\/span><\/td>\n1.50<\/span><\/td>\n14.38<\/span><\/td>\n56.4\/12687<\/span><\/td>\n62.04<\/span><\/td>\n2.57<\/span><\/td>\n<\/tr>\n
10A-4<\/span><\/td>\n50-4<\/span><\/td>\n15.875<\/span><\/td>\n10.16<\/span><\/td>\n9.40<\/span><\/td>\n5.08<\/span><\/td>\n75.1<\/span><\/td>\n76.6<\/span><\/td>\n15.09<\/span><\/td>\n2.03<\/span><\/td>\n18.11<\/span><\/td>\n88.8\/19976<\/span><\/td>\n97.68<\/span><\/td>\n4.30<\/span><\/td>\n<\/tr>\n
12A-4<\/span><\/td>\n60-4<\/span><\/td>\n19.050<\/span><\/td>\n11.91<\/span><\/td>\n12.57<\/span><\/td>\n5.94<\/span><\/td>\n94.4<\/span><\/td>\n96.1<\/span><\/td>\n18.00<\/span><\/td>\n2.42<\/span><\/td>\n22.78<\/span><\/td>\n127.2\/28614<\/span><\/td>\n139.92<\/span><\/td>\n6.21<\/span><\/td>\n<\/tr>\n
16A-4<\/span><\/td>\n80-4<\/span><\/td>\n25.400<\/span><\/td>\n15.88<\/span><\/td>\n15.75<\/span><\/td>\n7.92<\/span><\/td>\n121.0<\/span><\/td>\n124.4<\/span><\/td>\n24.00<\/span><\/td>\n3.25<\/span><\/td>\n29.29<\/span><\/td>\n226.8\/51020<\/span><\/td>\n249.48<\/span><\/td>\n10.37<\/span><\/td>\n<\/tr>\n
20A-4<\/span><\/td>\n100-4<\/span><\/td>\n31.750<\/span><\/td>\n19.05<\/span><\/td>\n18.90<\/span><\/td>\n9.53<\/span><\/td>\n147.8<\/span><\/td>\n152.1<\/span><\/td>\n30.00<\/span><\/td>\n4.00<\/span><\/td>\n35.76<\/span><\/td>\n354\/79635<\/span><\/td>\n389.40<\/span><\/td>\n15.60<\/span><\/td>\n<\/tr>\n
24A-4<\/span><\/td>\n120-4<\/span><\/td>\n38.100<\/span><\/td>\n22.23<\/span><\/td>\n25.22<\/span><\/td>\n11.10<\/span><\/td>\n187.0<\/span><\/td>\n190.8<\/span><\/td>\n35.70<\/span><\/td>\n4.80<\/span><\/td>\n45.44<\/span><\/td>\n508\/114278<\/span><\/td>\n558.80<\/span><\/td>\n23.56<\/span><\/td>\n<\/tr>\n
08A-5<\/span><\/td>\n40-5<\/span><\/td>\n12.700<\/span><\/td>\n7.95<\/span><\/td>\n7.85<\/span><\/td>\n3.96<\/span><\/td>\n74.2<\/span><\/td>\n75.4<\/span><\/td>\n12.00<\/span><\/td>\n1.50<\/span><\/td>\n14.38<\/span><\/td>\n70.5\/15859<\/span><\/td>\n77.55<\/span><\/td>\n3.19<\/span><\/td>\n<\/tr>\n
10A-5<\/span><\/td>\n50-5<\/span><\/td>\n15.875<\/span><\/td>\n10.16<\/span><\/td>\n9.40<\/span><\/td>\n5.08<\/span><\/td>\n93.2<\/span><\/td>\n94.7<\/span><\/td>\n15.09<\/span><\/td>\n2.03<\/span><\/td>\n18.11<\/span><\/td>\n111\/24970<\/span><\/td>\n122.10<\/span><\/td>\n5.37<\/span><\/td>\n<\/tr>\n
