28B-2 roller chain sprockets are manufactured for metric 28B-2 roller chain and is manufactured in accordance with ISO, DIN, and BS228 standards. All of our sprockets are precision manufactured from high-quality steel, and the majority of them are black oxide coated, and have hardened teeth on tooth counts 30 or less. Something important to know note is that on tooth counts 31 and up hardened teeth make little to no performance increase, this is why it is not standard.
| Sprocket Size | Tooth Count | Pitch Diameter | Stock Bore | Max. Bore | Hub Diameter (H) | Length Thru Bore (L) | Weight (kg) |
|---|---|---|---|---|---|---|---|
| D28B11 | 11 | 157.77mm | 40mm | 73mm | 112mm | 120mm | 10.21 |
| D28B12 | 12 | 171.74mm | 40mm | 84mm | 125mm | 120mm | 13.02 |
| D28B13 | 13 | 185.74mm | 40mm | 84mm | 130mm | 120mm | 16.00 |
| D28B14 | 14 | 199.76mm | 40mm | 84mm | 135mm | 120mm | 19.28 |
| D28B15 | 15 | 213.79mm | 40mm | 87mm | 145mm | 120mm | 22.91 |
| D28B16 | 16 | 227.84mm | 40mm | 96mm | 160mm | 120mm | 26.92 |
| D28B17 | 17 | 241.91mm | 40mm | 108mm | 178mm | 120mm | 30.83 |
| D28B18 | 18 | 255.98mm | 40mm | 114mm | 178mm | 120mm | 34.74 |
| D28B19 | 19 | 270.06mm | 40mm | 114mm | 178mm | 120mm | 38.93 |
| D28B20 | 20 | 284.14mm | 40mm | 133mm | 178mm | 120mm | 44.27 |
| D28B21 | 21 | 298.24mm | 40mm | 133mm | 178mm | 120mm | 45.08 |
| D28B22 | 22 | 312.34mm | 40mm | 133mm | 178mm | 120mm | 48.15 |
| D28B23 | 23 | 326.44mm | 40mm | 133mm | 178mm | 120mm | 51.59 |
| D28B24 | 24 | 340.54mm | 40mm | 133mm | 178mm | 120mm | 55.03 |
| D28B25 | 25 | 354.65mm | 40mm | 133mm | 178mm | 120mm | 58.47 |
| D28B26 | 26 | 368.77mm | 40mm | 133mm | 178mm | 120mm | 64.06 |
| D28B28 | 28 | 397.00mm | 40mm | 133mm | 178mm | 120mm | 76.05 |
| D28B30 | 30 | 425.24mm | 40mm | 133mm | 178mm | 120mm | 89.16 |
| D28B32 | 32 | 453.49mm | 40mm | 133mm | 178mm | 120mm | 103.38 |
| Sprocket Size | Tooth Count | Pitch Diameter | Stock Bore | Max. Bore | Hub Diameter (H) | Length Thru Bore (L) | Weight (kg) |
|---|---|---|---|---|---|---|---|
| D28B11 | 11 | 157.77mm | 40mm | 73mm | 112mm | 120mm | 10.21 |
| D28B12 | 12 | 171.74mm | 40mm | 84mm | 125mm | 120mm | 13.02 |
| D28B13 | 13 | 185.74mm | 40mm | 84mm | 130mm | 120mm | 16.00 |
| D28B14 | 14 | 199.76mm | 40mm | 84mm | 135mm | 120mm | 19.28 |
| D28B15 | 15 | 213.79mm | 40mm | 87mm | 145mm | 120mm | 22.91 |
| D28B16 | 16 | 227.84mm | 40mm | 96mm | 160mm | 120mm | 26.92 |
| D28B17 | 17 | 241.91mm | 40mm | 108mm | 178mm | 120mm | 30.83 |
| D28B18 | 18 | 255.98mm | 40mm | 114mm | 178mm | 120mm | 34.74 |
| D28B19 | 19 | 270.06mm | 40mm | 114mm | 178mm | 120mm | 38.93 |
| D28B20 | 20 | 284.14mm | 40mm | 133mm | 178mm | 120mm | 44.27 |
| D28B21 | 21 | 298.24mm | 40mm | 133mm | 178mm | 120mm | 45.08 |
| D28B22 | 22 | 312.34mm | 40mm | 133mm | 178mm | 120mm | 48.15 |
| D28B23 | 23 | 326.44mm | 40mm | 133mm | 178mm | 120mm | 51.59 |
| D28B24 | 24 | 340.54mm | 40mm | 133mm | 178mm | 120mm | 55.03 |
| D28B25 | 25 | 354.65mm | 40mm | 133mm | 178mm | 120mm | 58.47 |
| D28B26 | 26 | 368.77mm | 40mm | 133mm | 178mm | 120mm | 64.06 |
| D28B28 | 28 | 397.00mm | 40mm | 133mm | 178mm | 120mm | 76.05 |
| D28B30 | 30 | 425.24mm | 40mm | 133mm | 178mm | 120mm | 89.16 |
| D28B32 | 32 | 453.49mm | 40mm | 133mm | 178mm | 120mm | 103.38 |
Services we can provide
1. Produce strictly following standard dimension
2. Material: 1045 Steel / Alloy Steel / Stainless Steel 304 & 316
3. Standard: ANSI, DIN, JINS, ISO, KANA, Standard America, or customer's drawing
4. Pilot bore, finished bore, taper bore, and special bore.
5. Bright surface / high precision / Blacking /Electrophoretic-Coated
6. Advanced heat treatment and surface treatment craft
7. Best quality and competitive price.
8. Welcome OEM / ODM
9. Processing Equipment: Hobbing machine, Slotting machine, CNC lathes, and other equipment.
10. Sprocket Models: Contains special sprocket according to customer's drawings, standard sprocket (American standard and metric).
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Address
No. 218, Gaoqing Road, Qingshanhu Street, Lin'an District, Hangzhou City, Zhejiang Province, China
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