NNU4936MB 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
How do I select the right fit for RUIST NNU4936MB?
For NNU4936MB we recommend shaft tolerance k6/m6 on the inner ring and housing tolerance H7/J7 on the outer ring. Proper fits prevent creep and extend service life.
What is the bore, OD and width of RUIST NNU4936MB?
Bore d = 180 mm, outer diameter D = 250 mm, width B = 69 mm — fully compliant with ISO/DIN standard envelope dimensions.
What is RUIST NNU4936MB made of and what certifications apply?
Manufactured from hardened GCr15 bearing steel with ISO 9001 / IATF 16949 controlled processes; available with OEM branding or as a neutral RUIST part.
Do you supply CAD or DXF drawings for RUIST NNU4936MB?
Yes — 2D drawings, 3D models and full specification sheets are available on request; bulk and customized (non-standard) orders are supported.