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 |