12A-5<\/span><\/td>\n60-5<\/span><\/td>\n19.050<\/span><\/td>\n11.91<\/span><\/td>\n12.57<\/span><\/td>\n5.94<\/span><\/td>\n117.0<\/span><\/td>\n118.8<\/span><\/td>\n18.00<\/span><\/td>\n2.42<\/span><\/td>\n22.78<\/span><\/td>\n159\/35768<\/span><\/td>\n174.90<\/span><\/td>\n7.75<\/span><\/td>\n<\/tr>\n
16A-5<\/span><\/td>\n80-5<\/span><\/td>\n25.400<\/span><\/td>\n15.88<\/span><\/td>\n15.75<\/span><\/td>\n7.92<\/span><\/td>\n149.9<\/span><\/td>\n153.7<\/span><\/td>\n24.00<\/span><\/td>\n3.25<\/span><\/td>\n29.29<\/span><\/td>\n283.5\/63775<\/span><\/td>\n311.85<\/span><\/td>\n12.96<\/span><\/td>\n<\/tr>\n
20A-5<\/span><\/td>\n100-5<\/span><\/td>\n31.750<\/span><\/td>\n19.05<\/span><\/td>\n18.90<\/span><\/td>\n9.53<\/span><\/td>\n183.6<\/span><\/td>\n187.9<\/span><\/td>\n30.00<\/span><\/td>\n4.00<\/span><\/td>\n35.76<\/span><\/td>\n442.5\/99543<\/span><\/td>\n486.75<\/span><\/td>\n19.46<\/span><\/td>\n<\/tr>\n
24A-5<\/span><\/td>\n120-5<\/span><\/td>\n38.100<\/span><\/td>\n22.23<\/span><\/td>\n25.22<\/span><\/td>\n11.10<\/span><\/td>\n232.3<\/span><\/td>\n236.1<\/span><\/td>\n35.70<\/span><\/td>\n4.80<\/span><\/td>\n45.44<\/span><\/td>\n635\/142848<\/span><\/td>\n698.50<\/span><\/td>\n29.40<\/span><\/td>\n<\/tr>\n
08A-6<\/span><\/td>\n40-6<\/span><\/td>\n12.700<\/span><\/td>\n7.95<\/span><\/td>\n7.85<\/span><\/td>\n3.96<\/span><\/td>\n88.5<\/span><\/td>\n89.8<\/span><\/td>\n12.00<\/span><\/td>\n1.50<\/span><\/td>\n14.38<\/span><\/td>\n84.6\/19031<\/span><\/td>\n93.06<\/span><\/td>\n3.83<\/span><\/td>\n<\/tr>\n
10A-6<\/span><\/td>\n50-6<\/span><\/td>\n15.875<\/span><\/td>\n10.16<\/span><\/td>\n9.40<\/span><\/td>\n5.08<\/span><\/td>\n111.3<\/span><\/td>\n112.8<\/span><\/td>\n15.09<\/span><\/td>\n2.03<\/span><\/td>\n18.11<\/span><\/td>\n133.2\/29964<\/span><\/td>\n146.52<\/span><\/td>\n6.43<\/span><\/td>\n<\/tr>\n
12A-6<\/span><\/td>\n60-6<\/span><\/td>\n19.050<\/span><\/td>\n11.91<\/span><\/td>\n12.57<\/span><\/td>\n5.94<\/span><\/td>\n139.8<\/span><\/td>\n141.8<\/span><\/td>\n18.00<\/span><\/td>\n2.42<\/span><\/td>\n22.78<\/span><\/td>\n190.8\/42921<\/span><\/td>\n209.80<\/span><\/td>\n9.31<\/span><\/td>\n<\/tr>\n
16A-6<\/span><\/td>\n80-6<\/span><\/td>\n25.400<\/span><\/td>\n15.88<\/span><\/td>\n15.75<\/span><\/td>\n7.92<\/span><\/td>\n179.2<\/span><\/td>\n183.0<\/span><\/td>\n24.00<\/span><\/td>\n3.25<\/span><\/td>\n29.29<\/span><\/td>\n340.2\/76530<\/span><\/td>\n374.22<\/span><\/td>\n15.50<\/span><\/td>\n<\/tr>\n
