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LFR50/5-4NPP 5mm ID x 4mm U-Groove Track Roller Bearing
LFR50/5-4NPP U-Groove Guide Bearing
✔️ 4mm ID x 16mm OD - Track Roller for Linear Motion
The LFR50/5-4NPP is a compact U-groove track roller bearing made for guiding systems that ride along round shafts or tracks. With a 4mm inner diameter and 16mm outer diameter, it's a popular choice for small linear systems, 3D printers, and automated setups needing smooth motion in tight spots.
✅ 1 U-groove guide bearing per pack
✅ Inner diameter (dw): 4mm
✅ U-groove diameter: 5mm
✅ Outer diameter (D): 16mm
✅ Width (C): 7mm
✅ Overall width (B): 8mm
✅ Flange width (A): 9mm
✅ Max corner radius (rs): 0.2mm
✅ Load rating Cw: 1.27 kN
✅ Load rating Cow: 0.82 kN
💡 What are U-groove bearings used for in linear motion systems?
They guide movement smoothly along round shafts or rails, even in compact or curved tracks.
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Perfect for CNC, 3D printers, and guide rail systems
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U-groove design grips round tracks without slipping
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Handles radial and axial loads with stability
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Low friction and quiet operation
Looking for tight, clean guidance on your track system? This bearing keeps you locked in and rolling - snag one today and tighten up your motion game!