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Koyo CRS-52 KOYCRS52
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Koyo CRS-52 KOYCRS52

Koyo CRS-52 Inch Series Stud Type Uncaged Needle Bearing Track Roller, 3-1/4 in Dia x 1-3/4 in W Roller, 1-1/4 in Dia x 2-1/2 in L Stud

  • Manufacturer: JTEKT Corporation
  • Brand Name: Koyo
  • Part Number: KOYCRS52
  • MPN: CRS-52
  • UPC: 605790189944
  • Min. Order Qty: 1
  • Qty. Interval: 1
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Track rollers (also known as cam followers) are characterized by their thick-walled outer rings that run directly on a track. The thick outer rings permit high load-carrying capability while minimizing both distortion and bending stresses. Sealed designs with internal thrust washers help extend service life under conditions of infrequent lubrication.

Koyo Needle Bearing Track Roller, Stud Type Uncaged, Series: CRS Inch Series, 3-1/4 in Roller Diameter, 1-3/4 in Roller Width, 1-1/4 in Stud Diameter, 2-1/2 in Stud Length, 1-1/4-12 Thread, 1-1/4 in Thread Length, 12300 lbf Dynamic/33100 lbf Static Load, 990 rpm Grease Maximum, -25 to 225 deg F, Sealed Closure, Black Oxide

Closure Type      :      Sealed
Finish      :      Black Oxide
Load Capacity      :      12300 lbf Dynamic/33100 lbf Static
Maximum Speed      :      990 rpm Grease
Roller Diameter      :      3-1/4 in
Roller Width      :      1-3/4 in
Series      :      CRS Inch Series
Stud Diameter      :      1-1/4 in
Stud Length      :      2-1/2 in
Temperature Rating      :      -25 to 225 deg F
Thread Length      :      1-1/4 in
Thread Size      :      1-1/4-12
Type      :      Stud Type Uncaged
  • Screwdriver slot in head facilitates mounting
  • Non-separable, sealed unit with outer ring, full complement of needle rollers, stud seals, self-lubricating resin internal thrust washers and stud-fastened retaining washer
  • Seals help retain lubricant and exclude foreign matter
  • Re-lubrication via axially drilled hole through stud with cross-drilled holes in stud raceway and shank
  • Recessed axial hole accepts standard nominal inch drive-type grease lubrication fitting
  • Lubrication fitting plugs furnished to close off unused holes
  • Tolerance limits for outer diameters of stud and outer ring refer to "single mean diameter"
  • A close fit between stud and hole required for mounting
  • Retaining washer should be firmly backed up by flat housing shoulder (perpendicular to the stud axis)
  • Shoulder diameter should be atleast same size as minimum clamping diameter listed
  • May be mounted with two thin lock nuts or nut and lock washer
  • pdfCatalog https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/Koyo_CR10_Catalog.pdf
  • pdfCatalog https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/Koyo_CR10_Catalog.pdf