M257149D/M257110/M257110D NSK Double Row Double Row Bearings
| Brand Name: | NSK |
| Model Number: | M257149D/M257110/M257110D |
| d: | 20 mm |
| D: | 52 mm |
| B: | 15 mm |
| d1 ≈: | 33.15 mm |
| d2 ≈: | 26.75 mm |
| D2 ≈: | 41.55 mm |
| a: | 22.8 mm |
| r1,2 min.: | 1.1 mm |
Product Details
| d | 20 mm |
| D | 52 mm |
| B | 15 mm |
| d1 ≈ | 33.15 mm |
| d2 ≈ | 26.75 mm |
| D2 ≈ | 41.55 mm |
| a | 22.8 mm |
| r1,2 min. | 1.1 mm |
| r3,4 min. | 0.6 mm |
| da min. | 27 mm |
| da max. | 30.5 mm |
| Da max. | 45 mm |
| Db max. | 47.8 mm |
| ra max. | 1 mm |
| rb max. | 0.6 mm |
| Basic dynamic load rating C | 17.4 kN |
| Basic static load rating C0 | 9.5 kN |
| Fatigue load limit Pu | 0.4 kN |
| Reference speed | 17000 r/min |
| Limiting speed | 13000 r/min |
| Calculation factor A | 0.00191 |
| Calculation factor kr | 0.1 |
| Calculation factor e | 1.14 |
| Calculation factor X | 0.57 |
| Calculation factor Y0 | 0.52 |
| Calculation factor Y2 | 0.93 |
| Calculation factor Y1 | 0.55 |
| Standard grease | GXN |
| Mass bearing | 0.14 kg |
Company Profile
| Worktime |
9:00-18:00(BeiJing time) |
| Phone |
86-13563849567 |
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