Timken RA108RRB Eccentric Locking Insert Ball Bearing

Description:

The Timken Fafnir RA108RRB insert ball bearing with eccentric locking collar is used to support a 1-1/2 inch rotating shaft in mounted bearing units for industrial power transmission systems. Commonly installed in conveyors, agricultural equipment, packaging machinery, fans, blowers, and material handling equipment utilizing self-aligning housed bearing assemblies. Maintenance teams, OEMs, and system integrators use this bearing for replacement, repair, retrofit, and equipment overhaul to restore reliable shaft support and minimize equipment downtime.

Applications:

The Timken Fafnir RA108RRB is a standard-duty insert ball bearing featuring an eccentric locking collar, spherical outside diameter, and molded shroud seals for reliable shaft retention and initial self-alignment in compatible housings. It is widely used in conveyor systems, manufacturing plants, agricultural machinery, food processing equipment, and general industrial applications where dependable bearing performance and resistance to contamination are required.

Technical Specifications:

• Manufacturer: Timken Fafnir
• Manufacturer Part Number (MPN): RA108RRB
• Product Type: Insert ball bearing with eccentric locking collar
• Series: RA-RRB Standard Series
• Bearing Type: Deep groove insert ball bearing
• Bore Diameter: 1.500 in (38.1 mm)
• Outside Diameter: 3.150 in (80 mm)
• Outside Diameter Type: Spherical OD
• Inner Ring Width: 1.188 in (30.18 mm)
• Overall Width (B1): 1.720 in (43.7 mm)
• Outer Ring Width: 0.827 in (21 mm)
• Locking Style: Eccentric locking collar
• Bore Type: Cylindrical bore
• Material: Bearing steel
• Seal Type: Molded shroud seals
• Lubrication: Factory prelubricated, non-relubricatable
• Dynamic Radial Load Rating: 8,130 lbf (36,200 N)
• Static Radial Load Rating: 4,460 lbf (19,800 N)

Common Replacements:

• Timken RA108RR
• Timken G1108KRRB
• NTN AEL208 equivalent