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Gray cast-iron rhombus flange bearing, two mounting holes, double-sealed radial ball insert

Timken

Timken RCJT 2" 2-Hole Rhombus Flange Bearing Collectible

SKU CH-5F4C-74H7S

A collectible two-hole rhombus flange bearing with a 2-inch bore, cast-iron housing and double-sealed radial ball insert

  • TypeBearings, V-belts & Power Transmission Equipment
  • ColorGray
  • Alloy-steel radial ball handles heavy radial loads
  • Double-sealed closure keeps contaminants out of the raceway
  • Cast-iron rhombus housing resists shock and vibration
  • Fixed expansion design maintains precise shaft alignment
  • Operates from -65 °F to 200 °F for wide environments

Collectible Timken Flange Bearing

This collectible Timken RCJT flange bearing is a new-old-stock power-transmission component preserved for industrial-memorabilia enthusiasts. The rhombus-style two-bolt housing and radial ball insert represent classic line-shaft hardware once common in factory and farm machinery. Collectors of vintage mechanical parts will appreciate the authentic cast-iron housing and original factory markings.

Sealed Cast-Iron Housing Performance

The double-sealed radial ball insert is factory-filled with NLGI #2 equivalent lubricant and rated for continuous operation from -65 to 200 degrees F. Fixed expansion type and alloy-steel rolling elements keep running noise low while the cast-iron rhombus housing dissipates heat during sustained 3,400 RPM service. Gray finish resists corrosion in display or demonstration settings.

Upgrade From Worn Line-Shaft Units

This bearing replaces seized or noisy two-bolt flange units on vintage conveyors, fans and agricultural equipment where a 2 in cylindrical bore is required. The jump is worthwhile when original documentation calls for a G1200KRRB insert and 8 1/2 in overall length. Buyers needing metric bores, four-bolt patterns or higher speed ratings should source a different specification.

Highlights

  • Alloy-steel radial ball handles heavy radial loads
  • Double-sealed closure keeps contaminants out of the raceway
  • Cast-iron rhombus housing resists shock and vibration
  • Fixed expansion design maintains precise shaft alignment
  • Operates from -65 °F to 200 °F for wide environments

Specifications

BrandTIMKEN
TypeBearings, V-belts & Power Transmission Equipment
ColorGray

Questions about this item

How is the 2-hole rhombus flange bearing mounted, and what alignment step is often missed?

Bolt the cast-iron housing through its two mounting holes onto a flat surface; the step often missed is shimming the base so the 2-inch cylindrical bore stays perfectly perpendicular to the shaft.

What future maintenance does the double-sealed G1200KRRB insert require?

The insert comes factory-filled with NLGI #2 equivalent grease and is double sealed; no relubrication is needed unless operating beyond the -65 to 200 °F range or 3,400 RPM limit.

Which limit appears first during continuous high-speed operation?

The 3,400 RPM maximum speed rating is reached before the 200 °F temperature ceiling under sustained load.

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