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20B A-Plate Sprockets

20B B-Hub Sprockets

20B Metric Roller Chain Sprockets

20B roller chain sprockets are manufactured for metric 20B roller chain and are manufactured in accordance with ISO, DIN, and BS228/3 standards. Our sprockets are precision manufactured from high-quality steel, directly interchange with other manufactures, and are engineered for superb performance and durability. Common styles of these sprockets include; A-Plate, B-Hub, C-Hub, and taper bushed type but others are available upon request. The below charts show our standard sizes for 20B sprockets, if you don't see the exact sprocket you need we also custom manufacture sprockets. To get a quote on 20B sprockets or for more information please contact us and we will be happy to assist you.

20B A-Plate Sprockets:

Sprocket Size	Tooth Count	Pitch Diameter	Stock Bore	Sprocket Weight (kg)
Sprocket Size	Tooth Count	Pitch Diameter	Stock Bore	Sprocket Weight (kg)
20A8	8	82.97mm	25mm	0.63
20A9	9	92.83mm	25mm	0.95
20A10	10	102.75mm	25mm	1.27
20A11	11	112.70mm	25mm	1.59
20A12	12	122.67mm	25mm	1.91
20A13	13	132.67mm	25mm	2.18
20A14	14	142.68mm	25mm	2.49
20A15	15	152.71mm	25mm	2.68
20A16	16	162.75mm	24mm	3.08
20A17	17	172.79mm	24mm	3.54
20A18	18	182.84mm	30mm	3.81
20A19	19	192.90mm	30mm	4.31
20A20	20	202.96mm	30mm	4.58
20A21	21	213.03mm	32mm	5.17
20A22	22	223.10mm	32mm	5.72
20A23	23	233.17mm	32mm	5.99
20A24	24	243.25mm	32mm	6.62
20A25	25	253.32mm	32mm	6.94
20A26	26	263.41mm	32mm	7.62
20A27	27	273.49mm	32mm	8.35
20A28	28	283.57mm	32mm	8.85
20A29	29	293.66mm	32mm	9.43
20A30	30	303.75mm	32mm	9.98
20A31	31	313.83mm	32mm	10.73
20A32	32	323.92mm	32mm	11.49
20A33	33	334.01mm	32mm	12.24
20A34	34	344.10mm	32mm	13.00
20A35	35	354.20mm	32mm	13.75
20A36	36	364.29mm	32mm	14.50
20A37	37	374.38mm	32mm	15.25
20A38	38	384.48mm	32mm	16.01
20A39	39	394.57mm	32mm	16.76
20A40	40	404.67mm	32mm	17.52
20A41	41	414.77mm	32mm	18.27
20A42	42	424.88mm	32mm	19.03
20A43	43	434.96mm	32mm	19.78
20A44	44	445.06mm	32mm	20.53
20A45	45	455.15mm	32mm	21.29
20A46	46	465.25mm	32mm	22.04
20A47	47	475.35mm	32mm	22.79
20A48	48	485.45mm	32mm	23.55
20A49	49	495.55mm	32mm	24.30
20A50	50	505.65mm	32mm	25.06
20A51	51	515.75mm	40mm	24.43
20A52	52	525.85mm	40mm	25.85
20A53	53	535.95mm	40mm	27.27
20A54	54	546.05mm	40mm	25.70
20A55	55	556.15mm	40mm	30.12
20A56	56	566.25mm	40mm	31.34
20A57	57	576.35mm	40mm	32.96
20A58	58	586.45mm	40mm	35.80
20A59	59	596.56mm	40mm	37.22
20A60	60	606.66mm	40mm	38.64
20A70	70	707.68mm	40mm	52.85
20A72	72	727.89mm	40mm	55.70
20A76	76	768.30mm	40mm	61.38
20A80	80	808.71mm	40mm	67.06
20A84	84	849.13mm	40mm	72.75
20A90	90	909.76mm	40mm	81.27
20A95	95	960.28mm	40mm	102.42
20A96	96	970.38mm	40mm	103.84
20A114	114	1152.27mm	40mm	130.84

20B B-Hub Sprockets:

