51315 Bearing Specifications
Bore d (mm)
75
Outer D (mm)
135
Width B (mm)
44
Dynamic rating Cr (kN)
159
Static rating Cor (kN)
365
Grease limit speed (r/min)
1300
Oil limit speed (r/min)
1900
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 51315?
RUIST 51315 Bearing: bore d = 75 mm, outer diameter D = 135 mm, width/height B = 44 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 51315 carry?
Dynamic load rating Cr = 159 kN and static load rating Cor = 365 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 51315 typically used?
Bearing of this size are common in electric motors, gearboxes, pumps, conveyors, fans and compressors across heavy-industry plants.
Can RUIST 51315 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 75 mm, OD 135 mm and width 44 mm match ISO dimensions, 51315 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.