{"id":692,"date":"2026-01-14T01:04:10","date_gmt":"2026-01-14T01:04:10","guid":{"rendered":"https:\/\/roller-chain-manufacturers.com\/?post_type=product&p=692"},"modified":"2026-08-26T05:27:09","modified_gmt":"2026-08-26T05:27:09","slug":"12a-g1-%e3%83%a9%e3%83%90%e3%83%bc%e3%83%88%e3%83%83%e3%83%97%e3%83%ad%e3%83%bc%e3%83%a9%e3%83%bc%e3%83%81%e3%82%a7%e3%83%bc%e3%83%b3","status":"publish","type":"product","link":"https:\/\/roller-chain-manufacturers.com\/ja\/product\/12a-g1-%e3%83%a9%e3%83%90%e3%83%bc%e3%83%88%e3%83%83%e3%83%97%e3%83%ad%e3%83%bc%e3%83%a9%e3%83%bc%e3%83%81%e3%82%a7%e3%83%bc%e3%83%b3\/","title":{"rendered":"12A-G1 \u30e9\u30d0\u30fc\u30c8\u30c3\u30d7\u30ed\u30fc\u30e9\u30fc\u30c1\u30a7\u30fc\u30f3"},"content":{"rendered":"
\n

<\/p>\n

<\/div>\n

ISO 606 \/ ANSI B29.1 \u2014 Non-Marking Roller Chain<\/p>\n

12A-G1 \u30e9\u30d0\u30fc\u30c8\u30c3\u30d7\u30c1\u30a7\u30fc\u30f3<\/h1>\n

<\/p>\n

\n
\n

\u30d4\u30c3\u30c1<\/p>\n

19.05 mm<\/span><\/p>\n<\/div>\n

\n

\u6297\u5f35\u529b<\/p>\n

31.8 kN<\/span><\/p>\n<\/div>\n

\n

\u91cd\u3055<\/p>\n

2.55 kg\/m<\/span><\/p>\n<\/div>\n

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Rubber Grade<\/p>\n

NBR \/ NR<\/p>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\"12A-G1The 12A-G1 rubber top chain is an ISO-standard roller chain with vulcanized rubber pads bonded to the outer face of each roller. The elastomer crown eliminates direct metal-to-surface contact, making it a non-marking conveyor chain: it moves finished wood panels, float glass, synthetic laminates, painted automotive parts, and food packaging without leaving scratches, pressure marks, or contamination. The rubber layer also absorbs sprocket-engagement impulse noise, reducing airborne sound compared with bare-steel chains on the same conveyor frame.<\/p>\n

At roller-chain-manufacturers.com we supply the 12A-G1 in carbon steel and stainless steel (SS304, SS316), with rubber pads in NBR (nitrile \u2014 oil and grease resistant) or NR (natural rubber \u2014 high grip), Shore hardness 65\u201375 or 75\u201385. All chains comply with ISO 606 \/ DIN 8187 \/ ANSI B29.1 and are manufactured under ISO 9001:2015.<\/p>\n

<\/p>\n

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Full Dimensional Specifications<\/h2>\n<\/div>\n
\n\n\n\n\n\n\n
12A-G1 Chain \u2014 ISO 606 Dimensions<\/th>\n<\/tr>\n
\u30c1\u30a7\u30fc\u30f3\u756a\u53f7<\/th>\nPitch P
\n(mm)<\/span><\/th>\n		Roller \u00d8 d1
\n(mm)<\/span><\/th>\n		Inner Width b1
\n(mm)<\/span><\/th>\n		Pin \u00d8 d2
\n(mm)<\/span><\/th>\n		Pin Length L
\n(mm)<\/span><\/th>\n		Plate Ht h2
\n(mm)<\/span><\/th>\n		Attch. A
\n(mm)<\/span><\/th>\n		Attch. B
\n(mm)<\/span><\/th>\n		Attch. H
\n(mm)<\/span><\/th>\n		Plate T
\n(mm)<\/span><\/th>\n		Tensile Str. Q
\n(kN \/ lbf)<\/span><\/th>\n		\u91cd\u3055
\n(kg\/m)<\/span><\/th>\n<\/tr>\n<\/thead>\n
12A-G1<\/td>\n19.050<\/td>\n11.91<\/td>\n12.57<\/td>\n5.94<\/td>\n29.9<\/td>\n18.00<\/td>\n21.40<\/td>\n37.05<\/td>\n21.0<\/td>\n1.85<\/td>\n31.8 \/ 7,153<\/td>\n2.55<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\"12A-G1<\/p>\n

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Materials & Configuration<\/h2>\n<\/div>\n

<\/p>\n

\n

<\/p>\n

\n
\n

Chain Body<\/p>\n<\/div>\n\n\n\n\n\n
\u70ad\u7d20\u92fc<\/td>\n45Mn, 42CrMo, 20CrMo<\/td>\n<\/tr>\n
\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc<\/td>\nSS304, SS316<\/td>\n<\/tr>\n
\u8868\u9762\u51e6\u7406<\/td>\nBlackening, Bluing, Shot peening, Zinc \/ Nickel plated<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

