Bearing
Brain
Parts Intelligence
Part page
NTN 306
Deep groove ball · Open
Ø30
Ø72
19
Bore
30 mm
Outside dia
72 mm
Width
19 mm
Dynamic C
29.7 kN
Static C0
21.6 kN
Speed grease
18,000 rpm
Speed oil
11,000 rpm
Clearance
CN (Normal)
Precision
ABEC-1 (P0)
Weight
0.502 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
306
KOYO (JTEKT)
30×72×19
29.7 kN
306
INA (Schaeffler)
30×72×19
29.7 kN
306
MinebeaMitsumi (NMB)
30×72×19
29.7 kN
306
Nachi Fujikoshi
30×72×19
29.7 kN
306
FAG (Schaeffler)
30×72×19
29.7 kN
306
Timken
30×72×19
29.7 kN
306
RBC Bearings
30×72×19
29.7 kN
306
Peer Bearing
30×72×19
29.7 kN