Cam follower (stud-type track roller), with axial guidance, with cage, with axial plain washer, cylindrical OD, screwdriver slot, CF20UU;KR52XLL/3AS;MCFR-52-SX
| D | 52 mm | Outside diameter | 
| d | 20 mm | Stud diameter | 
| B | 66 mm | Overall width | 
| C | 24 mm | Outer ring width | 
| B1 | 40.5 mm | Length shank on stud | 
| B2 | 9 mm | Distance lubrication hole to flange ring | 
| C1 | 0.8 mm | Distance face outer ring to face thrust washer | 
| d1 | 36.5 mm | Outside diameter flange ring | 
| G | M20 x 1.5 | Thread stud | 
| G1 | 21 mm | Thread length | 
| M | 8 mm | Seat diameter for lubrication accessories | 
| M1 | 4 mm | Diameter of lubrication hole (shank) | 
| SW | 10 mm | Width across flats | 
| r min | 1 mm | Chamfer dimension outer ring | 
| C | 19.5 kN | Basic dynamic load rating | 
| C0 | 32 kN | Basic static load rating | 
| Pu | 3.4 kN | Fatigue load limit | 
| Fr | 16.8 kN | Maximum dynamic radial load | 
| F0r | 28.5 kN | Maximum static radial load | 
| nD G | 2400 r/min | Limiting speed | 
| ≈m | 0.47 kg | Weight | 
| Crowned | Outer ring profile | |
| Cage | Roller guide | |
| Centric | Stud type | |
| Axial plain washer | Sealing type | |
| 52100 | 100Cr6 | Outer ring material | |
| 52100 | 100Cr6 | Roller material | |
| 20CrMo (ASTM4118, SCM420) | Stud material | |
| 52100 | 100Cr6 | Axial guidance | |
| Lithium Soap Grease NLGI #2 | Grease | 
| Screwdriver slot | Mouting hole | |
| NIP A2x7.5 | Grease fitting | |
| M20 x 1.5 | Hexagonal nut | |
| 120 Nm | Recommended tightening torque | 
| -30ºC to + 80ºC | Temperature range °C | |
| -22ºF to + 176ºF | Temperature range °F | 
| IKO | THK | NTN | NSK | KOYO | McGill | Smith | 
| CF20UU |     CF20UU |     KR52XLL/3AS |     FCJS-52 |     KM20-1UUM |     MCFR-52-SX |     MCR-52-SC |