NAST20ZZR Metric Roller Follower Bearing, Separable Caged Type, 20 mm ID x 47 mm Roller, Shielded with Oil Hole, Crowned High Carbon Chrome Steel, Single Unit

Metric roller follower bearing, single unit, NAST20ZZR
✔️ 20 mm ID, 47 mm roller dia, separable caged, shielded, oil hole

This separable caged roller follower is built for cam, guide and indexing uses on linear slide units and conveyors. Single bearing pack for quick replacement and low-effort maintenance.

✅ Model: NAST20ZZR, NAST metric series
✅ Inside diameter: 20 mm
✅ Roller diameter: 47 mm; roller width: 19.8 mm
✅ Overall width: 20 mm; separable caged retainer
✅ Material: high carbon chrome steel, shielded (ZZ)
✅ Features: crowned roller surface, oil hole lubrication port
✅ Load capacity: dynamic 19,400 N; static 24,500 N
✅ Temp range: -20 to 120 C; single bearing pack
✅ Weight: 0.195 kg (approx); suitable for linear slide unit use

💡 How does a roller follower bearing improve linear slide unit guidance and longevity?
Roller followers provide rolling contact that is handy for smooth, accurate motion and reduced wear.
- Lowers friction compared with sliding contact and sealed ball bearing setups for smoother linear slide unit action
- Crowned rollers and shielded construction help maintain alignment, protect seals, and extend service life
- Separable caged design makes maintenance and replacement easy on conveyors, indexing machines, and automation equipment