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Gray cast-iron rhombus flange bearing, two mounting holes, double-sealed alloy-steel insert

Timken

Timken YCJT 3/4 SGT 2-Hole Rhombus Flange Bearing Collectible

SKU CH-J4D9-40CEN

A new Timken radial ball flange bearing with a 3/4 in cylindrical bore, cast-iron rhombus housing and double seals, rated to 9,200 RPM from -65 to 200 °F

  • Product typeBearings, V-belts & Power Transmission Equipment
  • Product colorGray
  • Radial ball insert delivers smooth rotation
  • Double-sealed closure keeps contaminants out
  • Cast-iron rhombus housing provides rigid mounting
  • NLGI #2 equivalent lubricant reduces maintenance
  • Operates from -65 °F to 200 °F

Timken YCJT 3/4 SGT Flange Bearing

This new Timken YCJT flange bearing is a collectible piece of power-transmission hardware for enthusiasts of industrial memorabilia. It features a rhombus-shaped cast-iron housing with two mounting holes and a 3/4 inch cylindrical bore. The unit comes fitted with a GY1012KRRB SGT radial ball insert made from alloy steel.

Thermals Noise and Power Draw

The bearing operates within a temperature range of -65 to 200 degrees F using NLGI #2 equivalent lubricant. It is rated for a maximum speed of 9,200 RPM under fixed expansion conditions. The double-sealed closure helps retain lubricant and exclude contaminants during normal use.

What This Replaces and When the Jump Is Worth It

This item serves as a direct replacement for a worn two-bolt flange bearing with the same bore and housing geometry. The upgrade is worthwhile when the original unit shows seal failure, excessive play, or lubricant breakdown. It is not suited for applications requiring a different bore size, mounting pattern, or expansion type.

How it compares

Measured against everything we stock in Fan Collectibles & Memorabilia, at today’s prices. Recalculated every night.

Price $79.99
Pricier than about 86% of the 1,367 comparable items (median $26.99).

Specifications

Product
Brand nameTIMKEN
Product typeBearings, V-belts & Power Transmission Equipment
Product colorGray

Questions about this item

How do I install the 2-hole rhombus flange bearing and what step is often missed?

Bolt the cast-iron housing through its two mounting holes onto a flat surface, then tighten the GY1012KRRB SGT insert onto the 3/4 in cylindrical shaft using the set screws; the step often missed is torquing the set screws to the manufacturer value so the double-sealed radial ball bearing does not shift under load.

What maintenance will the Timken YCJT 3/4 SGT bearing need later?

The unit arrives lubricated with NLGI #2 equivalent grease and is double sealed; re-lubricate through the fitting on the housing at regular intervals, and replace the GY1012KRRB SGT insert when radial play or noise appears.

What limit appears first when the bearing runs continuously at high speed?

The 9,200 RPM maximum speed rating is reached before the 200 °F temperature ceiling, so sustained operation near that speed will trigger the speed limit first.

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