Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications7 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Series | ZKLN2557 | |
| Bore diameter | d | 25 mm |
| Outside diameter | D | 57 mm |
| Width | B | 28 mm |
| Mass | ≈m | 0.354 kg |
| Minimum operating temperature | Tmin | -30 °C |
| Maximum operating temperature | Tmax | 120 °C |
Manufacturer Identity4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 395303 | |
| Brand | INA | |
| Base Type | ZKLN2557 | |
| Old Designation | ["ZKLN 2557.2RS PE"] |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Axial angular contact ball bearings ZKLN..-2RS-PE, Increased tolerances, double direction, lip seals on both sides | |
| Short Description | Axial angular contact ball bearing |
Technical Data29 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 25 mm | |
| Outside Diamater (D) | 57 mm | |
| Total Width (B) | 28 mm | |
| Basic Dynamic Load Rating, Axial (Ca) | 27,500 N | |
| Basic Static Load Rating, Axial (C0A) | 55,000 N | |
| Operating Temperature Min. (Tmin) | -30 °C | |
| Limiting Speed For Grease Lubrication (Ng Grea) | 5,700 1/min | |
| Operating Temperature Max. (Tmax) | 120 °C | |
| Tilting Rigidity (Ckl) | 200 Nm/mrad | |
| Fatigue Load Limit, Axial (Cua) | 2,500 N | |
| Bore Diameter Lower Tolerance (Bore Diamete) | -0.01 mm | |
| Contact Angle (Α) | 60 ° | |
| Minimum Diameter Shaft (Da Min) | 32 mm | |
| Width Lower Tolerance (Width Lower) | -0.25 mm | |
| Minimum Chamfer Dimension (R1 Min) | 0.6 mm | |
| Width Upper Tolerance (Width Upper) | 0 mm | |
| Maximum Diameter Of Housing (Da Max) | 48 mm | |
| Bore Diameter Upper Tolerance (Bore Diamete) | 0 mm | |
| Rib Diameter Inner Ring (D1) | 40.5 mm | |
| Required Locknut Force Axial (Required Loc) | 9,123 N | |
| Rigidity Axial (Cal) | 750 N/µm | |
| Outside Diameter Lower Tolerance (Outside Diam) | -0.013 mm | |
| Tightening Torque For The Recommended Ina Precision Locknut (Ma) | 25 Nm | |
| Bearing Frictional Torque (Mr) | 0.4 Nm | |
| Minimum Chamfer Dimension (Rmin) | 0.3 mm | |
| Axial Runout (Axial Runout) | 5 µm | |
| Thermally Safe Operating Speed (Nϑ) | 2,600 1/min | |
| Mass Moment Of Inertia (Mm) | 0.486 kg*cm2 | |
| Outside Diameter Upper Tolerance (Outside Diam) | 0 mm |