Sprocket Size	Tooth Count	Pitch Diameter	Stock Bore	Maximum Bore	Hub Diameter	Length Thru Bore (LTB)	Sprocket Weight (kg)
Sprocket Size	Tooth Count	Pitch Diameter	Stock Bore	Maximum Bore	Hub Diameter	Length Thru Bore (LTB)	Sprocket Weight (kg)
20B8	8	82.97mm	25mm	57mm	48mm	48mm	1.04
20B9	9	92.83mm	25mm	57mm	58mm	48mm	1.45
20B10	10	102.75mm	25mm	60mm	69mm	48mm	1.86
20B11	11	112.70mm	25mm	70mm	79mm	48mm	2.40
20B12	12	122.67mm	25mm	76mm	90mm	48mm	2.95
20B13	13	132.67mm	25mm	76mm	98mm	41mm	3.00
20B14	14	142.68mm	25mm	76mm	106mm	41mm	3.40
20B15	15	152.71mm	25mm	76mm	114mm	44mm	4.31
20B16	16	162.75mm	25mm	76mm	114mm	44mm	4.63
20B17	17	172.79mm	32mm	76mm	114mm	44mm	4.99
20B18	18	182.84mm	32mm	76mm	114mm	44mm	5.44
20B19	19	192.90mm	32mm	76mm	114mm	51mm	5.90
20B20	20	202.96mm	32mm	76mm	114mm	51mm	6.35
20B21	21	213.03mm	32mm	76mm	114mm	51mm	7.03
20B22	22	223.10mm	32mm	76mm	114mm	51mm	7.71
20B23	23	233.17mm	32mm	84mm	114mm	51mm	8.16
20B24	24	243.25mm	32mm	84mm	114mm	51mm	8.62
20B25	25	253.32mm	32mm	84mm	114mm	51mm	9.07
20B26	26	263.41mm	32mm	84mm	127mm	51mm	9.53
20B27	27	273.49mm	32mm	84mm	127mm	51mm	10.43
20B28	28	283.57mm	32mm	84mm	127mm	51mm	11.34
20B29	29	293.66mm	32mm	84mm	127mm	51mm	11.76
20B30	30	303.75mm	32mm	84mm	127mm	51mm	12.02
20B31	31	313.83mm	32mm	84mm	127mm	51mm	12.77
20B32	32	323.92mm	32mm	84mm	127mm	51mm	13.52
20B33	33	334.01mm	32mm	84mm	127mm	51mm	14.59
20B34	34	344.10mm	32mm	84mm	127mm	51mm	15.66
20B35	35	354.20mm	32mm	84mm	127mm	64mm	16.74
20B36	36	364.29mm	32mm	84mm	127mm	64mm	17.51
20B37	37	374.38mm	32mm	84mm	127mm	64mm	18.17
20B38	38	384.48mm	32mm	84mm	127mm	64mm	18.82
20B39	39	394.57mm	32mm	84mm	127mm	64mm	19.78
20B40	40	404.67mm	32mm	84mm	127mm	64mm	21.27
20B41	41	414.77mm	32mm	84mm	127mm	64mm	22.07
20B42	42	424.88mm	32mm	84mm	127mm	64mm	22.86
20B43	43	434.96mm	32mm	84mm	127mm	64mm	23.40
20B44	44	445.06mm	32mm	84mm	127mm	64mm	23.95
20B45	45	455.15mm	32mm	84mm	127mm	64mm	24.49
20B46	46	465.25mm	32mm	84mm	127mm	64mm	26.31
20B47	47	475.35mm	32mm	84mm	127mm	64mm	28.12
20B48	48	485.45mm	40mm	102mm	152mm	64mm	29.94
20B49	49	495.55mm	40mm	102mm	152mm	64mm	31.76
20B50	50	505.65mm	40mm	102mm	152mm	64mm	33.57
20B51	51	515.75mm	40mm	102mm	152mm	64mm	35.39
20B52	52	525.85mm	40mm	102mm	152mm	64mm	37.21
20B53	53	535.95mm	40mm	102mm	152mm	64mm	39.02

20B C-Hub Sprockets:

Sprocket Size	Tooth Count	Pitch Diameter	Stock Bore	Maximum Bore	Hub Diameter	Length Thru Bore (LTB)	Sprocket Weight (kg)
Sprocket Size	Tooth Count	Pitch Diameter	Stock Bore	Maximum Bore	Hub Diameter	Length Thru Bore (LTB)	Sprocket Weight (kg)
20C54	54	546.05mm	40mm	102mm	152mm	82mm	32.90
20C55	55	556.15mm	40mm	102mm	152mm	82mm	34.77
20C56	56	566.25mm	40mm	102mm	152mm	82mm	36.63
20C57	57	576.35mm	40mm	102mm	152mm	82mm	38.50
20C58	58	586.45mm	40mm	102mm	152mm	82mm	40.37
20C59	59	596.56mm	40mm	102mm	152mm	82mm	42.24
20C60	60	606.66mm	40mm	102mm	152mm	82mm	44.10
20C70	70	707.68mm	40mm	133mm	178mm	95mm	65.36
20C72	72	727.89mm	40mm	133mm	178mm	95mm	67.23
20C76	76	768.30mm	40mm	133mm	178mm	95mm	70.98
20C80	80	808.71mm	40mm	133mm	178mm	95mm	74.70
20C84	84	849.13mm	40mm	133mm	178mm	95mm	78.43
20C90	90	909.76mm	40mm	133mm	178mm	95mm	84.03
20C95	95	960.28mm	40mm	133mm	178mm	114mm	117.18
20C96	96	970.38mm	40mm	133mm	178mm	114mm	117.56
20C114	114	1152.27mm	40mm	133mm	178mm	114mm	124.40

