Bearing
Brain
Parts Intelligence
Part page
Timken 311K
Deep groove ball · Open
Ø55
Ø120
29
Bore
55 mm
Outside dia
120 mm
Width
29 mm
Dynamic C
71.5 kN
Static C0
44.0 kN
Speed grease
6,000 rpm
Speed oil
8,000 rpm
Clearance
CN
Precision
ABEC-1 (P0)
Weight
2.034 kg
Interactive view — 3D model + CAD files →
Substitution sheet — printable →
Evidence
catalog-search · eligible · eval ship · deterministic executor · partsbrain pull 2026-09-08
Interchange family — 8 records
Part number
Manufacturer
Bore×OD×Width
C
6311
NTN
55×120×29
71.5 kN
6311
KOYO (JTEKT)
55×120×29
71.5 kN
6311
SKF
55×120×29
74.1 kN
6311
NSK
55×120×29
71.5 kN
6311
FAG (Schaeffler)
55×120×29
71.5 kN
311PP
Timken
55×120×29
71.5 kN
311KDD
Timken
55×120×29
71.5 kN
211K
Timken
55×100×21
43.6 kN