3381/3320 Tapered Roller Bearing Specifications
Bore d (mm)
38.1
Outer D (mm)
80.167
Width B (mm)
29.37
Dynamic rating Cr (kN)
106
Static rating Cor (kN)
129
Grease limit speed (r/min)
—
Oil limit speed (r/min)
—
Frequently Asked Questions / FAQ
How do I select the right fit for RUIST 3381/3320?
For 3381/3320 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 3381/3320?
Bore d = 38.1 mm, outer diameter D = 80.167 mm, width B = 29.37 mm — fully compliant with ISO/DIN standard envelope dimensions.
What is RUIST 3381/3320 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 3381/3320?
Yes — 2D drawings, 3D models and full specification sheets are available on request; bulk and customized (non-standard) orders are supported.