{"id":670,"date":"2026-01-13T07:39:45","date_gmt":"2026-01-13T07:39:45","guid":{"rendered":"https:\/\/roller-chain-manufacturers.com\/?post_type=product&p=670"},"modified":"2026-08-26T09:35:25","modified_gmt":"2026-08-26T09:35:25","slug":"sb%e3%82%b7%e3%83%aa%e3%83%bc%e3%82%ba-%e3%82%b5%e3%82%a4%e3%83%89%e3%83%9c%e3%82%a6%e3%83%81%e3%82%a7%e3%83%bc%e3%83%b3","status":"publish","type":"product","link":"https:\/\/roller-chain-manufacturers.com\/ja\/product\/sb%e3%82%b7%e3%83%aa%e3%83%bc%e3%82%ba-%e3%82%b5%e3%82%a4%e3%83%89%e3%83%9c%e3%82%a6%e3%83%81%e3%82%a7%e3%83%bc%e3%83%b3\/","title":{"rendered":"SB\u30b7\u30ea\u30fc\u30ba \u30b5\u30a4\u30c9\u30dc\u30a6\u30c1\u30a7\u30fc\u30f3 40SB 43SB 50SB 60SB 63SB 80SB"},"content":{"rendered":"
\n

Side Bow Roller Chains \u2014 SB Series & British Standard<\/h2>\n

ANSI 40SB \u00b7 43SB \u00b7 50SB \u00b7 60SB \u00b7 63SB \u00b7 80SB \u00a0|\u00a0 BS 06BSBF1 \u00b7 08BSB \u00b7 08BSBF1 \u00b7 10BSB \u00b7 12BSB \u00b7 16BSB \u00a0|\u00a0 Heavy-duty #C2050SB \u00b7 #C2060SBF1 \u00b7 #C2062F6SB<\/p>\n<\/div>\n

<\/p>\n

\u2713 Bend radius 300\u20131,100 mm<\/span>
\n\u2713 Tensile strength 8.0\u201355.6 kN<\/span>
\n\u2713 ISO \/ ANSI sprocket compatible<\/span>
\n\u2713 Stainless & custom variants available<\/span>
\n\u2713 Bi-directional lateral travel<\/span><\/div>\n

<\/p>\n

\"SB\u30b7\u30ea\u30fc\u30baSide bow roller chains are engineered for horizontal curved conveyor paths. Unlike conventional drive chains optimised purely for linear rigidity, SB series chains incorporate deliberate internal clearances and modified link-plate geometries that allow the chain to negotiate tight bends smoothly \u2014 eliminating the need for auxiliary transfer mechanisms, radius sprockets, or segmented conveyor sections.<\/p>\n

Our range spans ANSI and British Standard series covering pitches from 9.525 mm (#06BSBF1) up to 38.100 mm (#C2062F6SB), with minimum bend radii from 300 mm to 1,100 mm and tensile strengths from 8.0 kN to 55.6 kN. Carbon steel is standard; stainless 304\/316 and attachment-plate variants are available to order.<\/p>\n

<\/p>\n

\n
\n
\u21a9<\/div>\n

Bi-directional flex<\/h3>\n

Deflects left or right without preferential orientation \u2014 simplifies layout in complex serpentine routing.<\/p>\n<\/div>\n

\n
\u25b7<\/div>\n

Continuous motion<\/h3>\n

Eliminates dead zones at conveyor junctions, reducing product damage and inter-transfer maintenance.<\/p>\n<\/div>\n

\n
\u2699<\/div>\n

Standard sprockets<\/h3>\n

Tooth profiles unchanged from base roller chain standard \u2014 no bespoke wheel geometries needed on straight-run sections.<\/p>\n<\/div>\n

\n
\ud83d\udcf7<\/div>\n

High pretension build<\/h3>\n

Mitigates initial elongation, extending re-tensioning intervals and maintaining pitch accuracy through service life.<\/p>\n<\/div>\n

\n
\ud83d\udca7<\/div>\n

Washdown & food-grade<\/h3>\n

304\/316 stainless variants available for food processing, beverage, and pharmaceutical environments.<\/p>\n<\/div>\n

\n
\ud83d\udd27<\/div>\n

Custom configurations<\/h3>\n

Extended pins for plastic flights, F1\/F6 attachment plates, coated and hardened variants to specification.<\/p>\n<\/div>\n<\/div>\n

<\/p>\n

How side bow chains achieve lateral flexibility<\/h3>\n
\n
\n

Option A \u2014 Conical pin<\/p>\n

The pin tapers subtly within the bushing bore, permitting angular displacement in the horizontal plane. Cost-effective for moderate-speed, lighter-duty curved runs. Modest compromise in long-term pitch precision under sustained high-velocity cycles.<\/p>\n<\/div>\n

