Timken
Timken 2-Bolt Flange Bearing 1-3/16" Bore Dia
A 2-bolt flange bearing with a 1-3/16" cylindrical bore, double-sealed alloy steel ball insert, and cast iron housing rated to 4,640 RPM
- Double-sealed closure keeps contaminants out for longer service life
- Cast-iron rhombus housing provides rigid two-bolt mounting
- Alloy-steel radial ball insert handles radial loads smoothly
- Pre-filled with NLGI #2 equivalent grease for immediate installation
- Operates from -65 °F to 200 °F in fixed-expansion applications
1-3/16" Bore Flange Bearing
This Timken 2-bolt flange bearing uses a GRA103RRB radial ball insert with a 1-3/16 inch cylindrical bore. The cast iron rhombus housing is double sealed and lubricated with NLGI #2 equivalent grease. It suits shafts needing fixed expansion within the stated temperature range.
Mounting and alignment
Two bolt holes simplify installation on flat surfaces when the housing sits flush and fasteners are torqued evenly. Misaligned mounting faces or overtightened bolts can distort the housing and reduce bearing life. The fixed expansion type requires accurate shaft positioning to avoid axial loading.
Speed and temperature limits
Continuous operation is rated up to 4,640 RPM between -65 and 200 degrees Fahrenheit. Exceeding the speed limit or running outside the temperature window degrades the lubricant and seals. The assembly handles moderate radial loads but is not suited for high-speed or high-heat applications beyond these ratings.
Highlights
- Double-sealed closure keeps contaminants out for longer service life
- Cast-iron rhombus housing provides rigid two-bolt mounting
- Alloy-steel radial ball insert handles radial loads smoothly
- Pre-filled with NLGI #2 equivalent grease for immediate installation
- Operates from -65 °F to 200 °F in fixed-expansion applications
Specifications
| Brand | Timken |
|---|
Questions about this item
How do I verify the bearing is running within its rated speed after installation?
Check that the shaft speed stays at or below 4,640 RPM; the bearing is rated for that maximum speed.
What components are included and what must be sourced separately?
The package includes the GRA103RRB radial ball insert in a cast-iron rhombus housing with double seals and NLGI #2 equivalent grease; mounting bolts are not supplied.
Which bore size should I select for a 1-3/16 inch shaft?
Choose the 1-3/16 inch bore version; it matches the shaft diameter exactly and uses a cylindrical bore type.
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