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uxcell #25 Chain Idler Sprocket, 12mm Bore 1/4' Pitch 20 Tooth Tensioner, Black Oxide Finish C45 Carbon Steel with Insert Single Bearing for ISO 04C Chains

4.4 (2) Write Review
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$13.09

$ 5 .99 $5.99

In Stock

About this item

  • Specifications: Number of Teeth: 20; Bearing Model: 6901Z; Outside Diameter: 43mm / 1.69-inch; Bump Width: 5mm / 0.2-inch; Total Width: 13mm / 0.51-inch; Bore Diameter: 12mm / 0.47-inch; Pitch: 1/4-inch / 6.35mm; Tooth Width: 2.8mm / 0.11-inch; 1 x Idler Sprocket
  • Idler sprocket is a flat sprocket, with a sealed bearing that allows the sprocket to rotate freely. Idler sprockets are normally mounted in a fixed position on a fixed shaft.
  • The product is made of c45 carbon steel, the tooth part high temperature quenching heat treatment, high hardness, wear resistance, long service life, easy to use.
  • The Idler sprocket should not rotate at a greater speed than is allowable for drive sprockets of the same size. Every roller chain idler sprocket comes with strong teeth that can latch onto the chain. It is suggested that idler sprockets have at least three teeth in mesh with the chain.
  • Widely used in milling machine, drilling machine or other machinery transmission occasions.


Product Description

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Single bearing with retaining ring, suitable for firmness and stability.

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The double bearing has high concentricity and is suitable for high-speed applications.

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Please select the appropriate Idler Sprocket according to the chain specification used before purchasing.


Bob L
Reviewed in the United States on February 2, 2024
Working for my sliding door opener
Richard W. Leblanc Jr.
Reviewed in the United States on August 15, 2023
This product was priced lower than comparative items however, it was very well-made and put together. The bearing was decent quality. It was retained with a quality snap ring. Overall, it is an excellent value for the money, if you are building a low torque chain, drive application.