Cooper Bearings Ltd

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Bearing Selection

• Introduction
• Bearing Types
• Product Codes

Products

• Bearings
  • Bearings/Cylindral
    • 08 Series Bearing/Cylindrical
      • Introduction
      • 150mm to 240mm
    • 100-03 Series bearings and cartridges/Cylindrical
      • Introduction
      • To 75mm
      • 80mm to 105mm
      • 110mm to 130mm
      • 135mm to 155mm
      • 160mm to 190mm
      • 200mm to 250mm
      • 260mm to 300mm
      • 320mm to 360mm
      • 380mm to 460mm
      • 480mm to 600mm
  • Bearings/Tapered
    • Bearings and Cartridges/Tapered
      • Introduction
      • 75mm to 180mm
  • Special Bearings
    • 04 Series Bearings
      • Introduction
      • 04 Series Data
    • Bearings over 600mm bore size
      • Introduction
      • Over 600mm Data
• Housings
  • Housings/Cylindral
    • Hanger Unit Housing
      • Introduction
      • To 100mm
      • 105mm to 150mm
    • Heavy Duty 08 Series SDC Pedestals
      • Introduction
      • 08SDC Housings
    • Rod-end Shoe Type
      • Introduction
      • To 80mm
      • 85mm to 115mm
      • 120mm to 135mm
      • 140mm to 155mm
    • Rod-end T-Type
      • Introduction
      • To 80mm
      • 85mm to 115mm
      • 120mm to 155mm
    • Round Flange Housing
      • Introduction
      • To 75mm
      • 80mm to 110mm
      • 115mm to 140mm
      • 145mm to 155mm
      • 160mm to 220mm
      • 230mm to 300mm
      • 320mm to 400mm
    • SN / SAF / SD Compatible Pedestals
      • Introduction
      • SN Pedestals
      • SAF Pedestals
      • SD Pedestals
    • Square Flange Housing
      • Introduction
      • Specifications
    • Standard Pedestal / Pillow Block Housings
      • Introduction
      • To 75mm
      • 80mm to 105mm
      • 110mm to 130mm
      • 135mm to 155mm
      • 160mm to 190mm
      • 200mm to 250mm
      • 260mm to 300mm
      • 320mm to 360mm
      • 380mm to 460mm
      • 480mm to 600mm
    • Take-up Push Type Housing
      • Introduction
      • To 75mm
      • 80mm to 90mm
      • 100mm to 125mm
      • 130mm to 155mm
    • Take-up Tension Type Housing
      • Introduction
      • To 70mm
      • 75mm to 90mm
      • 100mm to 125mm
      • 130mm to 155mm
    • Triple Boss Hanger Unit Housing
      • Introduction
      • Specification
    • Z-Line Pedestal
      • Introduction
      • Z-Line Pedestal
  • Housings/Tapered
    • Housings for Tapered Roller Bearings (TRB)
      • Introduction
      • Pedestals
      • Flanges
  • Special Housings
    • Water Cooled Housings
    • Bespoke Housings
• Bearing Selection
• Seals
• Supporting Product Data

• Introduction
• CRB Bearings
• TRB Bearings

Bearing Selection

Bearing selection is a complex process that can be simplified by asking five key questions:

1. Shaft Size
   1. What is the shaft size at each bearing location?
   2. Is the bearing on a stepped shaft? (A stepped shaft will require modifications to the housing and seals.)
       
2. Speed
   1. What is the shaft speed at the bearing location?
   2. If belt driven, what is the motor speed and the sheave diameters?
   3. If direct drive through a reducer, what is the motor speed and the reduction ratio?
       
3. Loads
   1. What is the radial load that the bearing will be required to support?
   2. What is the axial load that the fixed bearing will be required to support? (The information needed to calculate these loads can be found on Bearing Selection Data Sheets.)
       
4. Environment
   1. Are the bearings subject to a wet environment?
   2. What is the shaft temperature at the bearings?
   3. What is the ambient temperature around the bearings?
   4. Are the bearings subject to any contamination? If so, what kind?
       
5. Current Bearing Life
   1. How long do the existing bearings last?
   2. What bearing life would you be happy with?
       

The process of selecting both CRB and TRB bearings is explained in the adjacent tabs.

You are welcome to use our bearing evaluation tool or contact Cooper where our highly qualified and experienced application engineers are ready to help.