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Needle Bearings Heavy Duty Cage Needle Roller Bearing MR 48 Without Inner Ring

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Needle Bearings Heavy Duty Cage Needle Roller Bearing MR 48 Without Inner Ring

Country/Region china
City & Province changzhou jiangsu
Categories Chains
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Product Details

Heavy Duty Machined Race Needle Bearings Without Inner Ring, Open Type, Inch Size

 

Heavy Duty Cage Needle Bearings are a type of roller bearings that use a cage or retainer to separate and guide the needle rollers. These bearings are designed to handle high radial loads with a compact and lightweight construction.

 

The needle rollers in these bearings are much thinner in diameter compared to the outer diameter of the bearings. This design allows for a higher surface area contact between the rollers and the raceway, enabling them to support heavy loads while maintaining a small footprint.

 

The cage or retainer in Heavy Duty Cage Needle Bearings serves several important functions. It maintains the proper spacing between the needle rollers, ensuring even load distribution and reducing friction between the rollers. The cage also acts as a guide, preventing the rollers from skewing or contacting each other excessively.

 

These bearings are commonly used in various applications across different industries. They are particularly suitable for applications where space is limited, and high load-carrying capacity is required. Some typical applications include automotive transmissions, power tools, printing machinery, textile machinery, and agricultural equipment.

 

Features and Benefits:

Machined Outer Race

Race manufactured from bearing quality steel and hardened to carry heavy dynamic and static loads.
 
Annular Lubrication Groove
The groove provides a circumferential path to direct lubricant to the hole when lubricating through the housing.
 
Machined Inner Ring (MI)
Precision ground inner ring provides a hardened raceway for the rollers when used with an unhardened shaft. The ring contains an oil hole and annular groove for relubrication of the bearing

 
Key Features:
  • Machined race needle bearing
  • Retained (caged) needle rolling elements
  • Annular lubrication groove

 

When selecting Heavy Duty Cage Needle Bearings, it is important to consider factors such as the required load capacity, operating conditions, speed, and the specific dimensions needed for your application.

Feel free to contact us, our technician and engineers are glad to provide your detailed specifications and guidelines to help choose the most suitable bearing for your requirements.

 

Heavy Duty Machined Race Needle Roller Bearings MR Series Specifications:

 

Bearing Code

 

Inner Ring

BDWW1HR
+.0000Tol.+.0000Tol.

+.000

-0.005

+.000

-0.005

hole dia.Max.
MR 44 NMI 36 N2.2500-.00063.5000-.00081.5001.5101/8.080
MR 44MI 352.1875-.00063.5000-.00081.7501.7601/8.080
MR 44MI 362.2500-.00063.5000-.00081.7501.7601/8.080
MR 48 NMI 40 N2.5000-.00063.7500-.00081.5001.5101/8.080
MR 48MI 382.3750-.00063.7500-.00081.7501.7601/8.080
MR 48MI 392.4375-.00063.7500-.00081.7501.7601/8.080
MR 48MI 402.5000-.00063.7500-.00081.7501.7601/8.080
MR 52MI 422.6250-.00064.2500-.00081.7501.7603/16.080
MR 52MI 442.7500-.00064.2500-.00081.7501.7603/16.080
MR 56 NMI 48 N3.0000-.00064.5000-.00081.7501.7603/16.080
MR 56MI 462.8750-.00064.5000-.00082.0002.0103/16.080
MR 56MI 472.9375-.00064.5000-.00082.0002.0103/16.080
MR 56MI 483.0000-.00064.5000-.00082.0002.0103/16.080
MR 60MI 503.1250-.00064.7500-.00082.0002.0103/16.100
MR 60MI 523.2500-.00064.7500-.00082.0002.0103/16.100
MR 64MI 543.3750-.00085.0000-.00102.0002.0103/16.100
MR 64MI 563.5000-.00085.0000-.00102.0002.0103/16.100
MR 68MI 583.6250-.00085.2500-.00102.0002.0103/16.100
MR 68MI 603.7500-.00085.2500-.00102.0002.0103/16.100
MR 72MI 623.8750-.00086.0000-.00102.2502.2603/16.100
MR 80MI 644.0000-.00086.5000-.00102.2502.2603/16.100
MR 80MI 684.2500-.00086.5000-.00102.2502.2603/16.100
MR 88 NMI 72 N4.5000-.00087.0000-.00102.5002.5153/16.100
MR 88MI 724.5000-.00087.0000-.00103.0003.0153/16.100
MR 96 NMI 80 N5.0000-.00107.5000-.00122.5002.5151/4.120
MR 96MI 805.0000-.00107.5000-.00123.0003.0151/4.120
MR 104 NMI 88 N5.5000-.00108.0000-.00122.5002.5151/4.120
MR 104MI 885.5000-.00108.0000-.00123.0003.0151/4.120
MR 116MI 966.0000-.00109.1250-.00123.0003.0151/4.120
MR 124MI 1046.5000-.00109.6250-.00123.0003.0151/4.120
MR 132MI 1127.0000-.001010.1250-.00123.0003.0151/4.120
MR 140MI 1207.5000-.001210.6250-.00143.0003.0151/4.160
MR 148MI 1288.0000-.001211.1250-.00143.0003.0151/4.160

 

 

Bearing Code

 

Inner Ring

Shaft Dia.Basic Load Rating
Rotat. ShaftTol.Stat. ShaftTol.STA.DYN.
MR 44 NMI 36 N2.2508-.00082.2497-.00084670024500
MR 44MI 352.1883-.00082.1872-.00085670028400
MR 44MI 362.2508-.00082.2497-.00085670028400
MR 48 NMI 40 N2.5008-.00082.4997-.00085230026100
MR 48MI 382.3758-.00082.3747-.00086340030300
MR 48MI 392.4383-.00082.4372-.00086340030300
MR 48MI 402.5008-.00082.4997-.00086340030300
MR 52MI 422.6258-.00082.6247-.00086440029900
MR 52MI 442.7508-.00082.7497-.00086440029900
MR 56 NMI 48 N3.0008-.00082.9997-.00087160031300
MR 56MI 462.8758-.00082.8747-.00088350035900
MR 56MI 472.9383-.00082.9372-.00088350035900
MR 56MI 483.0008-.00082.9997-.00088350035900
MR 60MI 503.1260-.00103.1246-.00108710036500
MR 60MI 523.2510-.00103.2496-.00108710036500
MR 64MI 543.3758-.00103.3746-.00109380038000
MR-64MI 563.5008-.00103.4996-.00109380038000
MR 68MI 583.6258-.00103.6246-.001010100039500
MR 68MI 603.7508-.00103.7496-.001010100039500
MR 72MI 623.8758-.00103.8746-.001013000060300
MR 80MI 644.0008-.00103.9996-.001014800064600
MR 80MI 684.2508-.00104.2496-.001014800064600
MR 88 NMI 72 N4.5008-.00104.4996-.001016980070200
MR 88MI 724.5008-.00104.4996-.001022000085700
MR 96 NMI 80 N5.0010-.00104.9995-.001017700071000
MR 96MI 805.0010-.00104.9995-.001022800086600
MR 104 NMI 88 N5.5010-.00105.4995-.001018300071700
MR 104MI 885.5010-.00105.4995-.001023700087500
MR 116MI 966.0012-.00125.9995-.001223400095200
MR 124MI 1046.5012-.00126.4995-.001225200099100
MR 132MI 1127.0012-.00126.9995-.0012270000103000
MR 140MI 1207.5010-.00127.4995-.0012280000104000
MR 148MI 1288.0010-.00127.9995-.0012292000108000

 

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