Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications13 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Series | HCB71910 | |
| Bore diameter | d | 50 mm |
| Outside diameter | D | 72 mm |
| Width | B | 12 mm |
| Basic dynamic load rating | C | 18.6 kN |
| Basic static load rating | C0 | 10.8 kN |
| Fatigue load limit | Pu | 0.87 kN |
| Mass | ≈m | 0.10109 kg |
| Precision class | P4S — Tolerance class P4S, FAG standard better than P4 to ISO 492:2023 | |
| Sealing | Without — Not sealed | |
| Cage | T — Laminated fabric cage | |
| Minimum operating temperature | Tmin | -30 °C |
| Maximum operating temperature | Tmax | 100 °C |
Product characteristics7 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Contact angle | E | Contact angle 25° |
| Type of Seal | Without | Not sealed |
| Shape of outer surface | DLR | Direct lubrication, annular slots with O rings |
| Cage | T | Laminated fabric cage |
| Tolerance class | P4S | Tolerance class P4S, FAG standard better than P4 to ISO 492:2023 |
| Arrangement bearing set | U | Single bearing |
| Preload class | L | Preload light |
Main Dimensions & Performance Data9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 50 mm1.969 in |
| Outside diameter | D | 72 mm2.835 in |
| Width | B | 12 mm0.472 in |
| Basic dynamic load rating, radial | Cr | 18,600 N4,181.655 lbf |
| Basic static load rating, radial | C0r | 10,800 N2,428.058 lbf |
| Fatigue load limit, radial | Cur | 870 N195.594 lbf |
| Limiting speed for grease lubrication | nG Grease | 24,000 1/min |
| Limiting speed for oil lubrication | nG Oil | 36,000 1/min |
| Mass | ≈m | 101.09 g3.566 oz |
Mounting dimensions11 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Diameter shaft shoulder | da | 55 mm2.165 in |
| Diameter shaft shoulder clearance | da | h12 |
| Shoulder diameter outer ring | Da | 67.5 mm2.657 in |
| Shoulder diameter outer ring clearance | Da | H12 |
| Maximum recess radius | ra max | 0.6 mm0.024 in |
| Maximum recess radius | ra1 max | 0.15 mm0.006 in |
| Distance ring grooves | BN | 2.2 mm0.087 in |
| Distance ring grooves | BN1 | 2.2 mm0.087 in |
| Distance to lubrication hole | SN | 6.6 mm0.26 in |
| Width of lubricating groove | SB | 1.4 mm0.055 in |
| Distance between the apexes of the pressure cones | a | 20.2 mm0.795 in |
Dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum chamfer dimension | rmin | 0.6 mm0.024 in |
| Minimum chamfer dimension | r1 min | 0.6 mm0.024 in |
| Contact angle | α | 25 ° |
Temperature range2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Operating temperature min. | Tmin | -30 °C-22 °F |
| Operating temperature max. | Tmax | 100 °C212 °F |
Capabilities & suitability4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Radial load capacity | Yes | |
| Axial load capacity in one direction | Yes | |
| Suitable for oil lubrication | Yes | |
| Unsealed design | Yes |
Manufacturer Identity8 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 788589 | |
| Brand | FAG | |
| Base Type | HCB71910 | |
| X Life Marking | n.r. | |
| SAP material number | 0666793700000 | |
| Base product | 2305080312 | |
| Bearing X designation | HCB71910-EDLR-T-P4S | |
| Mounting Manager ID | HCB71910-EDLR-T-P4S |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Spindle bearing HCB719..-EDLR, adjusted, in pairs or sets, contact angle α = 25°, with ceramic balls, restricted tolerances, for direct oil feed via outer ring, with inserted O rings | |
| Short Description | Spindle bearing |
Additional information9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Preload force light | FV L | 40 N8.993 lbf |
| Preload force medium | FV M | 229 N51.484 lbf |
| Preload force heavy | FV H | 542 N121.853 lbf |
| Lift-off force light | KaE L | 115 N25.854 lbf |
| Lift-off force medium | KaE M | 671 N150.854 lbf |
| Lift-off force heavy | KaE H | 1,626 N365.558 lbf |
| Axial rigidity light | ca L | 80 N/µm |
| Axial rigidity medium | ca M | 148 N/µm |
| Axial rigidity heavy | ca H | 205 N/µm |
Technical Data31 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 50 mm | |
| Outside Diameter (D) | 72 mm | |
| Width (B) | 12 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 18,600 N | |
| Basic Static Load Rating, Radial (C0R) | 10,800 N | |
| Operating Temperature Min. (Tmin) | -30 °C | |
| Operating Temperature Max. (Tmax) | 100 °C | |
| Axial Rigidity Heavy (Ca H) | 205 N/µm | |
| Axial Rigidity Light (Ca L) | 80 N/µm | |
| Axial Rigidity Medium (Ca M) | 148 N/µm | |
| Diameter Shaft Shoulder (Da) | 55 mm | |
| Distance Ring Grooves (Bn1) | 2.2 mm | |
| Distance Ring Grooves (Bn) | 2.2 mm | |
| Distance To Lubrication Hole (Sn) | 6.6 mm | |
| Lift Off Force Heavy (Kae H) | 1,626 N | |
| Lift Off Force Light (Kae L) | 115 N | |
| Lift Off Force Medium (Kae M) | 671 N | |
| Limiting Speed For Oil Lubrication (Ng Oil) | 36,000 1/min | |
| Preload Force Heavy (Fv H) | 542 N | |
| Preload Force Light (Fv L) | 40 N | |
| Preload Force Medium (Fv M) | 229 N | |
| Shoulder Diameter Outer Ring (Da) | 67.5 mm | |
| Width Of Lubricating Groove (Sb) | 1.4 mm | |
| Limiting Speed For Grease Lubrication (Ng Grea) | 24,000 1/min | |
| Fatigue Load Limit, Radial (Cur) | 870 N | |
| Minimum Chamfer Dimension (Rmin) | 0.6 mm | |
| Maximum Fillet Radius (Ra Max) | 0.6 mm | |
| Maximum Recess Radius (Ra1 Max) | 0.15 mm | |
| Minimum Chamfer Dimension (R1 Min) | 0.6 mm | |
| Contact Angle (Α) | 25 ° | |
| Distance Between The Apexes Of The Pressure Cones (A) | 20.2 mm |
