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 | B7234 | |
| Bore diameter | d | 170 mm |
| Outside diameter | D | 310 mm |
| Width | B | 52 mm |
| Basic dynamic load rating | C | 300 kN |
| Basic static load rating | C0 | 255 kN |
| Fatigue load limit | Pu | 17.3 kN |
| Mass | ≈m | 15.7 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 |
|---|---|---|
| Preload class | L | Preload light |
| Contact angle | C | Contact angle 15° |
| Tolerance class | P4S | Tolerance class P4S, FAG standard better than P4 to ISO 492:2023 |
| Type of Seal | Without | |
| Shape of outer surface | Standard | |
| Cage | T | Laminated fabric cage |
| Arrangement bearing set | U | Single bearing |
Main Dimensions & Performance Data9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 170 mm6.693 in |
| Outside diameter | D | 310 mm12.205 in |
| Width | B | 52 mm2.047 in |
| Basic dynamic load rating, radial | Cr | 300,000 N67,446.043 lbf |
| Basic static load rating, radial | C0r | 255,000 N57,329.137 lbf |
| Fatigue load limit, radial | Cur | 17,300 N3,889.388 lbf |
| Limiting speed for grease lubrication | nG Grease | 3,800 1/min |
| Limiting speed for oil lubrication | nG Oil | 5,600 1/min |
| Mass | ≈m | 15.7 kg34.613 lbs |
Mounting dimensions11 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Diameter shaft shoulder | da | 205 mm8.071 in |
| Diameter shaft shoulder clearance | da | h12 |
| Shoulder diameter outer ring | Da | 275 mm10.827 in |
| Shoulder diameter outer ring clearance | Da | H12 |
| Maximum recess radius | ra max | 3 mm0.118 in |
| Maximum recess radius | ra1 max | 3 mm0.118 in |
| Minimum diameter injection pitch | Etk min | 217.1 mm8.547 in |
| Maximum diameter injection pitch | Etk max | 230.4 mm9.071 in |
| Minimum diameter injection pitch | Etk1 min | 217.1 mm8.547 in |
| Maximum diameter injection pitch | Etk1 max | 230.4 mm9.071 in |
| Distance between the apexes of the pressure cones | a | 58.2 mm2.291 in |
Dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum chamfer dimension | rmin | 4 mm0.157 in |
| Minimum chamfer dimension | r1 min | 4 mm0.157 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 | 1741037 | |
| Brand | FAG | |
| Base Type | B7234 | |
| X Life Marking | n.r. | |
| Base product | 2305080311 | |
| Bearing X designation | B7234-C-T-P4S | |
| Mounting Manager ID | B7234-C-T-P4S |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Spindle bearing B72..-C, adjusted, in pairs or sets, contact angle α = 15°, restricted tolerances | |
| Short Description | Spindle bearing |
Additional information9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Preload force light | FV L | 1,864 N419.065 lbf |
| Preload force medium | FV M | 5,749 N1,292.491 lbf |
| Preload force heavy | FV H | 11,422 N2,567.896 lbf |
| Lift-off force light | KaE L | 5,698 N1,281.025 lbf |
| Lift-off force medium | KaE M | 18,828 N4,232.914 lbf |
| Lift-off force heavy | KaE H | 39,747 N8,935.926 lbf |
| Axial rigidity light | ca L | 189 N/µm |
| Axial rigidity medium | ca M | 311 N/µm |
| Axial rigidity heavy | ca H | 436 N/µm |
Technical Data31 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 170 mm | |
| Outside Diameter (D) | 310 mm | |
| Width (B) | 52 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 300,000 N | |
| Basic Static Load Rating, Radial (C0R) | 255,000 N | |
| Operating Temperature Min. (Tmin) | -30 °C | |
| Operating Temperature Max. (Tmax) | 100 °C | |
| Axial Rigidity Heavy (Ca H) | 436 N/µm | |
| Axial Rigidity Light (Ca L) | 189 N/µm | |
| Axial Rigidity Medium (Ca M) | 311 N/µm | |
| Diameter Shaft Shoulder (Da) | 205 mm | |
| Lift Off Force Heavy (Kae H) | 39,747 N | |
| Lift Off Force Light (Kae L) | 5,698 N | |
| Lift Off Force Medium (Kae M) | 18,828 N | |
| Limiting Speed For Oil Lubrication (Ng Oil) | 5,600 1/min | |
| Maximum Diameter Injection Pitch (Etk1 Ma) | 230.4 mm | |
| Maximum Diameter Injection Pitch (Etk Max) | 230.4 mm | |
| Minimum Diameter Injection Pitch (Etk1 Mi) | 217.1 mm | |
| Preload Force Heavy (Fv H) | 11,422 N | |
| Preload Force Light (Fv L) | 1,864 N | |
| Preload Force Medium (Fv M) | 5,749 N | |
| Shoulder Diameter Outer Ring (Da) | 275 mm | |
| Limiting Speed For Grease Lubrication (Ng Grea) | 3,800 1/min | |
| Minimum Diameter Injection Pitch (Etk Min) | 217.1 mm | |
| Fatigue Load Limit, Radial (Cur) | 17,300 N | |
| Minimum Chamfer Dimension (Rmin) | 4 mm | |
| Maximum Fillet Radius (Ra Max) | 3 mm | |
| Maximum Recess Radius (Ra1 Max) | 3 mm | |
| Minimum Chamfer Dimension (R1 Min) | 4 mm | |
| Contact Angle (Α) | 15 ° | |
| Distance Between The Apexes Of The Pressure Cones (A) | 58.2 mm |