12B-1B&2B&3B

Name: 12B-1B&2B&3B
Brand: CORF TECHNOLOGY
Availability: InStock
Rating: 5 (1 reviews)

12B | 3/4" x 7/16" | 19,05 x 11,68 mm | Roller 12,07 mm

CORF sprockets (Type B & Type C) with pilot bore meet strict European (EN) standards for precision, durability, and alignment in industrial power transmission, conveyors, and machinery. Customizable, premium-built, and quality-checked for reliable performance.

Features

Hub Extensions: Type B (hub extension – one side) / Type C (hub extension – both sides) for varied load/space needs.
Customizable: Client-approved drawings; fits multi-standards (ANSI, DIN, JIS, BS, SATI/MARTIN).
Materials: Steels (C45, SS304/316, 40Cr), engineering plastics (POM, PA6), brass, cast iron—matched to your application.

Durability: Advanced heat treatment (hardened teeth, carburizing) + surface finishes (black oxide, nickel plating) for wear/corrosion resistance.
Quality: 100% inspection at every stage ensures reliability.

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Description

Tooth width B1	11,1
Tooth width B2	30,3
Tooth width B3	49,8
Tooth width b1	10,8
Radius width C	2
Tooth radius r3	19

z	de	dp	Simplex					Duplex					Triplex
z	de	dp	CORF Code	dm	D1	A	kg/pc	CORF Code	dm	D2	A	kg/pc	CORF Code	dm	D3	A	kg/pc
8	58.0	49.78	12B1Z8	31	12	30	0.21	12B2Z8	31	12	45	0.31	12B3Z8	31	16	65	0.45
9	63.9	55.70	12B1Z9	37	12	30	0.29	12B2Z9	37	12	45	0.44	12B3Z9	37	16	65	0.64
10	69.8	61.64	12B1Z10	42	12	30	0.38	12B2Z10	42	12	45	0.59	12B3Z10	42	16	65	0.86
11	75.8	67.61	12B1Z11	46	16	35	0.51	12B2Z11	47	16	50	0.81	12B3Z11	47	20	70	1.09
12	81.8	73.60	12B1Z12	52	16	35	0.65	12B2Z12	53	16	50	1.02	12B3Z12	53	20	70	1.39
13	87.8	79.59	12B1Z13	58	16	35	0.80	12B2Z13	59	16	50	1.25	12B3Z13	59	20	70	1.72
14	93.8	85.61	12B1Z14	64	16	35	0.97	12B2Z14	65	16	50	1.46	12B3Z14	65	20	70	2.08
15	99.8	91.63	12B1Z15	70	16	35	1.16	12B2Z15	71	16	50	1.74	12B3Z15	71	20	70	2.47
16	105.8	97.65	12B1Z16	75	16	35	1.34	12B2Z16	77	20	50	2.03	12B3Z16	77	20	70	2.89
17	111.9	103.67	12B1Z17	80	16	35	1.53	12B2Z17	83	20	50	2.36	12B3Z17	83	20	70	3.34
18	117.9	109.71	12B1Z18	80	16	35	1.62	12B2Z18	89	20	50	2.70	12B3Z18	89	20	70	3.83
19	123.9	115.75	12B1Z19	80	16	35	1.70	12B2Z19	95	20	50	3.07	12B3Z19	95	20	70	4.35
20	130.0	121.78	12B1Z20	80	16	35	1.80	12B2Z20	100	20	50	3.43	12B3Z20	100	20	70	4.87
21	136.0	127.82	12B1Z21	90	20	40	2.35	12B2Z21	100	20	50	3.69	12B3Z21	100	20	70	5.20
22	142.0	133.86	12B1Z22	90	20	40	2.46	12B2Z22	100	20	50	3.97	12B3Z22	100	20	70	5.65
