Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications11 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Series | 51268 | |
| Bore diameter | d | 340 mm |
| Outside diameter | D | 460 mm |
| Width | B | 96 mm |
| Reference speed | nref | 990 r/min |
| Limiting speed | nG | 920 r/min |
| Mass | ≈m | 48.2 kg |
| Precision class | PN — Normal (ISO 492:2023) | |
| Cage | MP — Solid brass cage, rolling element guided | |
| Minimum operating temperature | Tmin | -30 °C |
| Maximum operating temperature | Tmax | 200 °C |
Product characteristics3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Cage | MP | Solid brass cage, rolling element guided |
| Tolerance class | PN | Normal (ISO 492:2023) |
| Dimensional / heat stabilization | S1 | Rings dimensional stabilized up to 200° |
Main Dimensions & Performance Data9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Inner diameter shaft washer | d | 340 mm13.386 in |
| Outer diameter housing washer | D | 460 mm18.11 in |
| Height | T | 96 mm3.78 in |
| Basic dynamic load rating, axial | Ca | 620,000 N139,388.489 lbf |
| Basic static load rating, axial | C0a | 3,050,000 N685,701.439 lbf |
| Fatigue load limit, axial | Cua | 69,000 N15,512.59 lbf |
| Limiting speed | nG | 920 1/min |
| Reference speed | nϑr | 990 1/min |
| Mass | ≈m | 48.2 kg106.263 lbs |
Mounting dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum diameter shaft shoulder | da min | 412 mm16.22 in |
| Maximum diameter of housing shoulder | Da max | 388 mm15.276 in |
| Maximum filled radius | ra max | 2.5 mm0.098 in |
Dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum chamfer dimension | rmin | 3 mm0.118 in |
| Inner diameter housing washer | D1 | 345 mm13.583 in |
| Outer diameter shaft washer | d1 | 455 mm17.913 in |
Temperature range2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Operating temperature min. | Tmin | -30 °C-22 °F |
| Operating temperature max. | Tmax | 200 °C392 °F |
Calculation factors1 parameter
| Parameter | Symbol | Value |
|---|---|---|
| Minimum load factor | A | 49 |
Capabilities & suitability5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Axial load capacity in one direction | Yes | |
| Suitable for grease lubrication | Yes | |
| Suitable for oil lubrication | Yes | |
| Unsealed design | Yes | |
| Largebearing | Yes |
Manufacturer Identity10 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 394603 | |
| Brand | FAG | |
| Base Type | 51268 | |
| Old Designation | ["51268MP","51268-M"] | |
| X Life Marking | n.r. | |
| SAP material number | 0389693350000 | |
| Base product | 2305100101 | |
| Bearing X designation | 51268-MP | |
| Mounting Manager ID | 51268-MP | |
| Grease application ID | 51268-MP |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Axial deep groove ball bearing 512..-MP, single direction, solid brass cage | |
| Short Description | Axial deep groove ball bearing |
Technical Data17 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 340 mm | |
| Outside Diameter (D) | 460 mm | |
| Width (B) | 96 mm | |
| Basic Dynamic Load Rating, Axial (Ca) | 620,000 N | |
| Basic Static Load Rating, Axial (C0A) | 3,050,000 N | |
| Operating Temperature Min. (Tmin) | -30 °C | |
| Limiting Speed (Ng) | 920 1/min | |
| Operating Temperature Max. (Tmax) | 200 °C | |
| Reference Speed (Nϑr) | 990 1/min | |
| Minimum Diameter Shaft Shoulder (Da Min) | 412 mm | |
| Minimum Load Factor (A) | 49 | |
| Rip Diameter Shaft Washer (D1) | 455 mm | |
| Bore Diameter Housing Washer (D1) | 345 mm | |
| Maximum Diameter Of Housing Shoulder (Da Max) | 388 mm | |
| Minimum Chamfer Dimension (Rmin) | 3 mm | |
| Maximum Fillet Radius (Ra Max) | 2.5 mm | |
| Fatigue Load Limit, Axial (Cua) | 69,000 N |