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by Timken

Timken 17SF28 Spherical Plain Bearing, Inch, 1-3/4" ID, 2-13/16" OD, 102000 lbs Static Load Capacity, 33000 lbs Dynamic Load Capacity

List Price: $91.63
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Specifications for this item
Brand Name Timken
Part Number 17SF28
UPC 087796019638
System of Measurement Inch
Bore Diameter 1-3/4  inches
Outside Diameter 2-13/16  inches
Static Load Capacity 102000  pounds
Dynamic Load Capacity 33000  pounds
EAN 0087796019638
Manufacturer Series Number SF
Number of Items 1
UNSPSC Code 31171505

This Timken SF Series spherical plain bearing is composed of two through-h... Read full product description

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Product Features

  • Two rings, one installed within the other and machined to pivot within the outer ring, with a single fracture to permit assembly
  • Spherical for slow moving or low frequency oscillation applications
  • Grooves and holes in both rings for lubrication
  • Both inner and outer rings are manufactured from through-hardened steel and ground to a fine finish to minimize friction
  • Rings are treated with phosphate and then coated with MoS2 to further minimize friction

Product Details

Product Description

This Timken SF Series spherical plain bearing is composed of two through-hardened steel rings, an outer ring and an inner ring. The inner ring is machined to be installed within the outer ring and can spin and pivot without the aid of rolling elements. A single fracture in the outer ring permits installation of the inner ring, and the contact surfaces of both rings are ground to a fine finish to minimize friction. The bearing has grooves and holes in both rings to receive and retain lubrication, and the rings are treated with phosphate and then coated with MoS2 (molybdenum disulphide) to minimize friction. This bearing is appropriate for slow moving or low frequency oscillation, or slow thrust motion, applications, such as in a cylinder. The design minimizes maintenance and helps make the bearing capable of accommodating misalignment. SF Series spherical plain bearings are used in industrial applications such as in struts, cylinders (lifting, tilting) and articulation joints in a variety of industries such as construction, power generation, fossil energy, agriculture, and paper and forest products, among others.

Plain bearings (with no rolling elements) are used to handle radial or axial loads by providing a low-friction motion between two surfaces as shafts rotate or move back and forth through the center of the bearing. The most common types are bushings (also called bush), with a sleeve or flanged design, and are measured by their bore (inside diameter), outside diameter, length, and width (thickness). Plain bearings are used in automobiles, construction equipment, medical applications, railroad cars, turbines, various military applications, aeronautics, space exploration, among others.

The Timken Company manufactures a variety of bearings, alloy steels, and related components and assemblies that meet International Organization for Standardization (ISO) standards for quality assurance. Founded in 1899, the Timken Company is based in Canton, Ohio.

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