20A-6<\/span><\/td>\n100-6<\/span><\/td>\n31.750<\/span><\/td>\n19.05<\/span><\/td>\n18.90<\/span><\/td>\n9.53<\/span><\/td>\n219.4<\/span><\/td>\n223.7<\/span><\/td>\n30.00<\/span><\/td>\n4.00<\/span><\/td>\n35.76<\/span><\/td>\n531\/119452<\/span><\/td>\n584.10<\/span><\/td>\n23.36<\/span><\/td>\n<\/tr>\n
24A-6<\/span><\/td>\n120-6<\/span><\/td>\n38.100<\/span><\/td>\n22.23<\/span><\/td>\n25.22<\/span><\/td>\n11.10<\/span><\/td>\n278.0<\/span><\/td>\n282.0<\/span><\/td>\n35.70<\/span><\/td>\n4.80<\/span><\/td>\n45.44<\/span><\/td>\n762\/171417<\/span><\/td>\n838.20<\/span><\/td>\n35.30<\/span><\/td>\n<\/tr>\n
08A-8<\/span><\/td>\n40-8<\/span><\/td>\n12.700<\/span><\/td>\n7.95<\/span><\/td>\n7.85<\/span><\/td>\n3.96<\/span><\/td>\n117.3<\/span><\/td>\n118.5<\/span><\/td>\n12.00<\/span><\/td>\n1.50<\/span><\/td>\n14.38<\/span><\/td>\n112.8\/25375<\/span><\/td>\n124.08<\/span><\/td>\n5.11<\/span><\/td>\n<\/tr>\n
10A-8<\/span><\/td>\n50-8<\/span><\/td>\n15.875<\/span><\/td>\n10.16<\/span><\/td>\n9.40<\/span><\/td>\n5.08<\/span><\/td>\n147.5<\/span><\/td>\n149.0<\/span><\/td>\n15.09<\/span><\/td>\n2.03<\/span><\/td>\n18.11<\/span><\/td>\n177.6\/39952<\/span><\/td>\n195.36<\/span><\/td>\n8.59<\/span><\/td>\n<\/tr>\n
12A-8<\/span><\/td>\n60-8<\/span><\/td>\n19.050<\/span><\/td>\n11.91<\/span><\/td>\n12.57<\/span><\/td>\n5.94<\/span><\/td>\n185.8<\/span><\/td>\n187.6<\/span><\/td>\n18.00<\/span><\/td>\n2.42<\/span><\/td>\n22.78<\/span><\/td>\n254.4\/57229<\/span><\/td>\n279.84<\/span><\/td>\n12.37<\/span><\/td>\n<\/tr>\n
16A-8<\/span><\/td>\n80-8<\/span><\/td>\n25.400<\/span><\/td>\n15.88<\/span><\/td>\n15.75<\/span><\/td>\n7.92<\/span><\/td>\n237.8<\/span><\/td>\n241.6<\/span><\/td>\n24.00<\/span><\/td>\n3.25<\/span><\/td>\n29.29<\/span><\/td>\n453.6\/102040<\/span><\/td>\n498.96<\/span><\/td>\n20.67<\/span><\/td>\n<\/tr>\n
20A-8<\/span><\/td>\n100-8<\/span><\/td>\n31.750<\/span><\/td>\n19.05<\/span><\/td>\n18.90<\/span><\/td>\n9.53<\/span><\/td>\n290.8<\/span><\/td>\n295.1<\/span><\/td>\n30.00<\/span><\/td>\n4.00<\/span><\/td>\n35.76<\/span><\/td>\n708\/159270<\/span><\/td>\n778.80<\/span><\/td>\n31.14<\/span><\/td>\n<\/tr>\n
24A-8<\/span><\/td>\n120-8<\/span><\/td>\n38.100<\/span><\/td>\n22.23<\/span><\/td>\n25.22<\/span><\/td>\n11.10<\/span><\/td>\n368.8<\/span><\/td>\n372.8<\/span><\/td>\n35.70<\/span><\/td>\n4.80<\/span><\/td>\n45.44<\/span><\/td>\n1016\/228557<\/span><\/td>\n1176<\/span><\/td>\n47.07<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

