Twin Plain Linear Bearing Pillow Block - PWN08 1/2″ Open, Self-Aligning, Precision ID
Twin plain linear bearing pillow block, open, with a 1/2" precision ID. This self-aligning, mountable aluminum alloy pillow block bearing uses a twin design for added bearing surface and shaft support. For self-alignment, the inserted open-shelled Simplicity® plain bearing can tilt slightly within the housing to compensate for up to 1/2° misalignment from centerline in all directions, helping reduce binding from minor shaft deflection or parallel shaft misalignment. A bonded, self-lubricating FrelonGOLD® liner provides oil-free, maintenance-free motion in high temperatures, dirt, contamination, vibration, and shock loads. Eight pre-positioned mounting holes allow direct fastening to machinery or support structures.
- Twin open-shelled pillow block bearing
- Precision ID running clearance: 0.0005" per side
- Twin-length design resembles two standard blocks positioned end to end
- Greater bearing surface for added shaft support and load-carrying capacity
- Open design provides clearance for rail-supported shafts and profiled rails
- Mountable aluminum alloy housing with 8 pre-positioned mounting holes
- Inserted open-shell Simplicity® plain bearing with anodized aluminum shell
- Self-lubricating FrelonGOLD® liner for maintenance-free harsh-duty operation
- No external grease required, which avoids lubricant washout and buildup
- Bonded-liner design resists dirt, vibration, shock loads, and debris ingress
- Temperature rating: -400°F/+400°F or -240°C/+204°C
- Optional liners: chemical-resistant Frelon®J and FDA-compliant Frelon®
- Valuable when downtime replacement cost is more than the pillow block itself

