Fafnir RAK 1 7/16 Torrington 1-7/16 Industrial Duty Pillow Block Bearing G-KRRB

Fafnir RAK 1 7/16 Torrington 1-7/16 Industrial Duty Pillow Block Bearing G-KRRB

The Fafnir RAK 1 7/16 is an industrial duty two-bolt pillow block bearing unit with a 1-7/16" bore, manufactured by Fafnir — a division of The Torrington Company. It uses a G-KRRB wide inner ring ball bearing with an R-Seal for protection against contamination, and features a self-locking collar for positive shaft retention without set screws digging into the shaft. The cast iron housing is designed for general industrial shaft support applications where durability and ease of installation matter.

Specifications & What's Included

• Brand: Fafnir / The Torrington Company
• Model: RAK 1 7/16
• Bore Size: 1-7/16 in (1.4375 in)
• Bearing Type: G-KRRB — wide inner ring ball bearing
• Seal Type: R-Seal (rubber contact seal, both sides)
• Collar Type: Self-locking collar (included)
• Housing Material: Cast iron
• Mounting Configuration: Two-bolt pillow block
• Lubrication: Factory prelubricated — no additional grease required for normal service conditions
• Duty Rating: Industrial duty
• Includes: Pillow block unit, self-locking collar, Fafnir installation and lubrication instruction sheet
• Note: May ship in red or green Fafnir/Torrington box — units are identical regardless of box color

Applications

Pillow block bearings like the RAK series are a standard mounting solution in industrial machinery wherever a rotating shaft needs to be supported at a fixed point on a flat or machined surface. The two-bolt cast iron housing bolts directly to a machine frame, conveyor structure, fan base, pump mount, or similar support. The self-locking collar design locks concentrically with the shaft by tightening in the direction of rotation, eliminating the shaft damage that can occur with traditional set-screw collars. The R-Seal (G-KRRB) designation means the bearing has wide inner rings and rubber contact seals on both sides, making it well-suited for moderately contaminated environments such as agriculture, food processing equipment, material handling, and general manufacturing machinery. The factory prelubrication is rated for normal service — clean, dry, moderate-temperature operation — and the instruction sheet specifies relubrication intervals when operating in harsh or high-temperature conditions. The RAK series was part of the Fafnir line that became standard in North American industrial equipment from the mid-20th century onward and remains widely used in legacy and new machinery alike.