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Home / All / Sprockets / Metric Roller Chain Sprockets / ISO 12B Sprockets /

Metric 12B-3 Pilot Bore Stainless Steel Sprockets

BS 12B-3 pilot bore sprockets are designed for use in light industry and can be used to drive or lift or transport materials.

Material	Stainless Steel
Color	Natural
Surface Treatment	Blackening/Galvanizing/Phosphating
Accuracy	Precision teeth for optimum performance
Quality	Superior Metric Sprocket
Interchangeability	Directly interchangeable with other brands

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Detail Information

About Metric 12B Triplex Pilot Bore Stainless Steel Sprocket

CTS® 12B-3 Stainless Steel Chain Sprockets are manufactured for metric 12B-3 roller chains. Precision manufactured from quality stainless steel, our chain sprockets are directly interchangeable with other manufacturers for superior performance and durability. The chart below shows our standard sizes of 12B triple-strand sprockets, we can also make custom sprockets for you if you don't find the exact sprockets you need.

To get a quote on 12B-3 Roller Chain Sprockets or for more information, please contact us and we will be happy to assist you.

Quality Assurance:

ISO9001: 2015 and GB/T24001-2016 / ISO14001: 2015.

Features

High-precision Sprocket
Durable Sprocket
Directly interchangeable with other brands
OEM Sprocket

Metric 12B-3 pilot bore sprocket dimension chart

Metric 12B-3 Pilot Bore Stainless Steel Sprocket Dimension

SPROCKETS 3/4" × 7/16"

For Chain Acc. to DIN 8187

ISO/R 606

Metric 12B-3 pilot bore sprocket teeth dimension chart

Tooth radius r3	16 mm
Radius width C	2 mm
Tooth width b1	10.8 mm
Tooth width B2	30.3 mm
Tooth width B3	49.8 mm

Part No.	No. Teeth	Outside Dia.（de）	Pitch Dia.（dp）	Hub Dia.（dm）	Bore Dia.（D3）	LTB（A）	Weight（Lbs.）
12B-3-8	8	57.6	49.78	31	16	65	0.45
12B-3-9	9	62.0	55.70	37	16	65	0.64
12B-3-10	10	69.0	61.64	42	16	65	0.86
12B-3-11	11	75.0	67.61	47	20	70	1.09
12B-3-12	12	81.5	73.61	53	20	70	1.39
12B-3-13	13	87.5	79.59	59	20	70	1.72
12B-3-14	14	93.6	85.61	65	20	70	2.08
12B-3-15	15	99.8	91.63	71	20	70	2.47
12B-3-16	16	105.5	97.65	77	20	70	2.89
12B-3-17	17	111.5	103.67	83	20	70	3.34
12B-3-18	18	118.0	109.71	89	20	70	3.83
12B-3-19	19	124.2	115.75	95	20	70	4.35
12B-3-20	20	129.7	121.78	100	20	70	4.87
12B-3-21	21	136.0	127.82	100	20	70	5.20
12B-3-22	22	141.8	133.86	100	20	70	5.65
12B-3-23	23	149.0	139.90	110	20	70	6.38
12B-3-24	24	153.9	145.94	110	20	70	6.87
12B-3-25	25	160.0	152.00	120	20	70	7.77
12B-3-26	26	165.9	158.04	120	20	70	8.21
12B-3-27	27	172.3	164.09	120	20	70	8.77
12B-3-28	28	178.0	170.13	120	20	70	9.35
12B-3-29	29	184.1	176.19	120	20	70	9.96
12B-3-30	30	190.5	182.25	120	20	70	10.59
12B-3-31	31	196.3	188.31	130	25	70	11.55
12B-3-32	32	203.3	194.35	130	25	70	12.22
12B-3-33	33	209.3	200.40	130	25	70	12.92
12B-3-34	34	214.6	206.46	130	25	70	13.64
12B-3-35	35	221.0	212.52	130	25	70	14.38
12B-3-36	36	226.8	218.58	130	25	70	15.14
12B-3-37	37	232.9	224.64	130	25	70	15.93
12B-3-38	38	239.0	230.69	130	25	70	16.73
12B-3-39	39	245.1	236.75	130	25	70	17.57
12B-3-40	40	251.3	242.81	130	25	70	18.42
12B-3-41	41	257.3	248.86	*140	25	70	19.47
12B-3-42	42	264.5	254.92	*140	25	70	20.44
12B-3-43	43	270.5	260.98	*140	25	70	21.28
12B-3-44	44	276.5	267.03	*140	25	70	22.13
12B-3-45	45	282.5	273.09	*140	25	70	22.99
12B-3-46	46	287.9	279.15	*140	25	70	24.11
12B-3-47	47	294.0	285.21	*140	25	70	25.04
12B-3-48	48	300.1	291.27	*140	25	70	25.91
12B-3-49	49	306.2	297.33	*140	25	70	26.80
12B-3-50	50	312.3	303.39	*140	25	70	27.87
12B-3-51	51	318.4	309.45	*140	25	70	29.26
12B-3-52	52	324.5	315.51	*140	25	70	30.29
12B-3-53	53	330.5	321.57	*140	25	70	31.33
12B-3-54	54	336.6	327.63	*140	25	70	32.41
12B-3-55	55	342.7	333.69	*140	25	70	33.51
12B-3-56	56	348.7	339.75	*140	25	70	34.60
12B-3-57	57	355.4	345.81	*140	25	70	35.95
12B-3-58	58	361.5	351.87	*140	25	70	37.10
12B-3-59	59	367.5	357.93	*140	25	70	38.27
12B-3-60	60	373.0	363.99	*140	25	70	39.34
12B-3-62	62	385.1	376.12	*140	25	70	41.77
12B-3-64	64	397.2	388.24	*140	25	70	44.27
12B-3-65	65	403.2	394.30	*140	25	70	45.54
12B-3-66	66	409.3	400.36	*140	25	70	46.83
12B-3-68	68	421.4	412.49	*140	25	70	49.51
12B-3-70	70	433.6	424.61	*140	25	70	52.27
12B-3-72	72	447.0	436.73	*140	25	70	55.38
12B-3-75	75	463.9	454.92	*140	25	70	59.44
12B-3-76	76	469.9	460.98	*140	25	70	62.52
12B-3-78	78	482.1	473.10	*140	25	70	65.67
12B-3-80	80	494.2	485.23	*140	25	70	68.87
12B-3-85	85	524.5	515.54	*140	25	70	77.22
12B-3-90	90	554.8	545.85	*140	25	70	86.07
12B-3-95	95	585.1	576.17	*140	25	70	97.85
12B-3-100	100	615.4	606.48	*140	25	70	107.93
12B-3-110	110	676.1	667.11	*140	25	70	129.64
12B-3-114	114	700.6	691.36	*140	25	70	138.98
12B-3-120	120	736.7	727.74	*140	25	70	153.34
12B-3-125	125	767.0	758.06	*140	25	70	165.94