Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications10 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 40 mm |
| Outside diameter | D | 68 mm |
| Width | B | 19 mm |
| Reference speed | nref | 6900 r/min |
| Limiting speed | nG | 5500 r/min |
| Mass | ≈m | 0.268 kg |
| Precision class | PN — Normal (ISO 492:2023) | |
| Cage | JP — Steel sheet metal | |
| Minimum operating temperature | Tmin | -30 °C |
| Maximum operating temperature | Tmax | 150 °C |
Product characteristics3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Cage | JP | Steel sheet metal |
| Tolerance class | PN | Normal (ISO 492:2023) |
| Dimensional / heat stabilization | S0 | Rings dimensional stabilized up to 150° |
Main Dimensions & Performance Data9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Inner diameter shaft washer | d | 40 mm1.575 in |
| Outer diameter housing washer | D | 68 mm2.677 in |
| Height | T | 19 mm0.748 in |
| Basic dynamic load rating, axial | Ca | 44,000 N9,892.086 lbf |
| Basic static load rating, axial | C0a | 97,000 N21,807.554 lbf |
| Fatigue load limit, axial | Cua | 4,400 N989.209 lbf |
| Limiting speed | nG | 5,500 1/min |
| Reference speed | nϑr | 6,900 1/min |
| Mass | ≈m | 0.268 kg0.591 lbs |
Mounting dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum diameter shaft shoulder | da min | 57 mm2.244 in |
| Maximum diameter of housing shoulder | Da max | 51 mm2.008 in |
| Maximum filled radius | ra max | 1 mm0.039 in |
Dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum chamfer dimension | rmin | 1 mm0.039 in |
| Inner diameter housing washer | D1 | 42 mm1.654 in |
| Outer diameter shaft washer | d1 | 68 mm2.677 in |
Temperature range2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Operating temperature min. | Tmin | -30 °C-22 °F |
| Operating temperature max. | Tmax | 150 °C302 °F |
Calculation factors1 parameter
| Parameter | Symbol | Value |
|---|---|---|
| Minimum load factor | A | 0.05 |
Capabilities & suitability4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Axial load capacity in one direction | Yes | |
| Suitable for grease lubrication | Yes | |
| Suitable for oil lubrication | Yes | |
| Unsealed design | Yes |
Manufacturer Identity9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 394538 | |
| Brand | FAG | |
| Base Type | 51208 | |
| X Life Marking | n.r. | |
| SAP material number | 0167150550000 | |
| Base product | 2305100101 | |
| Bearing X designation | 51208 | |
| Mounting Manager ID | 51208 | |
| Grease application ID | 51208 |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Axial deep groove ball bearing 512, single direction, steel sheet metal cage | |
| Short Description | Axial deep groove ball bearing |
Technical Data17 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 40 mm | |
| Outside Diameter (D) | 68 mm | |
| Width (B) | 19 mm | |
| Basic Dynamic Load Rating, Axial (Ca) | 44,000 N | |
| Basic Static Load Rating, Axial (C0A) | 97,000 N | |
| Operating Temperature Min. (Tmin) | -30 °C | |
| Limiting Speed (Ng) | 5,500 1/min | |
| Operating Temperature Max. (Tmax) | 150 °C | |
| Reference Speed (Nϑr) | 6,900 1/min | |
| Minimum Diameter Shaft Shoulder (Da Min) | 57 mm | |
| Minimum Load Factor (A) | 0.05 | |
| Rip Diameter Shaft Washer (D1) | 68 mm | |
| Bore Diameter Housing Washer (D1) | 42 mm | |
| Maximum Diameter Of Housing Shoulder (Da Max) | 51 mm | |
| Minimum Chamfer Dimension (Rmin) | 1 mm | |
| Maximum Fillet Radius (Ra Max) | 1 mm | |
| Fatigue Load Limit, Axial (Cua) | 4,400 N |
