BS(20B) Roller Chain Sprockets steel, C45 pilot bore

Model: 20B British Standard Roller Chain Sprocket

Item specifics

Standard: British Standard

Material: C45 Steel

Pitch: 31.75mm

Roller Diam.: 19.05mm

Teeth Thickness: 18.50mm

Bore: pilot bore

Chain No.: 20B

Review

Description

BS（20B）Roller Chain Sprockets 1 1/4"x3/4", Steel, C45

British Standard Sprockets

Pitch: 31.75mm

Roller Diam. : 19.05mm

Tooth Width:18.50mm

Type: B

Bore Tolerance: H8

Chain No.	No. teeth	Outside Diam.	Hub Diam	LTB	Weight(kg)
S20B1	8	96.00	53.0	40.0	1.16
S20B1	9	106.50	63.0	40.0	1.51
S20B1	10	117.00	70.0	40.0	1.85
S20B1	11	127.00	77.0	45.0	2.42
S20B1	12	137.00	88.0	45.0	2.98
S20B1	13	147.50	98.0	45.0	3.58
S20B1	14	157.60	108.0	45.0	4.23
S20B1	15	167.70	118.0	45.0	4.93
S20B1	16	177.70	120.0	50.0	5.82
S20B1	17	187.80	120.0	50.0	6.20
S20B1	18	197.80	120.0	50.0	6.61
S20B1	19	207.90	120.0	50.0	7.04
S20B1	20	217.90	120.0	50.0	7.49
S20B1	21	228.00	140.0	55.0	9.59
S20B1	22	238.10	140.0	55.0	10.09
S20B1	23	248.20	140.0	55.0	10.61
S20B1	24	258.30	140.0	55.0	11.16
S20B1	25	268.40	140.0	55.0	11.73
S20B1	26	278.40	150.0	55.0	12.98
S20B1	27	288.50	150.0	55.0	13.59
S20B1	28	298.50	150.0	55.0	14.23
S20B1	29	308.60	150.0	55.0	14.90
S20B1	30	318.70	150.0	55.0	15.59
S20B1	31	328.80	150.0	55.0	16.30
S20B1	32	338.90	150.0	55.0	17.03
S20B1	33	349.00	150.0	55.0	17.79
S20B1	34	359.10	150.0	55.0	18.57
S20B1	35	369.20	150.0	55.0	19.37
S20B1	36	379.20	150.0	55.0	20.20
S20B1	37	389.30	150.0	55.0	21.05
S20B1	38	399.40	150.0	55.0	21.92
S20B1	39	409.50	150.0	55.0	22.82
S20B1	40	419.60	150.0	55.0	23.74
S20B1	41	430.70	150.0	80.0	28.15
S20B1	42	440.80	150.0	80.0	29.12
S20B1	43	450.90	150.0	80.0	30.11
S20B1	44	461.00	150.0	80.0	31.12
S20B1	45	471.10	150.0	80.0	32.16
S20B1	46	481.20	150.0	80.0	33.22
S20B1	47	491.30	150.0	80.0	34.30
S20B1	48	501.40	150.0	80.0	35.41
S20B1	49	511.50	150.0	80.0	36.54
S20B1	50	521.60	150.0	80.0	37.69
S20B1	51	531.70	150.0	80.0	38.87
S20B1	52	541.80	150.0	80.0	40.07
S20B1	53	551.90	150.0	80.0	41.29
S20B1	54	562.00	150.0	80.0	42.54
S20B1	55	572.00	150.0	80.0	43.81
S20B1	56	582.20	150.0	80.0	45.10
S20B1	57	592.30	150.0	80.0	46.42
S20B1	58	602.40	150.0	80.0	47.76
S20B1	59	612.50	150.0	80.0	49.12
S20B1	60	622.60	150.0	80.0	50.51
S20B1	61	632.70	150.0	80.0	51.92
S20B1	62	642.80	150.0	80.0	53.35
S20B1	63	652.90	160.0	80.0	55.98
S20B1	64	663.00	160.0	80.0	57.46
S20B1	65	673.10	160.0	80.0	58.96
S20B1	66	683.20	160.0	80.0	60.49
S20B1	67	693.30	160.0	80.0	62.04
S20B1	68	703.40	160.0	80.0	63.61
S20B1	69	713.50	160.0	80.0	65.21
S20B1	70	723.60	160.0	80.0	66.83
S20B1	71	733.70	160.0	80.0	68.47
S20B1	72	743.80	160.0	80.0	70.13
S20B1	73	753.90	160.0	80.0	71.82
S20B1	74	764.00	160.0	80.0	73.54
S20B1	75	774.20	160.0	80.0	75.27
S20B1	76	784.30	160.0	80.0	77.03
S20B1	77	794.40	160.0	80.0	78.81
S20B1	78	804.50	160.0	80.0	80.62
S20B1	79	814.60	160.0	80.0	82.45
S20B1	80	824.70	160.0	80.0	84.30
S20B1	82	844.90	170.0	95.0	92.00
S20B1	84	865.10	170.0	95.0	95.86
S20B1	85	875.20	170.0	95.0	97.83
S20B1	86	885.30	170.0	95.0	99.82
S20B1	88	905.50	170.0	95.0	103.88
S20B1	90	925.70	170.0	95.0	108.03
S20B1	95	976.20	170.0	95.0	118.80
S20B1	96	986.30	170.0	95.0	121.03
S20B1	100	1026.70	180.0	115.0	135.80
S20B1	102	1047.00	180.0	115.0	140.51
S20B1	105	1077.30	180.0	115.0	147.75
S20B1	110	1127.00	180.0	115.0	160.27
S20B1	112	1147.50	180.0	115.0	165.44
S20B1	114	1168.20	180.0	115.0	170.71