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31308 27308E Metric Tapered Roller Bearings
31308 27308E Metric Tapered Roller Bearings
31308 27308E Metric Tapered Roller Bearings

31308 27308E Metric Tapered Roller Bearings

The 31308 27308E bearing offers a 40mm inner diameter and a 90mm outer diameter with a 25.25mm width. It is suitable for applications requiring high load resistance and durability, such as mining, trailers, and gear drives. Its tapered raceways help distribute the load effectively, minimizing wear and increasing lifespan.

The 31308 tapered roller bearing is designed to handle combined axial and radial loads. Commonly used in heavy vehicles and construction equipment, this bearing ensures optimal performance even under shock and vibration. With precision machining and stable heat treatment, it delivers high reliability and extended fatigue life. DSBR offers consistent quality control and customizable sizes for global OEM clients. This model is suitable for hub assemblies, gear transmissions, and axle systems.

Ideal for heavy-duty applications, they offer:

  • Excellent capacity for both radial and axial forces

  • Support for axial loads in a single direction

  • Reduced friction for efficient, high-speed operation

  • Durable, replaceable, and service-friendly design


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Technical Specification Technical Specification

Technical Specification of 31308 27308E Metric Tapered Roller Bearings

dimensions of 30204 7204e metric tapered roller bearings 


Dimensions
d40 mmBore diameter
D90 mmOutside diameter
T25.25mmTotal width
d1≈67.15mmShoulder diameter of inner ring
B23 mmWidth of inner ring
C17 mmWidth of outer ring
r1,2min.2 mmChamfer dimension of inner ring
r3,4min.1.5 mmChamfer dimension of outer ring
a28.25 mmDistance side face to pressure point


abutment dimensions of 30204 7204e metric tapered roller bearings

Abutment dimensions
damax.51 mmDiameter of shaft abutment
dbmin.50 mmDiameter of shaft abutment
Damin.71 mmDiameter of housing abutment
Damax.82.5 mmDiameter of housing abutment
Dbmin.86 mmDiameter of housing abutment
Camin.3 mmMinimum width of space required in housing on large side face
Cbmin.8 mmMinimum width of space required in housing on small side face
ramax.2 mmRadius of shaft fillet
rbmax.1.5 mmRadius of housing fillet


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Contact DSBR for More Information
2010
SINCE
9
PATENTS
120
EXPERT WORKERS
40
EXPORT COUNTRIES
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