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

Metric 12A-2 Plate Wheel Sprockets

Metric 12A-2 plate wheel sprocket are suitable for all roller chains according to B series.

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 12A Duplex Plate Wheel Sprocket

CTS® metric 12A-2 plate wheel sprockets are suit for the British 12B duplex roller chains. Our 12A duplex sprockets are ISO compliant, with reliable quality and excellent performance. You can see more parameters about the 12A double strand sprockets in the table below.

If you have any questions about Metric A plate wheel sprockets, please feel free to contact us. Our technical staff will be happy to help 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 12A-2 Plate Wheel Sprocket Dimension

SPROCKETS 3/4" × 7/16"

For Chain Acc. to DIN 8187

ISO/R 606

Metric 12A-2 plate wheel sprocket teeth dimension chart

Tooth radius r3	19 mm
Radius width C	2 mm
Tooth width b1	10.8 mm
Tooth width B2	30.3 mm

Part No.	No. Teeth	Outside Dia.（de）	Pitch Dia.（dp）	Bore Dia.（D2）	Weight（Lbs.）
12A-2-8	8	57.6	49.78	12	0.26
12A-2-9	9	62.0	55.70	12	0.36
12A-2-12	10	69.0	61.64	12	0.46
12A-2-11	11	75.0	67.61	14	0.59
12A-2-12	12	81.5	73.61	14	0.72
12A-2-13	13	87.5	79.59	14	0.88
12A-2-14	14	93.6	85.61	14	1.02
12A-2-15	15	99.8	91.63	14	1.20
12A-2-16	16	125.5	97.65	16	1.39
12A-2-17	17	115.5	123.67	16	1.60
12A-2-18	18	118.0	129.71	16	1.81
12A-2-19	19	124.2	115.75	16	2.05
12A-2-20	20	129.7	121.78	16	2.30
12A-2-21	21	136.0	127.82	16	2.53
12A-2-22	22	141.8	133.86	16	2.80
12A-2-23	23	149.0	139.90	16	3.09
12A-2-24	24	153.9	145.94	16	3.39
12A-2-25	25	160.0	152.00	16	3.70
12A-2-26	26	165.9	158.04	20	4.03
12A-2-27	27	172.3	164.09	20	4.38
12A-2-28	28	178.0	170.13	20	4.73
12A-2-29	29	184.1	176.19	20	5.10
12A-2-30	30	190.5	182.25	20	5.49
12A-2-31	31	196.3	188.31	20	5.88
12A-2-32	32	203.3	194.35	20	6.30
12A-2-33	33	209.3	200.40	20	6.72
12A-2-34	34	214.6	206.46	20	7.16
12A-2-35	35	221.0	212.52	20	7.61
12A-2-36	36	226.8	218.58	25	7.99
12A-2-37	37	232.9	224.64	25	8.47
12A-2-38	38	239.0	230.69	25	8.96
12A-2-39	39	245.1	236.75	25	9.50
12A-2-40	40	251.3	242.81	25	9.99
12A-2-41	41	257.3	248.86	25	10.51
12A-2-42	42	264.5	254.92	25	11.07
12A-2-43	43	270.5	260.98	25	11.63
12A-2-44	44	276.5	267.03	25	12.21
12A-2-45	45	282.5	273.09	25	12.80
12A-2-46	46	287.9	279.15	25	13.40
12A-2-47	47	294.0	285.21	25	14.02
12A-2-48	48	300.1	291.27	25	14.65
12A-2-49	49	306.2	297.33	25	15.42
12A-2-50	50	312.3	303.39	25	16.05
12A-2-51	51	318.4	309.45	25	16.68
12A-2-52	52	324.5	315.51	25	17.32
12A-2-53	53	330.5	321.57	25	18.17
12A-2-54	54	336.6	327.63	25	18.85
12A-2-55	55	342.7	333.69	25	19.54
12A-2-56	56	348.7	339.75	25	20.23
12A-2-57	57	355.4	345.81	25	21.02
12A-2-58	58	361.5	351.87	25	21.74
12A-2-59	59	367.5	357.93	25	22.47
12A-2-60	60	373.0	363.99	25	23.41
12A-2-62	62	385.1	376.12	25	24.95
12A-2-64	64	397.2	388.24	25	26.55
12A-2-65	65	403.2	394.30	30	27.35
12A-2-66	66	409.3	400.36	30	28.19
12A-2-68	68	421.4	412.49	30	29.88
12A-2-70	70	433.6	424.61	30	31.63
12A-2-72	72	447.0	436.73	30	33.62
12A-2-75	75	463.9	454.92	30	36.21
12A-2-76	76	469.9	460.98	30	37.98
12A-2-78	78	482.1	473.10	30	39.98
12A-2-80	80	494.2	485.23	30	42.01
12A-2-85	85	524.5	515.54	30	47.83
12A-2-90	90	554.8	545.85	30	53.52
12A-2-95	95	585.1	576.17	30	59.52
12A-2-120	120	615.4	606.48	30	66.55
12A-2-112	112	676.1	667.11	30	80.33
12A-2-114	114	700.6	691.36	30	86.26
12A-2-120	120	736.7	727.74	30	95.38
12A-2-125	125	767.0	758.06	30	103.38