20B Taper Bushed Sprockets:

Sprocket Size	Tooth Count	Pitch Diameter	Bushing Number	Bushing Max. Bore	Dimension (L)	Dimension (C)	Sprocket Weight (kg)	Bushing Weight (kg)
Sprocket Size	Tooth Count	Pitch Diameter	Bushing Number	Bushing Max. Bore	Dimension (L)	Dimension (C)	Sprocket Weight (kg)	Bushing Weight (kg)
*20BTB11H*	11	112.70mm	1615	41.28mm	38.10mm	62.69mm	1.22	0.54
*20BTB12H*	12	122.67mm	1615	41.28mm	38.10mm	70.64mm	1.41	0.54
*20BTB13H*	13	132.67mm	2012	50.80mm	31.75mm	90.47mm	1.45	0.77
*20BTB14H*	14	142.68mm	2012	50.80mm	31.75mm	90.47mm	1.63	0.77
*20BTB15H*	15	152.71mm	2517	63.50mm	44.45mm	107.95mm	2.31	1.59
*20BTB16H*	16	162.75mm	2517	63.50mm	44.45mm	107.95mm	2.72	1.59
*20BTB17H*	17	172.79mm	2517	63.50mm	44.45mm	107.95mm	3.27	1.59
*20BTB18H*	18	182.84mm	2517	63.50mm	44.45mm	107.95mm	3.63	1.59
*20BTB19H*	19	192.90mm	2517	63.50mm	44.45mm	107.95mm	4.09	1.59
*20BTB20H*	20	202.96mm	2517	63.50mm	44.45mm	107.95mm	4.40	1.59
*20BTB21H*	21	213.03mm	2517	63.50mm	44.45mm	107.95mm	4.54	1.59
*20BTB22H*	22	223.10mm	2517	63.50mm	44.45mm	107.95mm	4.77	1.59
*20BTB23H*	23	233.17mm	2517	63.50mm	44.45mm	107.95mm	5.58	1.59
*20BTB24H*	24	243.25mm	2517	63.50mm	44.45mm	107.95mm	6.13	1.59
*20BTB25H*	25	253.32mm	2517	63.50mm	44.45mm	107.95mm	6.95	1.59
*20BTB26H*	26	263.41mm	2517	63.50mm	44.45mm	107.95mm	7.35	1.59
*20BTB28H*	28	283.57mm	3020	76.20mm	50.80mm	133.35mm	7.90	2.95
*20BTB30H*	30	303.75mm	3020	76.20mm	50.80mm	133.35mm	9.62	2.95
*20BTB32*	32	323.92mm	3020	76.20mm	50.80mm	133.35mm	11.03	2.95
*20BTB35*	35	354.20mm	3020	76.20mm	50.80mm	133.35mm	13.15	2.95
*20BTB36*	36	364.29mm	3020	76.20mm	50.80mm	133.35mm	13.86	2.95
*20BTB38*	38	384.48mm	3020	76.20mm	50.80mm	133.35mm	15.98	2.95
*20BTB40*	40	404.67mm	3020	76.20mm	50.80mm	133.35mm	19.43	2.95
*20BTB45*	45	455.15mm	3020	76.20mm	50.80mm	133.35mm	25.18	2.95
*20BTB48*	48	485.45mm	3020	76.20mm	50.80mm	133.35mm	28.62	2.95
*20BTB54*	54	546.05mm	3020	76.20mm	50.80mm	133.35mm	35.52	2.95
*20BTB57*	57	576.35mm	3020	76.20mm	50.80mm	133.35mm	37.82	2.95
*20BTB60*	60	606.66mm	3020	76.20mm	50.80mm	133.35mm	41.27	2.95
*20CTB70*	70	707.68mm	3535	88.90mm	88.90mm	171.45mm	51.56	6.35
*20CTB72*	72	727.89mm	3535	88.90mm	88.90mm	171.45mm	53.97	6.35
*20CTB76*	76	768.30mm	3535	88.90mm	88.90mm	171.45mm	60.33	6.35
*20CTB80*	80	808.71mm	3535	88.90mm	88.90mm	171.45mm	66.23	6.35
*20CTB84*	84	849.13mm	3535	88.90mm	88.90mm	171.45mm	73.48	6.35
*20CTB90*	90	909.76mm	3535	88.90mm	88.90mm	171.45mm	94.33	6.35
*20CTB95*	95	960.28mm	3535	88.90mm	88.90mm	171.45mm	96.16	6.35

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20B Metric Roller Chain Sprockets

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