PB18 pillow ball insert bearing, spherical bushing, lubrication type, high carbon steel, zinc chromate plated, open enclosure, PB metric series, shaft diameter 18 mm, housing 42 mm, single unit

Spherical pillow ball insert bearing PB18 - single unit
✔️ Open insert pillowball, PB metric, shaft 18 mm, housing 42 mm

This PB18 spherical pillow ball insert bearing is a single high carbon steel unit with zinc chromate plating. It's designed for linear slide units, conveyor supports, and light machinery where shaft alignment varies.

✅ Type: Pillow ball insert, open enclosure, lubrication type
✅ Material: High carbon steel, zinc chromate plated
✅ Shaft diameter: 18 mm; Inner ring width: 23 mm; Housing dia: 42 mm
✅ Series: PB Metric Series, model PB18; sold as single unit; weight 0.350 lb

💡 What is a pillow ball insert bearing used for in linear slide units and misaligned shafts? These bearings provide spherical seating that lets a shaft pivot and correct angular misalignment while supporting radial loads in light to medium machinery. Quick take: - Accommodates angular misalignment in linear slide units, conveyor rollers, and idlers. - Offers straightforward lubrication and maintenance compared with sealed ball bearing options. - Good choice when a compact spherical bushing is preferred over ceramic or sealed alternatives for easy service and alignment control.