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 | 4304 | |
| Bore diameter | d | 20 mm |
| Outside diameter | D | 52 mm |
| Width | B | 21 mm |
| Basic dynamic load rating | C | 26 kN |
| Basic static load rating | C0 | 16.8 kN |
| Fatigue load limit | Pu | 0.87 kN |
| Reference speed | nref | 9300 r/min |
| Limiting speed | nG | 13100 r/min |
| Mass | ≈m | 0.212 kg |
| Precision class | PN — Normal (ISO 492:2023) | |
| Internal clearance | CN (Group N) — Normal internal clearance | |
| Cage | TVH — Solid cage made of glass-fiber reinforced polyamid PA66 | |
| 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 1Derived from ISO Normal; not a direct ABEC marking | |
| Mapping basis | ISO 492 / ANSI/ABMA 20The original manufacturer tolerance remains the controlling value. |
Product characteristics7 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Design variant | B | Bearing without filling slot |
| Tolerance class | PN | Normal (ISO 492:2023) |
| Changed internal design | B | |
| Cage | TVH | Solid cage made of glass-fiber reinforced polyamid PA66 |
| Lubricant | GA14 | Ball bearing grease, low noise |
| Dimensional / heat stabilization | SN | Rings dimensional stabilized up to 120° |
| Radial internal clearance | CN (Group N) | Normal internal clearance |
Main Dimensions & Performance Data9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 20 mm0.787 in |
| Outside diameter | D | 52 mm2.047 in |
| Width | B | 21 mm0.827 in |
| Basic dynamic load rating, radial | Cr | 26,000 N5,845.324 lbf |
| Basic static load rating, radial | C0r | 16,800 N3,776.978 lbf |
| Fatigue load limit, radial | Cur | 870 N195.594 lbf |
| Limiting speed | nG | 13,100 1/min |
| Reference speed | nϑr | 9,300 1/min |
| Mass | ≈m | 0.212 kg0.467 lbs |
Mounting dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum diameter shaft shoulder | da min | 27 mm1.063 in |
| Maximum diameter of housing shoulder | Da max | 45 mm1.772 in |
| Maximum fillet radius | ra max | 1 mm0.039 in |
Dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum chamfer dimension | rmin | 1.1 mm0.043 in |
| Shoulder diameter outer ring | D1 | 42.45 mm1.671 in |
| Shoulder diameter inner ring | d1 | 31.5 mm1.24 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 | 13 |
Capabilities & suitability5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Radial load capacity | Yes | |
| Axial load capacity in one direction | Yes | |
| Axial load capacity in both directions | Yes | |
| Suitable for grease lubrication | Yes | |
| Unsealed design | Yes |
Manufacturer Identity9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 357028 | |
| Brand | FAG | |
| Base Type | 4304 | |
| Old Designation | ["4304BB.TVH"] | |
| SAP material number | 0219415480000 | |
| Base product | 2305080102 | |
| Bearing X designation | 4304-BB-TVH | |
| Mounting Manager ID | 4304-BB-TVH | |
| Grease application ID | 4304-BB-TVH |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Deep groove ball bearing 43..-BB-TVH, double row, plastic cage | |
| Short Description | Deep groove ball bearing |
Technical Data17 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 20 mm | |
| Outside Diameter (D) | 52 mm | |
| Width (B) | 21 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 26,000 N | |
| Basic Static Load Rating, Radial (C0R) | 16,800 N | |
| Operating Temperature Min. (Tmin) | -20 °C | |
| Limiting Speed (Ng) | 13,100 1/min | |
| Operating Temperature Max. (Tmax) | 120 °C | |
| Reference Speed (Nϑr) | 9,300 1/min | |
| Calculation Factor (F0) | 13 | |
| Fatigue Load Limit, Radial (Cur) | 870 N | |
| Minimum Diameter Shaft Shoulder (Da Min) | 27 mm | |
| Shoulder Diameter Inner Ring (D1) | 31.5 mm | |
| Maximum Diameter Of Housing Shoulder (Da Max) | 45 mm | |
| Minimum Chamfer Dimension (Rmin) | 1.1 mm | |
| Maximum Fillet Radius (Ra Max) | 1 mm | |
| Shoulder Diameter Outer Ring (D1) | 42.45 mm |
