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)
M249747/710 257,175 358,775 71,438 842 1760 156 1200 1700 20,5
38880/38820 263,525 325,438 28,575 220 550 48 1300 1800 53,0
L555249/210 292,100 374,650 47,625 501 1140 98 1100 1600 12,0
L555249/210/VE174 292,100 374,650 47,625 501 1140 98 1100 1600 12,0
L357049/010/VE174 304,800 393,700 50,800 528 1220 104 1000 1500 14,5
LM361649A/610 343,154 450,850 66,675 935 2200 180 900 1300 28,0
L865547/512 381,000 479,425 49,250 594 1500 120 800 1200 20,0
HM266449/410 384,175 546,100 104,775 1870 4150 320 750 1100 77,0
LL566848/810/HA1 403,225 460,375 28,575 246 765 58,5 800 1200 6,70
LM567949/910/HA1 406,400 549,275 85,725 1380 3050 236 700 1000 53,5
LM770949/910 457,200 603,250 85,725 1450 3400 265 630 950 61,5
LM772748/710/HA1 488,950 634,873 84,183 1450 3650 265 600 850 63,5
EE243196/250/HA2 498,475 634,873 80,962 1470 3650 270 600 850 59,5
EE843220/290 558,800 736,600 88,108 1830 4150 305 500 750 92,5
LM377449/410 558,800 736,600 104,775 2330 5700 405 500 750 115
EE649240/310 609,600 787,400 93,662 2160 5300 380 450 670 110
EE649240AX/310 609,600 787,400 93,662 2160 5300 380 450 670 110
LM283649/610/HA1 749,300 990,600 159,500 4570 12000 750 340 500 330
L183448/410 760,000 889,000 88,900 1870 5850 380 360 530 94,0
LL483449/418 762,000 889,000 69,850 1230 3800 255 380 560 66,5
L183449/410 762,000 889,000 88,900 1870 5850 380 360 530 94,0
EE763330/410 838,200 1041,400 93,662 1900 4800 320 320 460 160