Needle roller bearings contain long narrow rollers formed in a cylindrical shape. These types of needle rollers allow for contact with large surface areas on the outer ring. Needle bearings are frequently used in the automotive industry, due to their compact design, which is much smaller than other cylindrical rollers. Rocker arm pivots, drive shafts, transmissions, and compressors are all applications that employ needle roller bearings.

MR series heavy duty needle roller bearings, which can be equipped with seals and inner rings, have an inner ring which is removable from the outer. In this configuration the rollers can ride directly on the shaft as long as the shaft has the proper Rockwell hardness and tolerance. This allows for a very compact design. To ensure a complete bearing that fits your needs, make certain that you specify both the inner and outer diameters, since each is packed separately.

We also offer double seals, which are available with lips that are turned inward. This configuration is the most common, and allows for the retention of lubrication within the bearing. Other combinations of seals are available as per your specific needs.

We are also capable of providing CAGEROL bearing sizes that are not listed as being available with seals. Bearing sizes are available in various bores from 0.3750 inches, and diameters starting at 1 inch.

Emerson Bearing has over 50 years of experience within the bearing industry, and our team of experts can help you find the exact bearing that you need for your demanding application. With a warehouse spanning over 25,000 square feet, our stock offers a wide range of equipment. If for any reason we don’t carry the parts you need, we will ensure that you find them.

At Emerson Bearing, we offer a variety of programs to suit your business needs, including fixed price programs, monthly shipping, stock holds, and more. We also offer other products to keep your equipment in top condition, such as oil seals, roller chains, as well as many more. Be sure to check out our Line card to find our full range of items suitable for your business needs.

Let us show you how we can help you with your needs. Contact Emerson Bearing today, and let our team of experts find everything you need for your applications.

Unit of Measure
Items
outer ring assembly

MR Series Heavy Duty Needle Roller Bearings with Seals and Inner Rings

outer ring assembly

MR Series Heavy Duty Needle Roller Bearings with Seals and Inner Rings

outer ring assembly

MR Series Heavy Duty Needle Roller Bearings with Seals and Inner Rings

outer ring assembly

MR Series Heavy Duty Needle Roller Bearings with Seals and Inner Rings

outer ring assembly

MR Series Heavy Duty Needle Roller Bearings with Seals and Inner Rings
(B) Dimension N/A 0.3750 in N/A 1/2 in N/A 0.6250 in N/A 0.8125 in N/A 0.8125 in
(B) Dimension Tolerance N/A +0.0000/-0.0004 N/A +0.0000/-0.0004 N/A +0.0000/-0.0004 N/A +0.0000/-0.0005 N/A +0.0000/-0.0005
(D) Dimension N/A 1.1250 in N/A 1-1/4 in N/A 1.3750 in N/A 1-1/2 in N/A 1-1/2 in
(D) Dimension Tolerance N/A +0.0000/-0.0005
(W) Dimension N/A 1.000 in
(W1) Dimension N/A 1.010
(H) Hole Dia. N/A 5/64 in
(R) Max. Fillet for Shaft & Housing N/A 0.025 N/A 0.040 N/A 0.040 N/A 0.040 N/A 0.040
Stationary Shaft Dia. N/A 0.3747 in N/A 0.4997 in N/A 0.6247 in N/A 0.7497 in N/A 0.8121 in
Stationary Housing Bore Dia. Tolerance N/A +0.0000/-0.0007
Rotating Shaft Dia. N/A 0.3755 in N/A 0.5005 in N/A 0.6255 in N/A 0.7505 in N/A 0.8129 in
Rotating Shaft Dia. Tolerance N/A +0.0000/-0.0005
Stationary Housing Bore Dia. N/A 1.1257 in N/A 1.2507 in N/A 1.3757 in N/A 1.5007 in N/A 1.5007 in
Stationary Shaft Dia. Tolerance N/A +0.0000/-0.0005
Rotating Housing Bore Dia. N/A 1.1247 in N/A 1.2497 in N/A 1.3747 in N/A 1.4997 in N/A 1.4997 in
Rotating Housing Bore Dia. Tolerance N/A +0.0000/-0.0007
Static Load Rating N/A 4300 lb N/A 5400 lb N/A 6000 lb N/A 7100 lb N/A 7100 lb
Basic Dynamic Rating N/A 4320 lb N/A 4990 lb N/A 5280 lb N/A 5840 lb N/A 5840 lb
Complete Assembly Item # N/A MR-10-SS N/A MR-12-SS N/A MR-14-SS N/A MR-16-SS N/A MR-16-SS