BS/DIN Chain Series

British Standard Roller Chains

Single, Double and Triple Strand TSUBAKI BS Roller Chains are standardized in accordance with the ISO type "B". The dimensions are fully interchangeable with chains built according to the BS228: 1970 and the DIN8187.

• Single Strand

• Double Strand

• Triple Strand

Single Strand

Dimensions-mm

Chain No.	ISO BS/DIN No.	Pitch P	Roller Dia. R	Width between Roller Link Plates W
RF06B *	06B	9.525	6.35	5.72
RS08B	08B	12.70	8.51	7.75
RS10B	10B	15.875	10.16	9.65
RS12B	12B	19.05	12.07	11.68
RS16B	16B	25.40	15.88	17.02
RS20B	20B	31.75	19.05	19.56
RS24B	24B	38.10	25.40	25.40
RS28B	28B	44.45	27.94	30.99
RS32B	32B	50.80	29.21	30.99
RS40B	40B	63.50	39.37	38.10

Dimensions-mm

Chain No.	Pin			Link Plate			Transverse Pitch C
	Dia. D	From Pin Head to C.L. L1	From Pin end to C.L. L2	Thickness T(RL)	Thickness t(PL)	Height H(max)
RF06B *	3.28	6.35	7.65	1.27	1.0	8.2	-
RS08B	4.45	8.4	10.0	1.6	1.6	11.8	-
RS10B	5.08	9.55	11.25	1.5	1.5	14.7	-
RS12B	5.72	11.2	13.1	1.8	1.8	16.1	-
RS16B	8.28	17.9	19.95	4.0	3.2	21.0	-
RS20B	10.19	19.9	23.1	4.4	3.4	26.0	-
RS24B	14.63	26.65	31.85	6.0	5.6	33.4	-
RS28B	15.90	32.45	37.45	7.5	6.3	36.4	-
RS32B	17.81	32.1	37.7	7.0	6.3	42.2	-
RS40B	22.89	39.25	45.05	8.5	8.0	52.9	-

Dimensions-mm

Chain No.	Minimum Tensile Strength kN {kgf}	Bearing Area (Nominal) cm2	Approx. Mass kg/m	Number of Links per unit (5 mts)
RF06B *	9.0 {920}	0.28	0.39	526
RS08B	19.0 {1,930}	0.50	0.70	394
RS10B	23.0 {2,340}	0.67	0.95	316
RS12B	31.7 {3,160}	0.89	1.25	264
RS16B	70.0 {7,100}	2.10	2.70	198
RS20B	98.1 {10,000}	2.95	3.85	158
RS24B	167 {17,000}	5.54	7.45	132
RS28B	200 {20,400}	7.40	9.45	114
RS32B	255 {26,000}	8.11	10.25	100
RS40B	373 {38,000}	12.76	16.35	80

Double Strand

Dimensions-mm

Chain No.	ISO BS/DIN No.	Pitch P	Roller Dia. R	Width between Roller Link Plates W
RF06B-2 *^	06B-2	9.525	6.35	5.72
RS08B-2 ^	08B-2	12.70	8.51	7.75
RS10B-2	10B-2	15.875	10.16	9.65
RS12B-2	12B-2	19.05	12.07	11.68
RS16B-2	16B-2	25.40	15.88	17.02
RS20B-2	20B-2	31.75	19.05	19.56
RS24B-2	24B-2	38.10	25.40	25.40
RS28B-2	28B-2	44.45	27.94	30.99
RS32B-2	32B-2	50.80	29.21	30.99
RS40B-2	40B-2	63.50	39.37	38.10

Dimensions-mm

Chain No.	Pin			Link Plate			Transverse Pitch C
	Dia. D	From Pin Head to C.L. L1	From Pin end to C.L. L2	Thickness T(RL)	Thickness t(PL)	Height H(max)
RF06B-2 *^	3.28	11.43	12.57	1.27	1.0	8.2	10.24
RS08B-2 ^	4.45	15.3	16.9	1.6	1.6	11.8	13.92
RS10B-2	5.08	17.85	19.55	1.5	1.5	14.7	16.59
RS12B-2	5.72	20.85	22.75	1.8	1.8	16.1	19.46
RS16B-2	8.28	33.55	35.75	4.0	3.2	21.0	31.88
RS20B-2	10.19	38.25	41.45	4.4	3.4	26.0	36.45
RS24B-2	14.63	50.8	56.0	6.0	5.6	33.4	48.36
RS28B-2	15.90	62.15	67.15	7.5	6.3	36.4	59.56
RS32B-2	17.81	61.25	66.85	7.0	6.3	42.2	58.55
RS40B-2	22.89	75.4	81.2	8.5	8.0	52.9	72.29

