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Gray cast-iron four-bolt flange bearing with double-sealed alloy steel insert

Timken

Timken SCJ 1 3/4 Flange Bearing collectible

SKU CH-3WP8-68W9B

A 1-3/4 inch bore radial ball flange bearing with cast-iron housing, double seals and a 3,120 RPM rating

  • TypeBearings, V-belts & Power Transmission Equipment
  • ColorGray
  • New collectible bearing for display or parts
  • Double-sealed design keeps lubricant in and contaminants out
  • Cast-iron housing with four-bolt flange for solid mounting
  • Alloy-steel radial ball insert rated to 3 120 RPM
  • Operates from –65 °F to 200 °F with NLGI #2 grease

Collectible Timken Flange Bearing

This listing presents a new Timken SCJ 1 3/4 flange bearing offered as a sports memorabilia and collectibles item. It carries the Timken brand and a gray finish. The unit is a fixed-expansion, four-bolt square housing made of cast iron with a cylindrical bore. It suits collectors of industrial components or vintage power-transmission hardware.

Mounting And Specification Check

Verify that your display or mounting surface accommodates a four-hole pattern with a 4 1/8 inch center-to-center height. Confirm the 1 3/4 inch bore diameter matches the shaft you intend to exhibit. Note the .591 inch back-side-to-center width and the double-sealed, alloy-steel radial ball insert identified as GYA112RRB. The operating range spans -65 to 200 degrees Fahrenheit with a 3,120 RPM limit.

Sustained Load Behaviour

Under continuous operation the bearing runs on NLGI #2 equivalent lubricant within the stated temperature window. The fixed housing and double-sealed insert maintain alignment and contamination resistance during extended rotation up to the maximum rated speed. Cast iron construction provides dimensional stability for long-term static display or occasional demonstration use.

Highlights

  • New collectible bearing for display or parts
  • Double-sealed design keeps lubricant in and contaminants out
  • Cast-iron housing with four-bolt flange for solid mounting
  • Alloy-steel radial ball insert rated to 3 120 RPM
  • Operates from –65 °F to 200 °F with NLGI #2 grease

Specifications

BrandTIMKEN
TypeBearings, V-belts & Power Transmission Equipment
ColorGray

Questions about this item

What comes in the box with the Timken SCJ 1 3/4 Flange Bearing and what must be purchased separately?

The unit includes the GYA112RRB bearing insert already mounted in the four-bolt cast-iron housing with double seals and NLGI #2 equivalent grease. Mounting bolts, shims and any alignment tools are not included.

How do I choose between the listed versions or capacities for this bearing?

This listing is for a single 1 3/4 inch bore, fixed-expansion, square four-bolt flange with a 3,120 RPM maximum speed and a -65 to 200 °F operating range. No other bore sizes or housing styles are offered here.

What does the 3,120 RPM rating mean once the bearing is installed in a real machine?

It is the maximum safe rotational speed for the alloy-steel radial ball insert when properly lubricated and aligned; exceeding it risks overheating or premature wear even though the housing and seals can handle the load.

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