\n

Option B \u2014 Loose cylindrical pin (preferred)<\/p>\n

Deliberately loosened clearance between cylindrical pin and bushing. Superior fatigue resistance, more predictable elongation behaviour, and significantly longer service life \u2014 the preferred choice for sustained high-speed industrial duty.<\/p>\n<\/div>\n<\/div>\n

<\/p>\n

Typical application industries<\/h3>\n
Bottling & canning<\/span>
\nFood & beverage processing<\/span>
\nAutomotive assembly<\/span>
\nPharmaceutical packaging<\/span>
\nPostal \/ logistics sortation<\/span>
\nOverhead serpentine conveyors<\/span>
\nModular assembly lines<\/span><\/div>\n

<\/p>\n

Full specifications \u2014 SB series side bow roller chains<\/h3>\n

Dimensions in mm \u00a0\u00b7\u00a0 Q min = minimum ultimate tensile strength (kN \/ lbf) \u00a0\u00b7\u00a0 Q\u2080 = average tensile strength (kN) \u00a0\u00b7\u00a0 R = minimum side bow radius (mm) \u00a0\u00b7\u00a0 # = straight side plates<\/p>\n

\n\n\n\n\n<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u30c1\u30a7\u30fc\u30f3\u756a\u53f7<\/th>\nPitch P
\n(mm)<\/span><\/th>\n		Roller \u2300
\nd\u2081 max (mm)<\/span><\/th>\n		Inner width
\nb\u2081 min (mm)<\/span><\/th>\n		Pin \u2300
\nd\u2082 max (mm)<\/span><\/th>\n		Pin length (mm)<\/th>\nPlate depth
\nh\u2082 max (mm)<\/span><\/th>\n		Plate thick.
\nt\/T max (mm)<\/span><\/th>\n		Bow radius
\nR (mm)<\/span><\/th>\n		Tensile str.
\nQ min (kN\/lbf)<\/span><\/th>\n		Avg. tensile
\nQ\u2080 (kN)<\/span><\/th>\n		\u91cd\u3055
\nq (kg\/m)<\/span><\/th>\n<\/tr>\n
L\u6700\u5927<\/th>\nLc \u6700\u5927<\/th>\n<\/tr>\n<\/thead>\n
ANSI SB SERIES<\/td>\n<\/tr>\n
40SB<\/td>\n12.700<\/td>\n7.95<\/td>\n7.85<\/td>\n3.96<\/td>\n16.9<\/td>\n18.1<\/td>\n11.7<\/td>\n1.50<\/td>\n350<\/td>\n13.8 \/ 3,136<\/td>\n15.20<\/td>\n0.80<\/td>\n<\/tr>\n
43SB<\/td>\n12.700<\/td>\n7.95<\/td>\n7.85<\/td>\n3.45<\/td>\n18.3<\/td>\n19.5<\/td>\n11.7<\/td>\n1.50<\/td>\n305<\/td>\n12.0 \/ 2,727<\/td>\n13.20<\/td>\n0.64<\/td>\n<\/tr>\n
50SB<\/td>\n15.875<\/td>\n10.16<\/td>\n9.40<\/td>\n4.37<\/td>\n20.7<\/td>\n22.7<\/td>\n14.9<\/td>\n2.03<\/td>\n400<\/td>\n20.6 \/ 4,681<\/td>\n22.70<\/td>\n1.09<\/td>\n<\/tr>\n
60SB<\/td>\n19.050<\/td>\n11.91<\/td>\n12.57<\/td>\n5.34<\/td>\n26.6<\/td>\n28.4<\/td>\n18.0<\/td>\n2.42<\/td>\n500<\/td>\n15.7 \/ 3,568<\/td>\n17.30<\/td>\n1.54<\/td>\n<\/tr>\n
63SB<\/td>\n19.050<\/td>\n11.91<\/td>\n12.68<\/td>\n5.08<\/td>\n28.8<\/td>\n30.6<\/td>\n17.2<\/td>\n2.42\/2.03<\/td>\n350<\/td>\n12.5 \/ 2,840<\/td>\n20.00<\/td>\n1.40<\/td>\n<\/tr>\n
80SB<\/td>\n25.400<\/td>\n15.88<\/td>\n15.75<\/td>\n7.19<\/td>\n34.0<\/td>\n37.3<\/td>\n24.0<\/td>\n3.25<\/td>\n711<\/td>\n40.9 \/ 9,201<\/td>\n42.00<\/td>\n2.60<\/td>\n<\/tr>\n