23	148.1	139.90	12B1Z23	90	20	40	2.56	12B2Z23	110	20	50	4.51	12B3Z23	110	20	70	6.38
24	154.1	145.94	12B1Z24	90	20	40	2.68	12B2Z24	110	20	50	4.81	12B3Z24	110	20	70	6.87
25	160.2	152.00	12B1Z25	90	20	40	2.80	12B2Z25	120	20	50	5.41	12B3Z25	120	20	70	7.77
26	166.2	158.04	12B1Z26	95	20	40	3.08	12B2Z26	120	20	50	5.73	12B3Z26	120	20	70	8.21
27	172.3	164.09	12B1Z27	95	20	40	3.21	12B2Z27	120	20	50	6.08	12B3Z27	120	20	70	8.77
28	178.3	170.13	12B1Z28	95	20	40	3.34	12B2Z28	120	20	50	6.43	12B3Z28	120	20	70	9.35
29	184.4	176.19	12B1Z29	95	20	40	3.48	12B2Z29	120	20	50	6.80	12B3Z29	120	20	70	9.96
30	190.4	182.25	12B1Z30	95	20	40	3.63	12B2Z30	120	20	50	7.19	12B3Z30	120	20	70	10.59
31	196.5	188.31	12B1Z31	95	20	40	3.78	12B2Z31	120	20	50	7.59	12B3Z31	130	25	70	11.55
32	202.5	194.35	12B1Z32	95	20	40	3.93	12B2Z32	120	20	50	8.00	12B3Z32	130	25	70	12.22
33	208.6	200.40	12B1Z33	95	20	40	4.09	12B2Z33	120	20	50	8.42	12B3Z33	130	25	70	12.92
34	214.6	206.46	12B1Z34	95	20	40	4.25	12B2Z34	120	20	50	8.86	12B3Z34	130	25	70	13.64
35	220.7	212.52	12B1Z35	95	20	40	4.42	12B2Z35	120	20	50	9.31	12B3Z35	130	25	70	14.38
36	226.8	218.58	12B1Z36	100	20	40	4.71	12B2Z36	120	25	50	9.71	12B3Z36	130	25	70	15.14
37	232.8	224.64	12B1Z37	100	20	40	4.89	12B2Z37	120	25	50	10.19	12B3Z37	130	25	70	15.93
38	238.9	230.69	12B1Z38	100	20	40	5.07	12B2Z38	120	25	50	10.78	12B3Z38	130	25	70	16.73
39	244.9	236.75	12B1Z39	100	20	40	5.26	12B2Z39	120	25	50	11.19	12B3Z39	130	25	70	17.57
40	251.0	242.81	12B1Z40	100	20	40	5.46	12B2Z40	120	25	50	11.71	12B3Z40	130	25	70	18.42
42	265.0	254.93	12B1Z42	*118	25	61	8.14	12B2Z42	*136	25	62	14.51	12B3Z42
45	283.2	273.10	12B1Z45	*118	25	61	8.85	12B2Z45	*136	25	62	16.35	12B3Z45	*140	25	72	23.55
46	289.2	279.16	12B1Z46	*118	25	61	9.22	12B2Z46	*136	25	62	16.80	12B3Z46
48	301.4	291.27	12B1Z48	*118	25	61	9.67	12B2Z48	*136	25	62	18.18	12B3Z48
50	313.5	303.39	12B1Z50	*118	25	61	10.15	12B2Z50	*136	25	62	19.44	12B3Z50	*140	25	72	28.73
55	343.8	333.70	12B1Z55	*118	25	61	11.29	12B2Z55					12B3Z55
57	355.9	345.81	12B1Z57	*118	25	61	11.85	12B2Z57	*136	25	62	24.43	12B3Z57	*140	30	72	37.16
60	374.1	363.99	12B1Z60	*118	25	61	12.71	12B2Z60	*136	25	62	26.77	12B3Z60	*140	30	72	41.01
76	471.1	460.99	12B1Z76	*118	30	61	18.02	12B2Z76	*145	30	63	41.88	12B3Z76	*150	30	72	65.41
95	586.2	576.17	12B1Z95	*133	30	62	27.45	12B2Z95	*145	30	63	63.79	12B3Z95	*150	30	72	101.37

12B-1B&2B&3B

12B | 3/4" x 7/16" | 19,05 x 11,68 mm | Roller 12,07 mm

Features

Description

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