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

Metric 12B-3 Pilot Bore 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	Carbon 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 Sprocket

CTS® 12B-3 Roller Chain Sprockets are manufactured for metric 12B-3 roller chains. Precision manufactured from quality steel, our chain sprockets are directly interchangeable with other manufacturers for superior performance and durability. The chart below shows our standard sizes of 12 B hub 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 Sprocket Technical Data

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