The Timken Company RCSM3 4 Bearing Insert

Description:

The Timken RCSM 3/4 cartridge bearing insert is used to support a 3/4-inch rotating shaft while reducing vibration and providing reliable operation in industrial power transmission systems. Commonly installed in HVAC equipment, air handling units, light-duty conveyors, ventilation systems, and other machinery utilizing rubber cartridge bearing assemblies. Maintenance teams, OEMs, and system integrators use this bearing insert for replacement, repair, retrofit, and equipment overhaul to restore smooth shaft operation and minimize equipment downtime.

Applications:

The Timken RCSM 3/4 is a Fafnir® rubber cartridge mounted ball bearing featuring an eccentric locking collar and an RA012RR insert bearing for secure shaft retention and quiet operation. Its conductive synthetic rubber housing helps absorb vibration and noise, making it well suited for HVAC systems, ventilating equipment, domestic heating applications, and light-duty industrial machinery where smooth, low-noise performance is essential.

Technical Specifications:

• Manufacturer: Timken
• Manufacturer Part Number (MPN): RCSM 3/4
• Product Type: Cartridge bearing unit (bearing insert)
• Series: Fafnir® RCSM Series
• Bearing Type: Mounted ball bearing
• Bearing Number: RA012RR
• Shaft Size: 3/4 in (19.05 mm)
• Locking Style: Eccentric locking collar
• Housing Style: Rubber cartridge mount
• Housing Material: Conductive synthetic rubber
• Seal Type: Positive-contact land-riding seals
• Lubrication: Factory prelubricated, non-relubricatable
• Outside Diameter: 2.531 in (64.3 mm)
• Overall Width (B1): 1.220 in (31 mm)
• Dynamic Radial Load Rating: 3,190 lbf (14,200 N)
• Static Radial Load Rating: 1,460 lbf (6,500 N)

Common Replacements:

• Timken RC 3/4
• Timken RCR 3/4
• Timken RA012RR insert bearing