Komatsu WA250-1LC Wheel Loader Shop Service Repair Manual
We 90 Bore Diameter (mm) Provide Extensive Leader Hydraulic Pump Co.,Limited. Komatsu WA250-1LC Wheel Loader Shop Service Repair Manual 90x55x18 Selection And Competitive Wholesale Pricing.
| Min.Order Quantity |
1 pcs |
| Price |
Negotiable |
Product Details
| Bearing number | 7011 CB/P4A |
| Size (mm) | 90x55x18 |
| Bore Diameter (mm) | 90 |
| Outer Diameter (mm) | 55 |
| Width (mm) | 18 |
| d | 55 mm |
| D | 90 mm |
| B | 18 mm |
| d1 | 68.18 mm |
| d2 | 66.65 mm |
| D2 | 79.39 mm |
| r1,2 - min. | 1.1 mm |
| r3,4 - min. | 0.6 mm |
| a | 18.8 mm |
| da - min. | 61 mm |
| db - min. | 61 mm |
| Da - max. | 84 mm |
| Db - max. | 86.8 mm |
| ra - max. | 1 mm |
| rb - max. | 0.6 mm |
| dn | 69.2 mm |
| Basic dynamic load rating - C | 14 kN |
| Basic static load rating - C0 | 11 kN |
| Fatigue load limit - Pu | 0.465 kN |
| Limiting speed for grease lubrication | 22000 r/min |
| Limiting speed for oil lubrication | 32000 mm/min |
| Ball - Dw | 6.747 mm |
| Ball - z | 26 |
| Gref | 4.69 cm3 |
| Calculation factor - f0 | 9.7 |
| Preload class A - GA | 46 N |
| Preload class B - GB | 92 N |
| Preload class C - GC | 275 N |
| Calculation factor - f | 1 |
| Calculation factor - f2A | 1 |
| Calculation factor - f2B | 1.02 |
| Calculation factor - f2C | 1.05 |
| Calculation factor - fHC | 1 |
| Preload class A | 38 N/micron |
| Preload class B | 50 N/micron |
| Preload class C | 80 N/micron |
| r1,2 min. | 1.1 mm |
| r3,4 min. | 0.6 mm |
| da min. | 61 mm |
| db min. | 61 mm |
| Da max. | 84 mm |
| Db max. | 86.8 mm |
| ra max. | 1 mm |
| rb max. | 0.6 mm |
| Basic dynamic load rating C | 18.6 kN |
| Basic static load rating C0 | 19 kN |
| Fatigue load limit Pu | 0.465 kN |
| Attainable speed for grease lubrication | 22000 r/min |
| Attainable speed for oil-air lubrication | 32000 r/min |
| Ball diameter Dw | 6.747 mm |
| Number of balls z | 26 |
| Reference grease quantity Gref | 4.69 cm³ |
| Preload class A GA | 46 N |
| Static axial stiffness, preload class A | 38 N/µm |
| Preload class B GB | 92 N |
| Static axial stiffness, preload class B | 50 N/µm |
| Preload class C GC | 275 N |
| Static axial stiffness, preload class C | 80 N/µm |
| Calculation factor f | 1.06 |
| Calculation factor f1 | 1 |
| Calculation factor f2A | 1 |
| Calculation factor f2B | 1.02 |
| Calculation factor f2C | 1.05 |
| Calculation factor fHC | 1 |
| Calculation factor f0 | 9.7 |
| Mass bearing | 0.42 kg |
Company Profile
| Worktime |
9:00-18:00(Beijing time) |
| Phone |
00852-68515715 |
| Fax |
00852-68515716 |
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