| Bicycle Headset Bearing | ||||
| Item | ID(mm) | OD(mm) | Width(mm) | Remarks |
| MH-P03 | 30.15 | 41 | 6.5 | 45°/45° |
| MH-P03K | 30.15 | 41 | 6.5 | 36°/45° |
| MH-P04 | 30.15 | 39 | 6.5 | 45°/45° |
| MH-P08 | 30.15 | 41.8 | 6.5 | 45°/45° |
| MH-P08/W7 | 30.15 | 41.8 | 7 | 45°/45° |
| MH-P09K | 27.15 | 38 | 6.5 | 36°/45° |
| MH-P15 | 33.05 | 43.8 | 7 | 45°/45° |
| MH-P16 | 40 | 52 | 7 | 45°/45° |
| ACB336 | 30.15 | 41 | 6.5 | 36°/45° |
| ACB345 | 30.15 | 41 | 6.5 | 45°/45° |
| ACB418 | 30.15 | 41.8 | 6.5 | 45°/45° |
| ACB845 | 30.15 | 41.8 | 6.5 | 45°/45° |
| ACB418H7 | 30.15 | 41.8 | 7 | 45°/45° |
| ACB845H8 | 30.15 | 41.8 | 8 | 36°/45° |
| ACB845F | 30.15 | 41.8 | 8 | Inner Ring with step |
| ACB460 | 34.1 | 46 | 7 | 45°/45° |
| ACB469 | 34.1 | 46.9 | 7 | 45°/45° |
| ACB25K | 40 | 52 | 6.5 | 36°/45° |
| ACB518K | 40 | 51.8 | 8 | 36°/45° |
| ACB520* | 40 | 52 | 6.5 | 36°/45° |
| ACB520.H7 | 40 | 52 | 7 | 45°/45° |
| ACB520.H8 | 40 | 52 | 8 | 45°/45° |
| ACB410.H7 | 30.15 | 41 | 7 | 45°/45° |
| ACB4052 | 40 | 52 | 7 | 45°/45° |
| ACB4052H8 | 40 | 52 | 8 | 45°/45° |
| ACB37469 | 37 | 46.9 | 7 | 45°/45° |
| ACB3749S | 37 | 49 | 7 | 45°/45° |
| ACB3749 | 37 | 49 | 7 | 45°/45° |
| ACB32438-2RS | 32.4 | 43.8 | 7 | 45°/45° |
| B543-2RS | 39.7 | 50.8 | 7.14 | Max 45°/45° |
| MR19285-2RS | 19 | 28 | 5 | |
| 6806ZZ/2RS | 30 | 42 | 7 | |
| 6807-2RS | 35 | 47 | 7 | |
| 6808-2RS | 40 | 52 | 7 | |






Ningbo Mashi Industries Co., Ltd. is a professional Bearing & Precision Machined Parts manufacturing company in China. Customized designs and ODM/OEM are offered to meet the customer's needs.
We are a reliable bearing supplier to the industries of Home appliances, Electric motors, Automobile, Motorcycles, Bike, OA devices, Power tools, Hardware, Sliding Screen Door Rollers, Toys, Furniture, Medical / Dental, Fishing Reel, Mold and Transmission industry etc.
Guaranteed quality and competitive price. Contact us now for quote and samples.








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