Bearing tolerances and clearances
- Tolerances: Normal, P6, P5
- Internal clearance: Single row track rollers, Double row track rollers
gothic arch groove profiled track rollers LFR5201-14-2Z, double row, shields on both side
chmotion LFR5201-14-2Z Gothic Arch Track Roller
High-Capacity Double-Row Shielded Roller for Precision Linear Guides
Key Features
Ultra-high static load (12,120N F0r): Engineered for extreme load conditions
Optimized shield design (2Z): Non-contact protection with minimal friction
Enhanced geometry: 34mm rolling contact diameter (Da) + 24mm shaft center (AT)
Precision components: 52100 bearing steel with Nylon 66 retainer
Wide temperature range: -30°C to +120°C with Kyodo Yushi Multemp SRL grease
Critical Specifications
Bore diameter: 12 mm
Outside diameter: 39.9 mm
Width: 18 mm
Weight: 0.095 kg
Radial runout: P5 (ABEC-5) precision grade
Industry Compliance
Typical Applications
Heavy industrial automation
Press machine linear guides
Material handling equipment
Packaging machinery rails
| dS | 14 mm | Linear shaft diameter |
| d | 12 mm | Bore diameter |
| D | 39.9 mm | Outside diameter |
| B | 20 mm | Inner ring width |
| C | 18 mm | Outer ring width |
| AT | 24 mm | Linear shaft center to bore center |
| Da | 34 mm | Rolling contact diameter |
| rmin | 0.3 mm | Chamfer dimension |
| Cr | 8900 N | Effective dynamic load rating as track roller (radial) |
| C0r | 5000 N | Effective static load rating as track roller (radial) |
| Pu | 250 N | Fatigue limit load |
| Fr | 6700 N | Maximum dynamic load rating as track roller (radial) |
| F0r | 12120 N | Maximum static load rating as track roller (radial) |
| ≈m | 0.095 kg | Weight |
| 52100 | 100Cr6 | GCr15 | Ring and ball material | |
| Nylon 66 | Retainer material | |
| Shields | Sealing solution | |
| Kyodo Yushi Multemp SRL | Grease | |
| -30ºC to +120ºC | Temperature range °C | |
| -22ºF to +250ºF | Temperature range °F | |
| N/A | Re-lubrication |
| P6 (ABEC-3) | Dimension tolerance | |
| P5 (ABEC-5) | Radial run-out | |
| Normal | Internal radial clearance |
| N/A | Concentric bolt | |
| N/A | Eccentric bolt |
| Compliant | RoHS | |
| Compliant | REACH |
| NIKO |
| LFR5201-14 2Z |
Bearing tolerances and clearances
