The Timken Company RCSM3 4 Bearing Insert

The Timken RCSM3/4 cartridge bearing insert is a Fafnir rubber cartridge mounted ball bearing designed to support a 3/4 in (19.05 mm) shaft while reducing vibration and enabling reliable operation in HVAC equipment, air handling units, light-duty conveyors, ventilation systems, and other machinery that use rubber cartridge bearing assemblies. It employs an RA012RR insert bearing with an eccentric locking collar for secure shaft retention and quiet operation, and its conductive synthetic rubber housing helps dampen vibration and noise. This unit is factory prelubricated and non-relubricatable and uses positive-contact land-riding seals; its outside diameter is 2.531 in (64.3 mm) and overall width (B1) is 1.220 in (31 mm). Key ratings include a dynamic radial load of 3,190 lbf (14,200 N) and a static radial load of 1,460 lbf (6,500 N). The RCSM3/4 is part of Timken’s RCSM Series and can be substituted by Timken RC 3/4 or Timken RCR 3/4, with RA012RR as the insert bearing. For maintenance, retrofit, and equipment overhaul, this bearing insert helps restore smooth shaft operation and minimize downtime.