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 | 6308 | |
| Bore diameter | d | 40 mm |
| Outside diameter | D | 90 mm |
| Width | B | 23 mm |
| Basic dynamic load rating | C | 50 kN |
| Basic static load rating | C0 | 25 kN |
| Fatigue load limit | Pu | 1.73 kN |
| Limiting speed | nG | 7400 r/min |
| Mass | ≈m | 0.626 kg |
| Precision class | P6 — Class 6 (ISO 492:2023) | |
| Internal clearance | C3 (Group 3) — Internal clearance larger than CN | |
| Sealing | 2HRS — Contact seal on both sides | |
| Cage | JN — Steel sheet metal | |
| Lubricant | L069 — Low noise high-temperature grease, interchangeable with grease L207 | |
| Minimum operating temperature | Tmin | -30 °C |
| Maximum operating temperature | Tmax | 100 °C |
Precision classification2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Radial ball bearing tolerance equivalent | ABEC 3Derived from ISO P6; not a direct ABEC marking | |
| Mapping basis | ISO 492 / ANSI/ABMA 20The original manufacturer tolerance remains the controlling value. |
Product characteristics9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Version code | >V | Not marked on bearing |
| Changed internal design | C | GenerationC |
| Type of Seal | 2HRS | Contact seal on both sides |
| Cage | JN | Steel sheet metal |
| Tolerance class | P6 | Class 6 (ISO 492:2023) |
| Dimensional / heat stabilization | SN | Rings dimensional stabilized up to 120° |
| Lubricant | L069 | Low noise high-temperature grease, interchangeable with grease L207 |
| Radial internal clearance | C3 (Group 3) | Internal clearance larger than CN |
| Bore type | Z | Cylindrical |
Main Dimensions & Performance Data8 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 40 mm1.575 in |
| Outside diameter | D | 90 mm3.543 in |
| Width | B | 23 mm0.906 in |
| Basic dynamic load rating, radial | Cr | 50,000 N11,241.007 lbf |
| Basic static load rating, radial | C0r | 25,000 N5,620.504 lbf |
| Fatigue load limit, radial | Cur | 1,730 N388.939 lbf |
| Limiting speed | nG | 7,400 1/min |
| Mass | ≈m | 0.626 kg1.38 lbs |
Mounting dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum diameter shaft shoulder | da min | 49 mm1.929 in |
| Maximum diameter of housing shoulder | Da max | 81 mm3.189 in |
| Maximum fillet radius | ra max | 1.5 mm0.059 in |
Dimensions5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum chamfer dimension | rmin | 1.5 mm0.059 in |
| Shoulder diameter outer ring | D1 | 75.54 mm2.974 in |
| Caliber diameter outer ring | D2 | 78.61 mm3.095 in |
| Shoulder diameter inner ring | d1 | 55.08 mm2.169 in |
| Caliber diameter inner ring | d2 | 52.28 mm2.058 in |
Temperature range2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Operating temperature min. | Tmin | -30 °C-22 °F |
| Operating temperature max. | Tmax | 100 °C212 °F |
Calculation factors1 parameter
| Parameter | Symbol | Value |
|---|---|---|
| Calculation factor | f0 | 13 |
Capabilities & suitability6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Radial load capacity | Yes | |
| Axial load capacity in one direction | Yes | |
| Axial load capacity in both directions | Yes | |
| Lifetimelubricationfreedomfrommaintenance | Yes | |
| Suitable for grease lubrication | Yes | |
| Sealedonbothsides | Yes |
Manufacturer Identity7 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 2874672 | |
| Brand | FAG | |
| Base Type | 6308 | |
| X Life Marking | C | |
| SAP material number | 3019103320030 | |
| Base product | 2305080101 | |
| Bearing X designation | 6308-C-2HRS-L069-C3 |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Deep groove ball bearing 63..-C-2HRS, single row, Generation C, seals, steel sheet metal cage | |
| Short Description | Deep groove ball bearing |
Technical Data18 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 40 mm | |
| Outside Diameter (D) | 90 mm | |
| Width (B) | 23 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 50,000 N | |
| Basic Static Load Rating, Radial (C0R) | 25,000 N | |
| Operating Temperature Min. (Tmin) | -30 °C | |
| Limiting Speed (Ng) | 7,400 1/min | |
| Operating Temperature Max. (Tmax) | 100 °C | |
| Calculation Factor (F0) | 13 | |
| Fatigue Load Limit, Radial (Cur) | 1,730 N | |
| Minimum Diameter Shaft Shoulder (Da Min) | 49 mm | |
| Shoulder Diameter Inner Ring (D1) | 55.08 mm | |
| Maximum Diameter Of Housing Shoulder (Da Max) | 81 mm | |
| Minimum Chamfer Dimension (Rmin) | 1.5 mm | |
| Caliber Diameter Inner Ring (D1) | 52.28 mm | |
| Maximum Fillet Radius (Ra Max) | 1.5 mm | |
| Shoulder Diameter Outer Ring (D1) | 75.54 mm | |
| Caliber Diameter Outer Ring (D1) | 78.61 mm |