<\/p>\n

\n
\n

Rubber Pad<\/p>\n<\/div>\n\n\n\n\n\n
Compound<\/td>\nNBR (oil-resistant) \u00a0|\u00a0 NR (high-grip)<\/td>\n<\/tr>\n
Shore hardness<\/td>\n65\u201375 A \u00a0|\u00a0 75\u201385 A<\/td>\n<\/tr>\n
Properties<\/td>\nOil-resistant \u00b7 Heat-resistant \u00b7 Non-marking \u00b7 Low-noise<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

<\/p>\n

\n

Key Features<\/h2>\n<\/div>\n
\n
\n

\ud83d\udee1\ufe0f<\/p>\n

Non-Marking Rubber Crown<\/p>\n

Vulcanized rubber bonded to each roller protects lacquered wood, float glass, PVC panels, and clearcoat finishes from pressure marks and abrasion.<\/p>\n<\/div>\n

\n

\ud83d\udd07<\/p>\n

Noise & Vibration Damping<\/p>\n

The elastomer absorbs sprocket-engagement impact energy, cutting airborne noise versus bare-steel chains \u2014 valuable where workplace noise limits apply.<\/p>\n<\/div>\n

\n

\u26a1<\/p>\n

31.8 kN Tensile Strength<\/p>\n

ISO-compliant link geometry delivers the same load rating as a standard 60 (ANSI) chain \u2014 the rubber top adds protection without sacrificing capacity.<\/p>\n<\/div>\n

\n

\ud83d\udd2c<\/p>\n

Two Rubber Grades<\/p>\n

NBR resists petroleum oils and lubricants; NR provides higher friction for inclined or high-speed lines. Shore 65\u201375 or 75\u201385 balances grip against wear life.<\/p>\n<\/div>\n

\n

\ud83e\uddfc<\/p>\n

Stainless Steel \/ Washdown Ready<\/p>\n

SS304 \/ SS316 body + NBR pad option for food-grade conveyors, beverage bottling, and pharma packaging where CIP detergent washdown is routine.<\/p>\n<\/div>\n

\n

\ud83d\udd27<\/p>\n

Drop-in Sprocket Compatibility<\/p>\n

Uses the ISO 12A \/ ANSI 60 tooth profile. Existing sprockets need not be replaced when retrofitting a bare-steel conveyor with rubber-top chain.<\/p>\n<\/div>\n<\/div>\n

<\/p>\n

\n

Typical Applications<\/h2>\n<\/div>\n
\n\n\n\n\n\n\n\n\n\n\n
Industry<\/th>\nUse Case<\/th>\nWhy Rubber Top Chain<\/th>\n<\/tr>\n<\/thead>\n
Wood & Panel<\/td>\nMDF \/ plywood \/ laminate lines<\/td>\nZero surface marking on finished faces<\/td>\n<\/tr>\n
Glass Processing<\/td>\nFloat glass cutting & tempering<\/td>\nSoft contact prevents micro-cracks<\/td>\n<\/tr>\n
Food & Beverage<\/td>\nBottling, canning, bakery lines<\/td>\nSS + NBR for washdown; non-contaminating<\/td>\n<\/tr>\n
Packaging Machinery<\/td>\nCase packers, shrink tunnels<\/td>\nPrevents carton scuffing and creasing<\/td>\n<\/tr>\n
\u81ea\u52d5\u8eca<\/td>\nPaint-line & trim-assembly conveyors<\/td>\nProtects clearcoat from contact marks<\/td>\n<\/tr>\n
Electronics<\/td>\nPCB & display-panel transport<\/td>\nLow-vibration handling, no component shift<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

<\/p>\n

\n

Matched 12A-G1 Sprockets<\/h2>\n<\/div>\n
\n

We supply hardened-tooth sprockets machined to the ISO 12A tooth profile (19.05 mm pitch) in three materials: C45 carbon steel (standard), 40Cr alloy steel (heavy-duty, tooth-hardened), and SS304 (food\/pharma). Available bore styles include plain bore, keyway, QD bushing, and taper-lock; tooth counts 9T\u2013120T held in stock.<\/p>\n

Note:<\/strong> A worn or incorrect tooth profile will prematurely damage rubber pads even while the \u30b9\u30c1\u30fc\u30eb\u30c1\u30a7\u30fc\u30f3<\/a> body remains serviceable. Contact our engineering team if you need a sprocket specification confirmed before ordering.<\/p>\n

\"\"<\/p>\n<\/div>\n

<\/p>\n

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Order & Delivery<\/h2>\n<\/div>\n
\n
\n

\u30b5\u30f3\u30d7\u30eb<\/p>\n

20 days<\/span><\/p>\n<\/div>\n

\n

Production Order<\/p>\n

45 days<\/span><\/p>\n<\/div>\n

\n

\u8a8d\u8a3c<\/p>\n

ISO 9001:2015<\/p>\n<\/div>\n

\n

\u30d1\u30c3\u30b1\u30fc\u30b8<\/p>\n

Wooden case \/ Pallet \/ Custom<\/p>\n<\/div>\n<\/div>\n

<\/p>\n

\n
\n

Factory-direct \u00b7 OEM accepted \u00b7 ISO 9001:2015<\/p>\n

Ready to Request a Quote?<\/p>\n

Send us your quantity, rubber grade (NBR \/ NR), chain material, and conveyor layout details. Response within one business day.<\/p>\n<\/div>\n

Contact Us \u2192<\/a><\/p>\n<\/div>\n

gzl\u306b\u3088\u308b\u7de8\u96c6<\/p>","protected":false},"excerpt":{"rendered":"

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