Form Name Input Name URL ID num Number
MyForm Ebox

Internal Clearance

Internal clearance of a ball bearing affects life, noise, vibration and temperature generation, so it is extremely important to select the optimum radial clearance for each application. The different types of internal clearance of ball bearing are:
radial clearance; axial clearance; and moment clearance.
 
1.Radial Clearance (Gr)
2.Axial Clearance (Gt)
3.Moment Clearance (θ)

(Please place the mouse cursor over each item to show a diagram)



Radial Clearance Standard for NMB Part Numbers
Radial Clearance Code P13 P24 (Standard)
P25		 P58
Dimensions in µm 2.5-7.5 5-10 5-12.5 12.5-20
Dimensions in inches 0.0001-0.0003 0.0002-0.0004 0.0002-0.0005 0.0005-0.0008

Raidal Clearance Standard for NMB Part Numbers (JIS Series Bearings only)
Radial Clearance Code M2 (Standard)
M3		 M4 M5
Dimensions in µm 3-8 5-10 8-13 13-20
Dimensions in inches 0.0001-0.0003 0.0002-0.0004 0.0003-0.0005 0.0005-0.0008




Back to top

  NMB Copyright 2002-2008 Minebea Co., Ltd.