#25 Chain Sprockets
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......
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 |
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