JIS Plain Linear Bearing FJ38 38mm Closed, Precision ID RST The double size is equivalent

The double size is equivalent to two standard-sized bearings back-to-back

Polymer Cage

Vibration damping for smooth and quiet operation

Open Pillow Block Linear Ball Bearing with a 3/4" ID (inner diameter) featuring a crowned shell linear bearing for self-alignment in an aluminum alloy housing

92 inch wide Redi-Rail RR18 linear rails with 3 double row

JIS Plain Linear Bearing FJ38 38mm Closed, Precision ID RST The double size is equivalentClosed shell plain linear bearing with a JIS 38mm ID, precision running clearance, durable green anodized aluminum shell, and a bonded self lubricating FrelonGOLD liner that facilitates smooth linear, rotational, or oscillating motion on round shafts in harsh conditions where contamination, vibration, shock loads, washdowns, temperature extremes, lubricant maintenance difficulties, or poor machine accessibility can make rolling element bearings harder