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Emerson Bearing Company
201 Brighton Avenue
Boston, MA 02134
Phone: (800) 225-4587 • Fax: (800) 252-1996
Email: info@emersonbearing.com
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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.
MR series Without Ring
Unit of Measure
Items MR series Without Ring
MR-10-N
MR Series Heavy Duty Needle Roller Bearings without Inner Ring 		MR series Without Ring
MR-10
MR Series Heavy Duty Needle Roller Bearings without Inner Ring 		MR series Without Ring
MR-12-N
MR Series Heavy Duty Needle Roller Bearings without Inner Ring 		MR series Without Ring
MR-12
MR Series Heavy Duty Needle Roller Bearings without Inner Ring 		MR series Without Ring
MR-14-N
MR Series Heavy Duty Needle Roller Bearings without Inner Ring
Military Standard Number N/A MS 51961-1 N/A N/A MS 51961-2 N/A MS 51961-3 N/A MS 51961-5
(S) Shaft Diameter N/A 0.6250 in N/A 0.6250 in N/A 0.7500 in N/A 0.7500 in N/A 0.8750 in
(S) Shaft Dia. Tolerance N/A +0.0000/-0.0004
(D) Dimension N/A 1.1250 in N/A 1.1250 in N/A 1-1/4 in N/A 1-1/4 in N/A 1.3750 in
(D) Dimension Tolerance N/A +0.0000/-0.0005
(W) Dimension N/A 0.750 in N/A 1.000 in N/A 0.750 in N/A 1.000 in N/A 0.750 in
(W) Dimension Tolerance N/A +0.000/-0.005
(H) Hole Dia. N/A 5/64 in
(R) Max. Fillet for Housing N/A 0.025 in N/A 0.025 in N/A 0.040 in N/A 0.040 in N/A 0.040 in
Stationary Housing Bore Dia. N/A 1.1257 in N/A 1.1257 in N/A 1.2507 in N/A 1.2507 in N/A 1.3757 in
Stationary Housing Bore Dia. Tolerance N/A +0.0000/-0.0007
Rotating Housing Bore Dia. N/A 1.1247 in N/A 1.1247 in N/A 1.2497 in N/A 1.2497 in N/A 1.3747 in
Rotating Housing Bore Dia. Tolerance N/A +0.0000/-0.0007
Static Load Rating N/A 4300 lb N/A 6500 lb N/A 5400 lb N/A 8100 lb N/A 6000 lb
Basic Dynamic Rating N/A 4320 lb N/A 5930 lb N/A 4990 lb N/A 6830 lb N/A 5280 lb