Bearing tolerances and clearances
- Tolerances: Normal, P6, P5
- Internal clearance: Single row track rollers, Double row track rollers
gothic arch groove profiled track rollers LFR5201-12-2Z, double row, shields on both side
chmotion LFR5201-12-2Z Gothic Arch Track Roller
Double-Row Shielded Roller for Precision Linear Motion Systems
Key Features
12mm bore with shields (2Z): Non-contact protection against dust/debris
High-load capacity: 8200N max static load (F0r) + 4500N max dynamic load (Fr)
Optimized geometry: 33.1mm rolling contact diameter (Da) for smooth operation
Precision engineering: P6 (ABEC-3) dimensional tolerance + P5 (ABEC-5) runout
Bolt-ready design: Compatible with LFZ12x45A1/LFE12x45A1 mounting bolts
Core Specifications
Bore: 12 mm
OD: 35 mm
Width: 15.9 mm
Shaft center: 21.75 mm (AT)
Weight: 0.085 kg
Temperature: -30°C to +120°C
Cross-Reference
Industrial Applications
CNC machine guideways
Packaging equipment rails
Material handling systems
Printing machinery linear guides
| dS | 12 mm | Linear shaft diameter |
| d | 12 mm | Bore diameter |
| D | 35 mm | Outside diameter |
| B | 15.9 mm | Inner ring width |
| C | 15.9 mm | Outer ring width |
| AT | 21.75 mm | Linear shaft center to bore center |
| Da | 33.1 mm | Rolling contact diameter |
| rmin | 0.6 mm | Chamfer dimension |
| Cr | 8300 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 | 4500 N | Maximum dynamic load rating as track roller (radial) |
| F0r | 8200 N | Maximum static load rating as track roller (radial) |
| ≈m | 0.085 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 |
| LFZ12x45A1 | Concentric bolt | |
| LFE12x45A1 | Eccentric bolt |
| Compliant | RoHS | |
| Compliant | REACH |
| INA | NIKO | NADELLA | JESA |
| LFR5201-12 KDD LFR5201-12-2Z | LFR5201-12 2Z | GLA35.12 | LRG 12-35-12 2RZ |
Bearing tolerances and clearances