A-sarjan lyhyen nousun tarkkuusrullaketjujen edut<\/strong><\/h2>\n

Niill\u00e4 on vetolujuutta.<\/h3>\n

A-sarjan lyhyen jaon tarkkuusrullaketjut t\u00e4ytt\u00e4v\u00e4t ISO 9633 -standardin vetolujuuden osalta. Niiden vetolujuus on 7 kN\/cm2. Niit\u00e4 k\u00e4ytet\u00e4\u00e4n mekaanisessa voimansiirrossa, siihen liittyviss\u00e4 sovelluksissa ja k\u00e4\u00e4nt\u00f6ketjujen valmistuksessa. N\u00e4it\u00e4 ketjuja on saatavana yksi-, kaksi- ja monirivisin\u00e4 kokoonpanoina koosta ja jaosta riippuen. Ty\u00f6ymp\u00e4rist\u00f6st\u00e4 riippuen niit\u00e4 on saatavana eri pinnoitteilla ja pituuksilla.<\/p>\n

A-sarjan lyhyen jaon tarkkuusrullaketjut valmistetaan ter\u00e4ksest\u00e4 tai ruostumattomasta ter\u00e4ksest\u00e4. Ter\u00e4sketjun v\u00e4himm\u00e4ismurtolujuus on 12500 x (jako, tuumaa). Joissakin ketjuissa on X-rengas- tai O-rengasrakenne, joka v\u00e4hent\u00e4\u00e4 huomattavasti kulumista. Niiss\u00e4 on my\u00f6s sis\u00e4isi\u00e4 voiteluaineita, jotka lis\u00e4t\u00e4\u00e4n tyhji\u00f6n avulla ketjuja niitattaessa. Kaikki n\u00e4m\u00e4 ominaisuudet pident\u00e4v\u00e4t ketjun k\u00e4ytt\u00f6ik\u00e4\u00e4, mik\u00e4 tekee siit\u00e4 ihanteellisen monenlaisiin k\u00e4ytt\u00f6tarkoituksiin.<\/p>\n

Niiden v\u00e4symislujuus on 1\/9 ketjun vetolujuudesta.<\/h3>\n

Yleens\u00e4 rullaketjut mitataan niiden vetolujuuden mukaan, joka on suurin kuormituskyky ennen murtumista. V\u00e4symislujuus on kuitenkin yht\u00e4 t\u00e4rke\u00e4. V\u00e4symislujuus m\u00e4\u00e4ritell\u00e4\u00e4n kuormitukseksi, jota rullaketju ei pysty kest\u00e4m\u00e4\u00e4n pitk\u00e4\u00e4n aikaan. N\u00e4iden kahden t\u00e4rkein ero on se, ett\u00e4 vetolujuus mittaa ketjun kapasiteettia vain kerran, kun taas v\u00e4symislujuus heijastaa kuormituskyky\u00e4 ajan kuluessa.<\/p>\n

A-sarjan lyhytjakoisen tarkkuusrullaketjun vetolujuus on v\u00e4hint\u00e4\u00e4n 12 500 x jako tuumina, ja t\u00e4m\u00e4 luku edustaa ketjun v\u00e4himm\u00e4ismurtolujuutta. X- tai O-rengashampailla varustetut ketjut v\u00e4hent\u00e4v\u00e4t huomattavasti kulumista ja ovat kest\u00e4v\u00e4mpi\u00e4 kuin ilman niit\u00e4 olevat. Ketjuun johdetaan sis\u00e4isi\u00e4 voiteluaineita niittauksen aikana.<\/p>\n

Ketjut ja rattaat<\/strong><\/h2>\n