31306/DF

Design Features of 31306/DF Bearing

31306/DF features pairs of tapered rollers arranged to provide optimized load distribution, enhancing performance in both radial and axial directions. 31306/DF outer dia is 72 mm. Its bore dia is 30 mm. Its design allows for precise adjustment of internal clearance and preload, ensuring improved stability and reliability in high-load applications.

 

What Benefits Can 31306/DF Bearing Provide?

  • Enhanced Load Capacity: Their design allows for improved distribution of loads, enabling them to handle higher radial and axial forces effectively.
  • Improved Stability: The precise matching of the bearings ensures consistent performance and stability under varying loads and operating conditions.
  • Adjustable Internal Clearance: Users can customize the internal clearance and preload to suit specific application requirements, optimizing performance.
  • Reduced Friction: The tapered roller design minimizes friction between moving parts, leading to smoother operation and extended service life.
  • Versatile Applications: Suitable for a wide range of applications, from automotive to industrial machinery, due to their adaptability to different load and speed conditions.

 

What Can 31306/DF Bearing Be Used for?

  • Automotive: Utilized in wheel hubs, differentials, and transmission systems to support heavy loads and provide accurate alignment.
  • Industrial Machinery: Found in gearboxes, conveyors, and pumps, where they manage both radial and axial loads effectively.
  • Aerospace: Employed in aircraft landing gear and other critical components that require high reliability and performance under heavy loads.
  • Heavy Equipment: Used in construction and mining machinery to ensure stability and support in harsh operating conditions.
  • Railway: Applied in train axle boxes to handle the substantial loads and forces experienced during operation.

Part Number 31306/DF
System of Measurement Metric
Type Bearing
Bearing Type Roller
Roller Bearing Type Tapered
For Load Direction Combined
Construction Matched
Seal Type Open
Cups Type Standard
Bore Dia 30 mm
Bore Dia Tolerance -0.012mm to 0
Outer Dia 72 mm
Outer Dia Tolerance -0.016mm to 0
Total Width 41.5 mm
Total Width Tolerance +0.2mm to 0
Width Of Inner Rings 38 mm
Width Of Inner Rings Tolerance -0.1mm to 0
Width Of Lubrication Groove 8 mm
Diameter Of Lubrication Hole 5.5 mm
Chamfer Dimension Inner Ring min.0.6 mm
Chamfer Dimension Outer Ring min.1.5 mm
Ring Material Chrome Steel
Roller Material Chrome Steel
Cage Material Steel
Abutment Diameter Shaft 40 mm
Abutment Diameter Housing 40 mm
Fillet Radius max.1.5 mm
Reference Speed 5600 r/min
Limiting Speed 9500 r/min
Dynamic Radial Load 22500 lbf
Static Radial Load 22500 lbf
Fatigue Load Limit 2565 lbf
Lubrication Required
Temperature Range -30° to 110 °C
ABEC Rating ABEC-1
Radial Clearance Standard (Available in C3/C4/C5)
RoHS Compliant
REACH Compliant
Weight 1.81 lb

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