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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.
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MR series Without Ring

MR Series Heavy Duty Needle Roller Bearings without Inner Ring
MR series Without Ring

MR Series Heavy Duty Needle Roller Bearings without Inner Ring
MR series Without Ring

MR Series Heavy Duty Needle Roller Bearings without Inner Ring
MR series Without Ring

MR Series Heavy Duty Needle Roller Bearings without Inner Ring
MR series Without Ring

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