NNU4936MBKR Cylindrical Roller Bearing Specifications
Bore d (mm)
180
Outer D (mm)
250
Width B (mm)
69
Dynamic rating Cr (kN)
550
Static rating Cor (kN)
1020
Grease limit speed (r/min)
3500
Oil limit speed (r/min)
4200
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST NNU4936MBKR?
RUIST NNU4936MBKR Cylindrical Roller Bearing: bore d = 180 mm, outer diameter D = 250 mm, width/height B = 69 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST NNU4936MBKR carry?
Dynamic load rating Cr = 550 kN and static load rating Cor = 1020 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST NNU4936MBKR typically used?
Cylindrical Roller Bearing of this size are common in electric motors, gearboxes, pumps, conveyors, fans and compressors across heavy-industry plants.
Can RUIST NNU4936MBKR replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 180 mm, OD 250 mm and width 69 mm match ISO dimensions, NNU4936MBKR is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.