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 | KR5204 | |
| Bore diameter | d | 20 mm |
| Outside diameter | D | 52 mm |
| Width | B | 63.6 mm |
| Basic dynamic load rating | C | 15.8 kN |
| Basic static load rating | C0 | 10.8 kN |
| Fatigue load limit | Pu | 0.55 kN |
| Limiting speed | nG | 5000 r/min |
| Mass | ≈m | 0.39 kg |
Manufacturer Identity5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 400778 | |
| Brand | INA | |
| Base Type | KR5204 | |
| Old Designation | ["KR 5204 NPPU"] | |
| X Life Marking | n.r. |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Stud type track rollers KR52..-2RS, double row self-retaining angular contact ball bearings with particularly thick-walled outer ring, ball and cage assembly, without eccentric collar and with a solid, long roller stud with external thread, axial guidance of outer ring is provided by the balls, lip seal on both sides, with axial sealing action, assembling aid hexagonal socket only on the flange side end face, no relubrication facility | |
| Short Description | Stud type track roller |
Technical Data17 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Fit Diameter Of Roller Stud / Stud (D1) | 20 mm | |
| Outside Diamater (D) | 52 mm | |
| Total Width (B) | 63.6 mm | |
| Basic Dynamic Load Rating, Radial (Cr W) | 15,800 N | |
| Basic Static Load Rating, Radial (C0R W) | 10,800 N | |
| Speed On Permanent Grease Lubrication (Nd G) | 5,000 1/min | |
| Maximum Witdh Of Thrust Washer (B1 Max) | 22.5 mm | |
| Bolt/Stud Length Effectively (B2) | 41.5 mm | |
| Width Of Flats (W) | 10 mm | |
| Width, Outer Ring (C) | 20.6 mm | |
| Protrusion Outer Ring To Thrust Washer (C1) | 1.5 mm | |
| Thread Length (Ig) | 21 mm | |
| Stop Diameter Of Thrust Washer (D2) | 26.8 mm | |
| Radius Of Outer Ring Outside Profile (R) | 500 mm | |
| Tightening Torque Nut (Ma) | 160 Nm | |
| Fatigue Load Limit, Radial (Cur W) | 550 N | |
| Minimum Chamfer Dimension (Rmin) | 1 mm |