Dimensions-mm

Chain No.	Minimum Tensile Strength kN {kgf}	Bearing Area (Nominal) cm2	Approx. Mass kg/m	Number of Links per unit (5 mts)
RF06B-2 *^	17.0 {1,730}	0.56	0.75	526
RS08B-2 ^	32.0 {3,260}	1.00	1.35	394
RS10B-2	44.5 {4,540}	1.34	1.85	316
RS12B-2	61.0 {6,220}	1.78	2.50	264
RS16B-2	128 {13,000}	4.20	5.40	198
RS20B-2	197 {20,100}	5.91	7.65	158
RS24B-2	335 {34,100}	11.09	14.65	132
RS28B-2	374 {38,100}	14.81	18.80	114
RS32B-2	485 {49,500}	16.23	20.10	100
RS40B-2	716 {73,000}	25.52	32.00	80

Triple Strand

Dimensions-mm

Chain No.	ISO BS/DIN No.	Pitch P	Roller Dia. R	Width between Roller Link Plates W
RF06B-3 *^	06B-3	9.525	6.35	5.72
RS08B-3 ^	08B-3	12.70	8.51	7.75
RS10B-3	10B-3	15.875	10.16	9.65
RS12B-3	12B-3	19.05	12.07	11.68
RS16B-3	16B-3	25.40	15.88	17.02
RS20B-3	20B-3	31.75	19.05	19.56
RS24B-3	24B-3	38.10	25.40	25.40
RS28B-3	28B-3	44.45	27.94	30.99
RS32B-3	32B-3	50.80	29.21	30.99
RS40B-3	40B-3	63.50	39.37	38.10

Dimensions-mm

Chain No.	Pin			Link Plate			Transverse Pitch C
	Dia. D	From Pin Head to C.L. L1	From Pin end to C.L. L2	Thickness T(RL)	Thickness t(PL)	Height H(max)
RF06B-3 *^	3.28	16.9	17.5	1.27	1.0	8.2	10.24
RS08B-3 ^	4.45	22.25	23.85	1.6	1.6	11.8	13.92
RS10B-3	5.08	26.15	27.85	1.5	1.5	14.7	16.59
RS12B-3	5.72	30.6	32.5	1.8	1.8	16.1	19.46
RS16B-3	8.28	49.5	51.7	4.0	3.2	21.0	31.88
RS20B-3	10.19	56.5	59.7	4.4	3.4	26.0	36.45
RS24B-3	14.63	75.1	80.2	6.0	5.6	33.4	48.36
RS28B-3	15.90	91.95	96.95	7.5	6.3	36.4	59.56
RS32B-3	17.81	90.5	96.10	7.0	6.3	42.2	58.55
RS40B-3	22.89	111.5	117.3	8.5	8.0	52.9	72.29

Dimensions-mm

Chain No.	Minimum Tensile Strength kN {kgf}	Bearing Area (Nominal) cm2	Approx. Mass kg/m	Number of Links per unit (5 mts)
RF06B-3 *^	24.9 {2,540}	0.84	1.11	526
RS08B-3 ^	47.5 {4,840}	1.50	2.00	394
RS10B-3	66.8 {6,820}	2.01	2.80	316
RS12B-3	92 {9,400}	2.67	3.80	264
RS16B-3	192 {19,600}	6.30	8.00	198
RS20B-3	295 {30,100}	8.86	11.45	158
RS24B-3	500 {51,000}	16.64	21.75	132
RS28B-3	560 {57,100}	22.21	28.20	114
RS32B-3	729 {74,300}	24.34	29.90	100
RS40B-3	1,080 {110,000}	38.28	47.75	80

* Flat shape link plate
^ Middle link plate has one solid plate.

Riveted type chain will be supplied unless otherwise specified. Attachment chain is also available.

Catalogs

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