25581/25521 Tapered Roller Bearing Specifications
Bore d (mm)
44.45
Outer D (mm)
83.058
Width B (mm)
23.812
Dynamic rating Cr (kN)
83.8
Static rating Cor (kN)
111
Grease limit speed (r/min)
—
Oil limit speed (r/min)
—
Frequently Asked Questions / FAQ
How do I select the right fit for RUIST 25581/25521?
For 25581/25521 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 25581/25521?
Bore d = 44.45 mm, outer diameter D = 83.058 mm, width B = 23.812 mm — fully compliant with ISO/DIN standard envelope dimensions.
What is RUIST 25581/25521 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 25581/25521?
Yes — 2D drawings, 3D models and full specification sheets are available on request; bulk and customized (non-standard) orders are supported.