Inch Tapered Roller Bearing

Inch Tapered Roller Bearing

Inch Tapered Roller Bearing

Key Features of UMZ Tapered Roller Bearings
• Superior Load Capacity: Engineered to support both radial and axial loads effectively, ensuring optimal performance even under high-stress conditions.
• High Durability: Manufactured with premium-grade materials and advanced heat treatment processes to enhance wear resistance and lifespan.
• Precision Engineering: Ensures smooth operation, reduced friction, and improved energy efficiency.
• Custom Solutions: Available in various sizes and specifications to meet the unique needs of different industries, including automotive, heavy machinery, and industrial equipment.


Tapered roller bearings are widely used in various industries due to their ability to handle combined radial and axial loads efficiently. Their unique conical design allows them to manage high thrust and radial forces while maintaining precise alignment. Below are some key applications:

1. Automotive Industry

  • Wheel Hubs: Commonly used in cars, trucks, and SUVs to support wheel rotation while handling radial (vehicle weight) and axial (cornering forces) loads.

  • Transmissions & Differentials: Helps in managing gear loads and reducing friction.

  • Axle Systems: Used in heavy-duty trucks and trailers for better load distribution.

2. Industrial Machinery

  • Gearboxes: Supports high-speed rotation while handling radial and thrust loads.

  • Conveyor Systems: Used in heavy-load applications like mining and material handling.

  • Pumps & Compressors: Ensures smooth operation under varying load conditions.

3. Aerospace & Defense

  • Aircraft Landing Gear: Handles heavy loads during takeoff and landing.

  • Helicopter Rotor Systems: Supports high-speed rotation with precision.

4. Railway & Transportation

  • Locomotive & Freight Car Axles: Provides durability under heavy loads and vibrations.

  • High-Speed Trains: Ensures stability and reduces wear.

5. Construction & Heavy Equipment

  • Cranes & Excavators: Supports heavy axial and radial loads in dynamic conditions.

  • Mining Equipment: Used in drills, crushers, and earth-moving machinery.

selectInquiryBearing No.Boundary dimensions(mm) Basic load ratings(kN)
dBR DCrTDynamic(Cr)Static(Cor)
3984/2/3920/2/Q 66,675 112,712 30,162 123 183 21,2 4300 6000 1,15
39590/39520/Q 66,675 112,712 30,162 142 204 24 4300 6300 1,20
39590/39528/Q 66,675 119,985 32,750 142 204 24 4300 6300 1,20
6386/K-6320/Q 66,675 135,755 53,975 286 400 46,5 3800 5600 3,65
29675/29620/3/Q 69,850 112,712 25,400 114 156 17,6 4500 6000 0,97
482/472/Q 69,850 120 29,795 132 186 21,6 4000 6000 1,35
47487/47420 69,850 120 32,545 154 228 26,5 4000 6000 1,50
47487/47420A/Q 69,850 120 32,545 154 228 26,5 4000 6000 1,50
566/563/Q 69,850 127 36,512 176 255 30,5 3800 5600 1,90
33281/33462/Q 71,438 117,475 30,162 123 190 22 4000 6000 1,25
H414249/210/Q 71,438 136,525 41,275 224 290 34 3600 5300 2,65
33287/33462/Q 73,025 117,475 30,162 123 190 22 4000 6000 1,20
567/563 73,025 127 36,512 176 255 30,5 3800 5600 1,80
L814749/710/QCL7C 76,200 109,538 19,050 67 102 11 4500 6000 0,60
42687/42620 76,200 127,000 30,162 138 204 24 3800 5300 1,90
47678/47620/Q 76,200 133,350 33,338 165 260 30 3400 5000 1,90
575/572/Q 76,200 139,992 36,512 187 280 32,5 3400 5000 2,45
9285/9220/CL7C 76,200 161,925 49,212 260 335 38 2800 4000 4,40
LM814849/2/810/2/Q 77,788 117,475 25,400 116 163 18,3 4300 5600 0,90
580/572/Q 82,550 139,992 36,512 187 280 32,5 3400 5000 2,20
663/653/Q 82,550 146,050 41,275 220 320 35,5 3200 4800 2,80
665/653/Q 85,725 146,050 41,275 220 320 35,5 3200 4800 2,80
593/592A/Q 88,900 152,400 39,688 194 305 34,5 3000 4500 2,80
598/592A/Q 92,075 152,400 39,688 194 305 34,5 3000 4500 2,70
594/592A/Q 95,250 152,400 39,688 194 305 34,5 3000 4500 2,55
594A/592A/Q 95,250 152,400 39,688 194 305 34,5 3000 4500 2,55
683/672 95,250 168,275 41,275 233 365 39 2800 4000 3,80
90381/90744/HA1CL7C 96,838 188,913 53,297 325 375 41,5 2600 3400 5,70
687/672 101,600 168,275 41,275 233 365 39 2800 4000 3,45
37425/2/37625/2/Q 107,950 158,750 23,020 101 163 18,3 2800 4300 1,40