Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications17 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Series | 6305 | |
| Bore diameter | d | 25 mm |
| Outside diameter | D | 62 mm |
| Width | B | 17 mm |
| Basic dynamic load rating | C | 26.5 kN |
| Basic static load rating | C0 | 11.5 kN |
| Fatigue load limit | Pu | 0.79 kN |
| Reference speed | nref | 13500 r/min |
| Limiting speed | nG | 15100 r/min |
| Mass | ≈m | 0.225 kg |
| Precision class | P6 — Class 6 (ISO 492:2023) | |
| Internal clearance | C3 (Group 3) — Internal clearance larger than CN | |
| Sealing | 2Z — Non-contact shield on both sides | |
| Cage | JN — Steel sheet metal | |
| Lubricant | GA14 — Ball bearing grease, low noise | |
| Minimum operating temperature | Tmin | -20 °C |
| Maximum operating temperature | Tmax | 120 °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 | 2Z | Non-contact shield 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 | GA14 | Ball bearing grease, low noise |
| Radial internal clearance | C3 (Group 3) | Internal clearance larger than CN |
| Bore type | Z | Cylindrical |
Main Dimensions & Performance Data9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 25 mm0.984 in |
| Outside diameter | D | 62 mm2.441 in |
| Width | B | 17 mm0.669 in |
| Basic dynamic load rating, radial | Cr | 26,500 N5,957.734 lbf |
| Basic static load rating, radial | C0r | 11,500 N2,585.432 lbf |
| Fatigue load limit, radial | Cur | 790 N177.608 lbf |
| Limiting speed | nG | 15,100 1/min |
| Reference speed | nϑr | 13,500 1/min |
| Mass | ≈m | 0.225 kg0.496 lbs |
Mounting dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum diameter shaft shoulder | da min | 32 mm1.26 in |
| Maximum diameter of housing shoulder | Da max | 55 mm2.165 in |
| Maximum fillet radius | ra max | 1 mm0.039 in |
Dimensions5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum chamfer dimension | rmin | 1.1 mm0.043 in |
| Shoulder diameter outer ring | D1 | 51.55 mm2.03 in |
| Caliber diameter outer ring | D2 | 53.8 mm2.118 in |
| Shoulder diameter inner ring | d1 | 35.45 mm1.396 in |
| Caliber diameter inner ring | d2 | 34.12 mm1.343 in |
Temperature range2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Operating temperature min. | Tmin | -20 °C-4 °F |
| Operating temperature max. | Tmax | 120 °C248 °F |
Calculation factors1 parameter
| Parameter | Symbol | Value |
|---|---|---|
| Calculation factor | f0 | 12.4 |
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 | 1753605 | |
| Brand | FAG | |
| Base Type | 6305 | |
| X Life Marking | C | |
| SAP material number | 0955624000030 | |
| Base product | 2305080101 | |
| Bearing X designation | 6305-C-2Z-C3 |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Deep groove ball bearing 63..-C-2Z, single row, Generation C, shields, steel sheet metal cage | |
| Short Description | Deep groove ball bearing |
Technical Data19 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 25 mm | |
| Outside Diameter (D) | 62 mm | |
| Width (B) | 17 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 26,500 N | |
| Basic Static Load Rating, Radial (C0R) | 11,500 N | |
| Operating Temperature Min. (Tmin) | -20 °C | |
| Limiting Speed (Ng) | 15,100 1/min | |
| Operating Temperature Max. (Tmax) | 120 °C | |
| Reference Speed (Nϑr) | 13,500 1/min | |
| Calculation Factor (F0) | 12.4 | |
| Fatigue Load Limit, Radial (Cur) | 790 N | |
| Minimum Diameter Shaft Shoulder (Da Min) | 32 mm | |
| Shoulder Diameter Inner Ring (D1) | 35.45 mm | |
| Maximum Diameter Of Housing Shoulder (Da Max) | 55 mm | |
| Minimum Chamfer Dimension (Rmin) | 1.1 mm | |
| Caliber Diameter Inner Ring (D1) | 34.12 mm | |
| Maximum Fillet Radius (Ra Max) | 1 mm | |
| Shoulder Diameter Outer Ring (D1) | 51.55 mm | |
| Caliber Diameter Outer Ring (D1) | 53.8 mm |
