Plain Linear Bearing - FMA20 20mm Self-Aligning Crowned
Plain linear bearing, self-aligning, closed, with a 20mm precision ID that provides a 0.0005" running clearance per side on matching round shafts. Encased in a crowned-OD cylindrical anodized aluminum shell, this bearing can pivot slightly within a pre-existing housing or machined bore to accommodate angular misalignment between parallel shafts. It features a bonded Simplicity® self-lubricating FrelonGOLD® bore liner for maintenance-free linear, rotational, and oscillating motion in harsh environments where ball bearings often fail, such as extreme temperatures, dirt, welding splatter, vibration, shock loads, contamination or washdowns.
- ISO Metric series - closed anodized aluminum shell
- Crowned outer diameter for self-alignment (straight ODs have FM part numbers)
- Precision running clearance: 0.0005" per side
- Self-Lubricating Bearing Liner: FrelonGOLD® is standard. Operates well in harsh and/or high temperature environments
- Optional liners: corrosive chemical resistant Frelon®J & FDA Compliant Frelon®W
- Optional double urethane seals for ID sizes 20mm+ for extremely dirty environments
- Optional JKM lubrication system (zirk fitting thru hole, felt wick)
- Temperature Rating: -400°F/+400°F or -240°C/204°C
- Vibration Damping: Ensures smooth and quiet operation

