Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications16 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Series | 71976 | |
| Bore diameter | d | 380 mm |
| Outside diameter | D | 520 mm |
| Width | B | 65 mm |
| Basic dynamic load rating | C | 400 kN |
| Basic static load rating | C0 | 720 kN |
| Fatigue load limit | Pu | 21.1 kN |
| Reference speed | nref | 1110 r/min |
| Limiting speed | nG | 1760 r/min |
| Mass | ≈m | 41.7 kg |
| Precision class | P5 — Class 5 (ISO 492:2023) | |
| Sealing | Without — Not sealed | |
| Cage | MP — Solid brass cage, ball guided | |
| Lubricant | Without — Bearing not greased | |
| Minimum operating temperature | Tmin | -30 °C |
| Maximum operating temperature | Tmax | 200 °C |
Precision classification2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Radial ball bearing tolerance equivalent | ABEC 5Derived from ISO P5; not a direct ABEC marking | |
| Mapping basis | ISO 492 / ANSI/ABMA 20The original manufacturer tolerance remains the controlling value. |
Product characteristics6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Type of Seal | Without | Not sealed |
| Cage | MP | Solid brass cage, ball guided |
| Tolerance class | P5 | Class 5 (ISO 492:2023) |
| Dimensional / heat stabilization | S1 | Rings dimensional stabilized up to 200° |
| Bearing with matched conditions for fitting in pairs | UL | Bearing set with light preload |
| Lubricant | Without | Bearing not greased |
Main Dimensions & Performance Data9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 380 mm14.961 in |
| Outside diameter | D | 520 mm20.472 in |
| Width | B | 65 mm2.559 in |
| Basic dynamic load rating, radial | Cr | 400,000 N89,928.058 lbf |
| Basic static load rating, radial | C0r | 720,000 N161,870.504 lbf |
| Fatigue load limit, radial | Cur | 21,100 N4,743.705 lbf |
| Limiting speed | nG | 1,760 1/min |
| Reference speed | nϑr | 1,110 1/min |
| Mass | ≈m | 41.7 kg91.933 lbs |
Mounting dimensions5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum diameter of shaft shoulder | da min | 394.6 mm15.535 in |
| Maximum diameter of housing shoulder | Da max | 505.4 mm19.898 in |
| Maximum diameter of housing shoulder | Db max | 513 mm20.197 in |
| Maximum fillet radius of shaft | ra max | 3 mm0.118 in |
| Maximum fillet radius of housing | ra1 max | 1.5 mm0.059 in |
Dimensions6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum chamfer dimension | rmin | 4 mm0.157 in |
| Minimum chamfer dimension | r1 min | 1.5 mm0.059 in |
| Shoulder diameter on outer ring wide side face | D1 | 468 mm18.425 in |
| Shoulder diameter on inner ring wide side face | d1 | 432 mm17.008 in |
| Distance between the apexes of the pressure cones | a | 162.4 mm6.394 in |
| Contact angle | α | 30 ° |
Temperature range2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Operating temperature min. | Tmin | -30 °C-22 °F |
| Operating temperature max. | Tmax | 200 °C392 °F |
Capabilities & suitability6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Radial load capacity | Yes | |
| Axial load capacity in one direction | Yes | |
| Suitable for grease lubrication | Yes | |
| Suitable for oil lubrication | Yes | |
| Unsealed design | Yes | |
| Largebearing | Yes |
Manufacturer Identity8 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 359255 | |
| Brand | FAG | |
| Base Type | 71976 | |
| SAP material number | 0632667250000 | |
| Base product | 2305080301 | |
| Bearing X designation | 71976-MP-P5-UL | |
| Mounting Manager ID | 71976-MP-P5-UL | |
| Grease application ID | 71976-MP-P5-UL |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Angular contact ball bearing 719..-MP, single row, solid brass cage | |
| Short Description | Angular contact ball bearing |
Additional information3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Preload per set max. | Vmax | -16 µm-0.00063 in |
| Tolerance for axial clearance or preload per set | Tol(+) | 18 µm0.00071 in |
| Preload force | FV max | 3,077 N691.772 lbf |
Technical Data24 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 380 mm | |
| Outside Diameter (D) | 520 mm | |
| Width (B) | 65 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 400,000 N | |
| Basic Static Load Rating, Radial (C0R) | 720,000 N | |
| Operating Temperature Min. (Tmin) | -30 °C | |
| Limiting Speed (Ng) | 1,760 1/min | |
| Operating Temperature Max. (Tmax) | 200 °C | |
| Reference Speed (Nϑr) | 1,110 1/min | |
| Preload Force (Fv Max) | 3,077 N | |
| Preload Per Set Max. (Vmax) | -16 µm | |
| Maximum Diameter Of Housing Shoulder (Db Max) | 513 mm | |
| Tolerance For Axial Clearance Or Preload Per Set (Tol(+)) | 18 µm | |
| Fatigue Load Limit, Radial (Cur) | 21,100 N | |
| Minimum Diameter Shaft Shoulder (Da Min) | 394.6 mm | |
| Shoulder Diameter Inner Ring (D1) | 432 mm | |
| Maximum Diameter Of Housing Shoulder (Da Max) | 505.4 mm | |
| Minimum Chamfer Dimension (Rmin) | 4 mm | |
| Maximum Fillet Radius (Ra Max) | 3 mm | |
| Maximum Recess Radius (Ra1 Max) | 1.5 mm | |
| Shoulder Diameter Outer Ring (D1) | 468 mm | |
| Minimum Chamfer Dimension (R1 Min) | 1.5 mm | |
| Contact Angle (Α) | 30 ° | |
| Distance Between The Apexes Of The Pressure Cones (A) | 162.4 mm |