Guizhou GZG Transmission Co., Limited is one of the leading manufacturers and suppliers of 12b 16b 20b european standard chain sprocket in China, featured by quality products and good price. If you're going to buy durable 12b 16b 20b european standard chain sprocket made in China, welcome to get free sample from our factory. We also accept customized orders.

Products Description

12B,16B,20B European standard sprockets are vital power‑transmission parts that pair with roller chains to transfer torque across machinery shafts.
We offer sprockets in 45# steel, stainless steel and cast iron.
45‑steel sprockets are widely used for great strength and wear resistance.
Stainless steel resists corrosion and high temperatures, ideal for food‑grade equipment.
Cast iron works well for heavy‑load conveyor systems.
Choose simplex, duplex or triplex sprockets to match your load:
simplex for light‑to‑medium loads, duplex for higher loads, triplex for the heaviest‑duty jobs.
Custom sizes are available.

Simplex

Duplex

Triplex

Products parameters

							12B-1-2
							NOTE	mm
							Pitch	19.05
							Roller Φ	12.07
							h	11.1
							h1	10.8
							h2	30.3
							Dimensions: mm
Teeth	OD	Bore:d	Type B Simplex		Type B Duplex			Material
			Hub		Hub		Bore:d
			BD	BL	BD	BL	Bore:d
8	57.6	12	31	30	31	45	12	C45
9	62.0	12	37	30	37	45	12
10	69.0	12	42	30	42	45	12
11	75.0	14	46	35	47	50	16
20	129.7	16	80	35	100	50	20

							16B-1-2
							NOTE	mm
							Pitch	25.4
							Roller Φ	15.88
							h	16.2
							h1	15.8
							h2	47.7
							Dimensions: mm
Teeth	OD	Bore:d	Type B Simplex		Type B Duplex			Material
			Hub		Hub		Bore:d
			BD	BL	BD	BL	Bore:d
21	181.2	20	110	50	130	70	25	C45
22	189.3	20	110	50	130	70	25
23	197.5	20	110	50	130	70	25
24	205.5	20	110	50	130	70	25
25	213.5	20	110	50	130	70	25
30	254.0	20	120	50	130	70	25

							20B-1-2
							NOTE	mm
							Pitch	31.75
							Roller Φ	19.05
							h	18.5
							h1	18.2
							h2	54.6
							Dimensions: mm
Teeth	OD	Bore:d	Type B Simplex		Type B Duplex			Material
			Hub		Hub		Bore:d
			BD	BL	BD	BL	Bore:d
31	329.0	25	150	55	150	80	25	C45
32	339.1	25	150	55	150	80	25
33	349.2	25	150	55	150	80	25
34	359.3	25	150	55	150	80	25
35	369.4	25	150	55	150	80	25
95	975.2	30	168	93	200	116	40