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 without Inner Ring > Complete Assembly Item # MR-56  


Complete Assembly Item # MR-56, MR Series Heavy Duty Needle Roller Bearings without Inner Ring
List Price QUOTE

Outer ring and roller assembly without separable inner ring
The outer ring and roller assemblies (MR) shown in this table are for use without inner rings on a ground shaft for which a minimum hardness of 58 Rockwell "C" scale is recommended.



 Specifications 

Military Standard Number
MS 51961-42

(S) Shaft Diameter
3.5000 in

(S) Shaft Dia. Tolerance
+0.0000/-0.0004

(D) Dimension
4.5000 in

(D) Dimension Tolerance
+0.0000/-0.0008

(W) Dimension
2.000 in

(W) Dimension Tolerance
+0.000/-0.005

(H) Hole Dia.
3/16 in

(R) Max. Fillet for Housing
0.080 in

Stationary Housing Bore Dia.
4.5008 in

Stationary Housing Bore Dia. Tolerance
+0.0000/-0.0010

Rotating Housing Bore Dia.
4.4995 in

Rotating Housing Bore Dia. Tolerance
+0.0000/-0.0010

Static Load Rating
83500 lb

Basic Dynamic Rating
35900 lb