Action Bearing Co.
201 Brighton Ave., Boston, MA 02134 US
Phone: 800.225.4587 • Fax: 800.252.1996
E-Mail: info@actionbearing.com • Web site: www.actionbearing.com
All Categories > Roller Bearings > Needle Roller Bearings > Heavy Duty Needle Roller Bearings > MR Series Heavy Duty Needle Roller Bearings with Inner Ring > Inner Ring Part No. MI-72  


Inner Ring Part No. MI-72, MR Series Heavy Duty Needle Roller Bearings with Inner Ring
List Price QUOTE

Outer Ring and roller assembly with separable inner ring
Outer ring and roller assemblies and associated inner rings are packed and shipped separately. For a complete bearing, Specify both outer and inner numbers desired.



 Specifications 

Military Standard Number
MS 500072-44

(B) Shaft Diameter
4.5000 in

(B) Dimension Tolerance
+0.0000/-0.0008

(D) Dimension
7.0000 in

(D) Dimension Tolerance
+0.0000/-0.0010

(W) Dimension
3.000 in

(W) Dimension Tolerance
+0.000/-0.005

(W1) Dimension
3.015 in

(W1) Dimension Tolerance
+0.000/-0.005

(H) Hole Dia.
3/16 in

(R) Max. Fillet for Shaft & Housing
0.100 in

Stationary Shaft Dia.
4.4996 in

Stationary Shaft Dia. Tolerance
+0.0000/-0.0010

Rotating Shaft Dia.
4.5008 in

Rotating Shaft Dia. Tolerance
+0.0000/-0.00010

Stationary Housing Bore Dia.
7.0011 in

Stationary Housing Bore Dia. Tolerance
+0.0000/-0.0010
+0.0000/-0.0015

Rotating Housing Bore Dia.
6.9999 in

Rotating Housing Bore Dia. Tolerance
+0.0000/-0.0015

Static Load Rating
220000 lb

Basic Dynamic Rating
85700 lb

Complete Assembly Item #
MR-88