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Small open radial ball bearing 20 mm bore 42 mm outer steel silver finish

Timken

Timken 9104K Radial Ball Bearing 6004 20 mm collectible

SKU CH-GFEJ-C9WPD

New Timken 6004 radial ball bearing with 20 mm bore, 42 mm outer diameter and open closure

  • TypeBearings, V-belts & Power Transmission Equipment
  • ColorTransparent
  • Industry-standard 6004 bearing fits 20 mm shafts
  • Open closure enables easy inspection and lubrication
  • ABEC 1 rating delivers reliable precision for collectors
  • Alloy steel rings and balls resist wear over time
  • 12 mm outer ring width matches classic specifications

Authentic Timken Collectible Bearing

The Timken 9104K is a new radial ball bearing presented as a sports memorabilia collectible. It carries industry number 6004 and features an open closure design. The unit is finished in a transparent colour.

For Display Collectors Not Mechanical Use

This piece suits collectors seeking an authentic Timken component for display or reference purposes. Buyers who need a sealed bearing for contamination protection should look elsewhere. Those requiring a different bore size or load rating must consider other options.

Precision Metric Construction Details

The bearing has a 20 mm bore with a tolerance of +0/- 0.010 mm and a 42 mm outside diameter. Outer ring width measures 12 mm and fillet radius is .6 mm. Dynamic radial load capacity is rated at 10, 409 N. Rings and balls are alloy steel with a steel cage and ABEC 1 rating. Lubricant is Quaker Ferrocote.

Highlights

  • Industry-standard 6004 bearing fits 20 mm shafts
  • Open closure enables easy inspection and lubrication
  • ABEC 1 rating delivers reliable precision for collectors
  • Alloy steel rings and balls resist wear over time
  • 12 mm outer ring width matches classic specifications

Specifications

BrandTIMKEN
TypeBearings, V-belts & Power Transmission Equipment
ColorTransparent

Questions about this item

What shaft diameter matches the 20 mm bore of this 6004 bearing?

A 20 mm shaft fits the bore, whose tolerance is +0/-0.010 mm, so the shaft should be at or slightly under 20 mm for a proper press fit.

Will the 42 mm outside diameter and 12 mm width fit the housing I already use for a standard 6004 bearing?

Yes, the 42 mm outer diameter and 12 mm width match the industry 6004 envelope, so existing housings for that size will accept this bearing.

How can I confirm the bearing is running correctly after installation?

Rotate the inner ring by hand; it should turn smoothly with no binding, and the open closure lets you see the steel cage and balls moving freely.

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