NK3730 Needle Roller Bearing Specifications
Bore d (mm)
37
Outer D (mm)
47
Width B (mm)
30
Dynamic rating Cr (kN)
42.5
Static rating Cor (kN)
—
Grease limit speed (r/min)
—
Oil limit speed (r/min)
—
Frequently Asked Questions / FAQ
How do I select the right fit for RAYSDE NK3730?
For NK3730 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 RAYSDE NK3730?
Bore d = 37 mm, outer diameter D = 47 mm, width B = 30 mm — fully compliant with ISO/DIN standard envelope dimensions.
What is RAYSDE NK3730 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 RAYSDE part.
Do you supply CAD or DXF drawings for RAYSDE NK3730?
Yes — 2D drawings, 3D models and full specification sheets are available on request; bulk and customized (non-standard) orders are supported.