Fafnir PB 1 3/16 Eccentric Collar Pillow Block Ball Bearing SSAK3/4F 3/4"

Fafnir PB 1 3/16 Eccentric Collar Pillow Block Ball Bearing SSAK3/4F 3/4"

This is a Fafnir PB 1 3/16 eccentric collar mounted ball bearing, also identified as SSAK3/4F, with a 3/4-inch bore. It features a stamped steel two-bolt pillow block housing with a rubber-sealed ball bearing insert (RA103RRB). The eccentric collar locking design allows straightforward shaft mounting and secure axial positioning without a keyway.

Specifications & What's Included

• Brand: Fafnir
• Model: PB 1 3/16
• Part Number: SSAK3/4F
• Bearing Insert: RA103RRB
• Bore Size: 3/4 in
• Locking Method: Eccentric Collar
• Housing Type: 2-Bolt Pillow Block
• Housing Material: Stamped Steel
• Seal Type: Rubber Sealed
• Country of Manufacture: USA (Made in USA stamp visible on bearing)
• Includes: 1 bearing assembly, 2 mounting plates, original Fafnir box

Applications

Pillow block ball bearings like the Fafnir PB 1 3/16 are widely used in light-duty shaft support applications across industrial, agricultural, and material handling equipment. The two-bolt stamped steel housing mounts directly to a flat surface or framework, supporting a rotating shaft at a fixed point. The eccentric collar locking mechanism is common on lower-cost pillow blocks and is suitable for applications where shaft loads are moderate and removal or repositioning is anticipated. Fafnir is a well-established American bearing brand with roots dating back to the early twentieth century; the company was later acquired by Torrington and eventually became part of the Timken portfolio. Fafnir stamped-steel pillow blocks have long been a standard choice for conveyors, fans, small agricultural machinery, and general industrial machinery where a compact, economical bearing mount is needed. The RA103RRB insert is a standard-dimension 3/4-inch bore ball bearing that can also be sourced independently if replacement is ever needed.