<\/p>\n

BRITISH STANDARD (BS) VARIANTS<\/td>\n<\/tr>\n
#06BSBF1<\/td>\n9.525<\/td>\n6.35<\/td>\n5.72<\/td>\n3.05<\/td>\n13.5<\/td>\n15.0<\/td>\n8.2<\/td>\n1.30<\/td>\n300<\/td>\n8.0 \/ 1,818<\/td>\n8.80<\/td>\n0.60<\/td>\n<\/tr>\n
08BSB<\/td>\n12.700<\/td>\n8.51<\/td>\n7.75<\/td>\n3.97<\/td>\n17.4<\/td>\n18.7<\/td>\n11.8<\/td>\n1.60<\/td>\n400<\/td>\n14.0 \/ 3,182<\/td>\n15.40<\/td>\n0.70<\/td>\n<\/tr>\n
08BSBF1<\/td>\n12.700<\/td>\n8.51<\/td>\n7.75<\/td>\n3.97<\/td>\n16.3<\/td>\n17.6<\/td>\n11.8<\/td>\n1.6\/1.2<\/td>\n400<\/td>\n12.8 \/ 2,909<\/td>\n14.10<\/td>\n0.65<\/td>\n<\/tr>\n
10BSB<\/td>\n15.875<\/td>\n10.16<\/td>\n9.65<\/td>\n4.50<\/td>\n20.1<\/td>\n21.5<\/td>\n14.7<\/td>\n1.70<\/td>\n400<\/td>\n15.6 \/ 3,545<\/td>\n17.20<\/td>\n0.93<\/td>\n<\/tr>\n
12BSB<\/td>\n19.050<\/td>\n12.07<\/td>\n11.68<\/td>\n5.12<\/td>\n23.1<\/td>\n24.8<\/td>\n16.0<\/td>\n1.85<\/td>\n500<\/td>\n20.5 \/ 4,658<\/td>\n22.60<\/td>\n1.16<\/td>\n<\/tr>\n
16BSB<\/td>\n25.400<\/td>\n15.88<\/td>\n17.22<\/td>\n7.90<\/td>\n36.5<\/td>\n39.7<\/td>\n21.0<\/td>\n3.7\/3.0<\/td>\n500<\/td>\n55.6 \/ 12,635<\/td>\n64.00<\/td>\n2.53<\/td>\n<\/tr>\n

<\/p>\n

HEAVY-DUTY \/ AGRICULTURAL CONVEYOR VARIANTS \u00a0(# straight side plates)<\/td>\n<\/tr>\n
#C2050SB<\/td>\n31.750<\/td>\n10.16<\/td>\n9.40<\/td>\n5.08<\/td>\n21.3<\/td>\n22.6<\/td>\n15.0<\/td>\n2.03<\/td>\n800<\/td>\n21.8 \/ 4,954<\/td>\n24.00<\/td>\n0.84<\/td>\n<\/tr>\n
#C2060SBF1<\/td>\n38.100<\/td>\n11.91<\/td>\n12.57<\/td>\n5.08<\/td>\n26.8<\/td>\n28.8<\/td>\n18.0<\/td>\n2.42<\/td>\n800<\/td>\n21.8 \/ 4,954<\/td>\n24.00<\/td>\n1.17<\/td>\n<\/tr>\n
#C2062F6SB<\/td>\n38.100<\/td>\n22.23<\/td>\n12.57<\/td>\n5.34<\/td>\n26.6<\/td>\n29.0<\/td>\n23.0<\/td>\n2.42<\/td>\n1100<\/td>\n15.7 \/ 3,568<\/td>\n17.30<\/td>\n2.27<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\"\u30b7\u30ea\u30fc\u30ba\u30b5\u30a4\u30c9\u30dc\u30a6\u30c1\u30a7\u30fc\u30f3\"<\/p>\n

Selection guide \u2014 four inputs required<\/h3>\n
\n
\n
1<\/div>\n
\n

Curve radius<\/p>\n

Your tightest bend must be \u2265 the chain’s R value. Tighter curves require a smaller R model.<\/p>\n<\/div>\n<\/div>\n

\n
2<\/div>\n
\n

Chain pitch<\/a><\/p>\n

Must match existing or planned sprocket tooth spacing. Confirm ISO or ANSI standard.<\/p>\n<\/div>\n<\/div>\n

\n
3<\/div>\n
\n

Working load<\/p>\n

Apply a minimum 5:1 safety factor against Q min for dynamic conveyor duty cycles.<\/p>\n<\/div>\n<\/div>\n

\n
4<\/div>\n
\n

Environment<\/p>\n

Carbon steel for dry\/lightly lubricated indoor use. Stainless 304\/316 for washdown, food-contact, or high-humidity service.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\n
\n

Request a quote or technical datasheet<\/p>\n

Roller Chain Manufacturers \u2014 supplying SB series chains to OEM conveyor builders, food processing plants, and MRO distributors worldwide. Standard lengths, stainless options, and attachment variants available.<\/p>\n<\/div>\n

Get a quote \u2192<\/a><\/p>\n<\/div>\n

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

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