Journal used for LFR track roller linear guidance, concentric, carbon steel, oxide black finish or zinc finish
| LFR | LFR50/8-6-2Z | LFR Track Roller |
| concentric(stationary) | Adjustability |
| d | 8 mm | Shaft diamter |
| G1 | M8 | Mounting thread |
| L3 | 15 mm | Total mounting width |
| L | 28.3 mm | Overall width |
| L2 | 24.3 mm | Shank width |
| W | 12 mm | Width across flats Bolt head |
| S | 1 mm | Washer height-1 |
| DS | 14 mm | Washer diameter-1 |
| ≈m | 0.02 kg | Weight |
| a | 14 mm | Diamemer bolt center to linear shaft center |
| b | 12 mm | Width bearing and washer |
| c | 6.5 mm | Width mounting surface to running groove center |
| h | 16 mm | Width total mounting |
