Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Series | KRE52 | |
| Bore diameter | d | 20 mm |
| Outside diameter | D | 52 mm |
| Width | B | 66 mm |
| Basic dynamic load rating | C | 16.7 kN |
| Basic static load rating | C0 | 29.5 kN |
| Fatigue load limit | Pu | 3.85 kN |
| Limiting speed | nG | 2400 r/min |
| Mass | ≈m | 0.49 kg |
Manufacturer Identity4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 399958 | |
| Brand | INA | |
| Base Type | KRE52 | |
| X Life Marking | n.r. |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Stud type track rollers KRE..-PP-A, single row needle roller bearings with particularly thick-walled outer ring, needle roller and cage assembly and a solid roller stud with fixing thread and a mounting aid, axial guidance of outer ring is provided by the plastic axial plain washers, contact flange and contact washer, three-stage sealing by plastic axial plain washer on both sides, with eccentric collar | |
| Short Description | Stud type track roller |
Technical Data21 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Fit Diameter Of Roller Stud / Stud (D1) | 20 mm | |
| Outside Diamater (D) | 52 mm | |
| Total Width (B) | 66 mm | |
| Basic Dynamic Load Rating, Radial (Cr W) | 16,700 N | |
| Basic Static Load Rating, Radial (C0R W) | 29,500 N | |
| Eccentricity (E) | 1 mm | |
| Speed On Permanent Grease Lubrication (Nd G) | 2,400 1/min | |
| Distance To Lubrication Hole (B3) | 9 mm | |
| Bolt/Stud Length Effectively (B2) | 40.5 mm | |
| Diameter Lubrication Hole (D3) | 4 mm | |
| Diameter Of Eccentric (De) | 24 mm | |
| Width, Outer Ring (C) | 24 mm | |
| Protrusion Outer Ring To Thrust Washer (C1) | 0.8 mm | |
| Thread Length (Ig) | 21 mm | |
| Nominal Dimension For Hexagonal Socket (W) | 10 mm | |
| Stop Diameter Of Thrust Washer (D2) | 36.5 mm | |
| Tightening Torque Nut (Ma) | 120 Nm | |
| Fatigue Load Limit, Radial (Cur W) | 3,850 N | |
| Minimum Chamfer Dimension (Rmin) | 1 mm | |
| Witdh Of Thrust Washer (B1) | 25.6 mm | |
| Width, Eccentric (Be) | 18 mm |
