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 | HCB7230 | |
| Bore diameter | d | 150 mm |
| Outside diameter | D | 270 mm |
| Width | B | 45 mm |
| Basic dynamic load rating | C | 232 kN |
| Basic static load rating | C0 | 170 kN |
| Fatigue load limit | Pu | 9.5 kN |
| Mass | ≈m | 8.82 kg |
| Precision class | P4S — Tolerance class P4S, FAG standard better than P4 to ISO 492:2023 | |
| Sealing | Without | |
| 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 | C | Contact angle 15° |
| Type of Seal | Without | |
| Shape of outer surface | Standard | |
| 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 | 150 mm5.906 in |
| Outside diameter | D | 270 mm10.63 in |
| Width | B | 45 mm1.772 in |
| Basic dynamic load rating, radial | Cr | 232,000 N52,158.273 lbf |
| Basic static load rating, radial | C0r | 170,000 N38,219.424 lbf |
| Fatigue load limit, radial | Cur | 9,500 N2,135.791 lbf |
| Limiting speed for grease lubrication | nG Grease | 6,000 1/min |
| Limiting speed for oil lubrication | nG Oil | 8,500 1/min |
| Mass | ≈m | 8.82 kg19.445 lbs |
Mounting dimensions11 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Diameter shaft shoulder | da | 178 mm7.008 in |
| Diameter shaft shoulder clearance | da | h12 |
| Shoulder diameter outer ring | Da | 241.5 mm9.508 in |
| Shoulder diameter outer ring clearance | Da | H12 |
| Maximum recess radius | ra max | 2.5 mm0.098 in |
| Maximum recess radius | ra1 max | 2.5 mm0.098 in |
| Minimum diameter injection pitch | Etk min | 190.9 mm7.516 in |
| Maximum diameter injection pitch | Etk max | 201.9 mm7.949 in |
| Minimum diameter injection pitch | Etk1 min | 190.9 mm7.516 in |
| Maximum diameter injection pitch | Etk1 max | 201.9 mm7.949 in |
| Distance between the apexes of the pressure cones | a | 50.6 mm1.992 in |
Dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum chamfer dimension | rmin | 3 mm0.118 in |
| Minimum chamfer dimension | r1 min | 3 mm0.118 in |
| Contact angle | α | 15 ° |
Temperature range2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Operating temperature min. | Tmin | -30 °C-22 °F |
| Operating temperature max. | Tmax | 100 °C212 °F |
Capabilities & suitability5 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 |
Manufacturer Identity7 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 1741081 | |
| Brand | FAG | |
| Base Type | HCB7230 | |
| X Life Marking | n.r. | |
| Base product | 2305080312 | |
| Bearing X designation | HCB7230-C-T-P4S | |
| Mounting Manager ID | HCB7230-C-T-P4S |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Spindle bearing HCB72..-C, adjusted, in pairs or sets, contact angle α = 15°, with ceramic balls, restricted tolerances | |
| Short Description | Spindle bearing |
Additional information9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Preload force light | FV L | 761 N171.088 lbf |
| Preload force medium | FV M | 2,440 N548.561 lbf |
| Preload force heavy | FV H | 4,958 N1,114.658 lbf |
| Lift-off force light | KaE L | 2,262 N508.543 lbf |
| Lift-off force medium | KaE M | 7,633 N1,716.052 lbf |
| Lift-off force heavy | KaE H | 16,272 N3,658.273 lbf |
| Axial rigidity light | ca L | 143 N/µm |
| Axial rigidity medium | ca M | 230 N/µm |
| Axial rigidity heavy | ca H | 317 N/µm |
Technical Data31 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 150 mm | |
| Outside Diameter (D) | 270 mm | |
| Width (B) | 45 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 232,000 N | |
| Basic Static Load Rating, Radial (C0R) | 170,000 N | |
| Operating Temperature Min. (Tmin) | -30 °C | |
| Operating Temperature Max. (Tmax) | 100 °C | |
| Axial Rigidity Heavy (Ca H) | 317 N/µm | |
| Axial Rigidity Light (Ca L) | 143 N/µm | |
| Axial Rigidity Medium (Ca M) | 230 N/µm | |
| Diameter Shaft Shoulder (Da) | 178 mm | |
| Lift Off Force Heavy (Kae H) | 16,272 N | |
| Lift Off Force Light (Kae L) | 2,262 N | |
| Lift Off Force Medium (Kae M) | 7,633 N | |
| Limiting Speed For Oil Lubrication (Ng Oil) | 8,500 1/min | |
| Maximum Diameter Injection Pitch (Etk1 Ma) | 201.9 mm | |
| Maximum Diameter Injection Pitch (Etk Max) | 201.9 mm | |
| Minimum Diameter Injection Pitch (Etk1 Mi) | 190.9 mm | |
| Preload Force Heavy (Fv H) | 4,958 N | |
| Preload Force Light (Fv L) | 761 N | |
| Preload Force Medium (Fv M) | 2,440 N | |
| Shoulder Diameter Outer Ring (Da) | 241.5 mm | |
| Limiting Speed For Grease Lubrication (Ng Grea) | 6,000 1/min | |
| Minimum Diameter Injection Pitch (Etk Min) | 190.9 mm | |
| Fatigue Load Limit, Radial (Cur) | 9,500 N | |
| Minimum Chamfer Dimension (Rmin) | 3 mm | |
| Maximum Fillet Radius (Ra Max) | 2.5 mm | |
| Maximum Recess Radius (Ra1 Max) | 2.5 mm | |
| Minimum Chamfer Dimension (R1 Min) | 3 mm | |
| Contact Angle (Α) | 15 ° | |
| Distance Between The Apexes Of The Pressure Cones (A) | 50.6 mm |
