#25 Chain Sprockets

Discover Raydafon Group's #25 Chain Sprockets—durable, precision-engineered components for smooth machinery operation in industrial and DIY settings. Crafted from high-strength steel, they offer superior wear resistance and quiet performance, ideal for engineers, hobbyists, and maintenance professionals. Experience enhanced reliability and efficiency, solving alignment and wear issues with our unique heat-treated design. Choose Raydafon Group for trusted quality that powers your projects forward.

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Product Description

Put your trust in our quality-assurance process with #25 roller chain sprockets from USA Roller Chain. Plastic, stainless steel and black-oxide-coated hardened metal are the materials of choice in our stock. We're pleased to support many different industries, including government entities, small businesses, OEMs and major resellers. Every top configuration can be found in our inventory. Look for 25 roller chain sprockets with A-plate or B-hub configurations. Each #25 sprocket comes with precision teeth so that your assembly keeps moving through the workday.

#25 A-Plate Sprockets

Sprocket Size	Tooth Count	Type	Outside Diameter	Stock Bore	Weight (LBS)
25A18	18	A	1.568"	1/4	0.04
25A19	19	A	1.648"	1/4	0.04
25A20	20	A	1.729"	1/4	0.04
25A21	21	A	1.809"	3/8	0.04
25A22	22	A	1.889"	3/8	0.06
25A23	23	A	1.969"	3/8	0.06
25A24	24	A	2.049"	3/8	0.08
25A25	25	A	2.129"	3/8	0.08
25A26	26	A	2.209"	3/8	0.09
25A28	28	A	2.369"	3/8	0.10
25A30	30	A	2.529"	3/8	0.12
25A32	32	A	2.688"	3/8	0.14
25A35	35	A	--	3/8	0.16
25A36	36	A	3.008"	3/8	0.18
25A40	40	A	3.327"	1/2	0.20
25A42	42	A	--	1/2	0.24
25A45	45	A	3.725"	1/2	0.25
25A48	48	A	3.964"	1/2	0.32
25A54	54	A	4.442"	1/2	0.38
25A60	60	A	4.920"	1/2	0.54
25A72	72	A	5.876"	1/2	0.74

#25 B-Hub Sprockets

Sprocket Size	Tooth Count	Type	Outside Diameter	Stock Bore	Recommend Max. Bore	Hub Diameter	Length Thru Bore	Weight (LBS)
25B10	10	B	0.919"	1/4	1/4	1/2	1/2	0.03
25B11	11	B	1.002"	1/4	5/16	9/16	1/2	0.04
25B12	12	B	1.083"	1/4	3/8	5/8	1/2	0.06
25B13	13	B	1.167"	1/4	7/16	23/32	1/2	0.07
25B14	14	B	1.246"	1/4	9/16	13/16	1/2	0.08
25B15	15	B	1.326"	1/4	9/16	57/64	1/2	0.10
25B16	16	B	1.407"	1/4	9/16	31/32	1/2	0.12
25B17	17	B	1.487"	1/4	5/8	1-1/32	1/2	0.14
25B18	18	B	1.568"	1/4	3/4	1-1/8	1/2	0.16
25B19	19	B	1.648"	1/4	13/16	1-7/32	1/2	0.19
25B20	20	B	1.729"	1/4	7/8	1-9/32	5/8	0.25
25B21	21	B	1.809"	1/4	7/8	1-3/8	5/8	0.28
25B22	22	B	1.889"	1/4	15/16	1-7/16	5/8	0.31
25B23	23	B	1.969"	1/4	1	1-1/2	5/8	0.32
25B24	24	B	2.049"	3/8	1	1-1/2	5/8	0.33
25B25	25	B	2.129"	3/8	1	1-1/2	5/8	0.34
25B26	26	B	2.209"	3/8	1	1-1/2	5/8	0.35
25B28	28	B	2.369"	3/8	1	1-1/2	5/8	0.36
25B30	30	B	2.529"	3/8	1	1-1/2	5/8	0.38
25B32	32	B	2.688"	3/8	1	1-1/2	5/8	0.40
25B36	36	B	3.008"	3/8	1	1-1/2	3/4	0.50
25B40	40	B	3.327"	1/2	1-3/8	2	3/4	0.53
25B45	45	B	3.725"	1/2	1-3/8	2	3/4	0.56
25B48	48	B	3.964"	1/2	1-3/8	2	3/4	0.56
25B54	54	B	4.442"	1/2	1-3/8	2	3/4	1.00
25B60	60	B	4.920"	1/2	1-3/8	2	3/4	1.10
25B70	70	B	5.717"	1/2	1-3/8	2	3/4	1.25
25B72	72	B	5.876"	1/2	1-3/8	2	3/4	1.30