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Flat Idler Pulley - 5'' Dia. - 17mm Bore - Steel

Flat Idler Pulley - 5'' Dia. - 17mm Bore - Steel

Your Price: $26.20
In Stock.
Part Number:31500105B
  • Back Side Offset:0.235"
  • Bearing Inner Diameter:0.669"
  • Finish:Paint Black
  • Flange Angle:15°
  • Flat Diameter:5"
  • Flat Width:1.06"
  • Front Side Offset:0.235"
  • Inside Diameter:17mm|Multiple Bore Options
  • Inside Diameter Exact:0.669"
  • Material:Steel
  • Material Thickness:0.06"
  • Number of Flanges:2
  • Outside Diameter:5.5"
  • Stickout:-0.425"
  • Through Bore:0.47"
  • Width:1.32"
  • OEM Part Number:Land Pride: 839-090C; Rotary: 110-10227A

Choose Options

Bore Adapter help

Made in

United States



This Flat Idler Pulley works both as an OEM replacement and as a general purpose pulley for power transmission such as compressors, industrial fans, lawn mowers, snowblowers, and electric motors. It does not come with a bore adapter installed, the inside diameter is equal to the bearing diameter of 17mm. You can choose from the above drop-down menu if you would like a bore adapter inserted for no additional charge.

31500105B features a heavy duty sealed radial single-row bearing. This part is Painted Black to prevent rusting.

Additional Features:
  • Made of Steel
  • Flanges angled outward to help increase belt life

IF 5.5 x 1.32 x 0.67