Cross-brand designation analysis
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You entered 3304-A-2RS1TN9-C3MT33. This table explores the base group 3304; it does not preserve or approve every requested suffix. Search your complete marking first →
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One base designation across loaded brands
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Dimensions verified
“3304” across 3 loaded brands
At least two brands share the same bore, outside diameter and width. Use Custom Compare when you want to choose exact suffix variants yourself.
Technical comparison
Choose exact variants instead →Brand differences at a glance
| Parameter | SKF3304 A20 × 52 × 22.2 mm | FAG3304-BD-XL20 × 52 × 22.2 mm | KOYO330420 × 52 × 22.2 mm |
|---|---|---|---|
| Comparable specifications | |||
| Brand | SKF | FAG | KOYO |
| Designation | 3304 A | 3304-BD-XL | 3304 |
| Product family | Angular contact ball bearings | — | Double-row / Open |
| Detailed type | Double row angular contact ball bearing | Angular contact ball bearings | Angular contact ball bearings |
| Series | — | 3304 | — |
| Bore diameterd | 20 mm | 20 mm | 20 mm |
| Outside diameterD | 52 mm | 52 mm | 52 mm |
| WidthB | 22.2 mm | 22.2 mm | 22.2 mm |
| Basic dynamic load ratingC | 24.5 kN | 24.6 kN | 26 kN |
| Basic static load ratingC0 | 15.6 kN | 15.9 kN | 18.4 kN |
| Fatigue load limitPu | 0.67 kN | 1.1 kN | 0.95 kN |
| Reference speednref | 13000 r/min | 10400 r/min | — |
| Limiting speednG | 13000 r/min | 14700 r/min | 8200 r/min |
| Mass≈m | 0.221 kg | 0.211 kg | 0.23 kg |
| Precision class | — | P6 — Class 6 (ISO 492:2023) | — |
| Sealing | Without | Without — Not sealed | Open |
| Cage | Sheet metal | JH — Steel sheet metal | — |
| Bearing material | Bearing steel | — | — |
| Lubricant | None | Without — Bearing not greased | — |
| Minimum operating temperatureTmin | — | -30 °C | — |
| Maximum operating temperatureTmax | — | 120 °C | — |
| Capabilities & suitability | |||
| Radial load capacity | — | Yes | — |
| Axial load capacity in one direction | — | Yes | — |
| Axial load capacity in both directions | — | Yes | — |
| Suitable for grease lubrication | — | Yes | — |
| Suitable for oil lubrication | — | Yes | — |
| Unsealed design | — | Yes | — |
| Classification | |||
| Official Category Path | — | — | Angular contact ball bearings - Double-row - Open |
| Official Classification 1 | — | — | Angular contact ball bearings / Double-row / Open |
| Dimensions | |||
| Contact angle | 30.0 ° | — | — |
| Minimum chamfer dimensionrmin | — | 1.1 mm | — |
| Minimum chamfer dimensionrmin | — | 0.043 in | — |
| Shoulder diameter outer ringD1 | — | 43.98 mm | — |
| Shoulder diameter outer ringD1 | — | 1.731 in | — |
| Caliber diameter outer ringD2 | — | 46.14 mm | — |
| Caliber diameter outer ringD2 | — | 1.817 in | — |
| Shoulder diameter inner ringd1 | — | 33.52 mm | — |
| Shoulder diameter inner ringd1 | — | 1.32 in | — |
| Caliber diamter inner ringd2 | — | 31.94 mm | — |
| Caliber diamter inner ringd2 | — | 1.257 in | — |
| Distance between the apexes of the pressure conesa | — | 30.4 mm | — |
| Distance between the apexes of the pressure conesa | — | 1.197 in | — |
| Contact angleα | — | 30 ° | — |
| Engineering — Abutment dimensions | |||
| Abutment diameter shaftd a | min. 27 mm | — | — |
| Abutment diameter housingD a | max. 45 mm | — | — |
| Fillet radiusr a | max. 1 mm | — | — |
| Engineering — Calculation data | |||
| SKF performance class | SKF Explorer | — | — |
| Calculation factork r | 0.07 | — | — |
| Limiting valuee | 0.8 | — | — |
| Calculation factorX | 0.63 | — | — |
| Calculation factorY 0 | 0.66 | — | — |
| Calculation factorY 1 | 0.78 | — | — |
| Calculation factorY 2 | 1.2 | — | — |
| Engineering — Dimensions | |||
| Recess diameter inner ring shoulderd 2 | ≈ 29.9 mm | — | — |
| Recess diameter outer ring shoulderD 2 | ≈ 43.95 mm | — | — |
| Chamfer dimension inner ringr 1,2 | min. 1.1 mm | — | — |
| Distance pressure point(s)a | 30 mm | — | — |
| Logistics | |||
| Product net weight | 0.221 kg | — | — |
| eClass code | 23-05-08-03 | — | — |
| UNSPSC code | 31171531 | — | — |
| Main Dimensions & Performance Data | |||
| Basic dynamic load rating, radialCr | — | 24,600 N | — |
| Basic dynamic load rating, radialCr | — | 5,530.576 lbf | — |
| Basic static load rating, radialC0r | — | 15,900 N | — |
| Basic static load rating, radialC0r | — | 3,574.64 lbf | — |
| Fatigue load limit, radialCur | — | 1,100 N | — |
| Fatigue load limit, radialCur | — | 247.302 lbf | — |
| Manufacturer Identity | |||
| Schaeffler Product Code | — | 360836 | — |
| Official Class Key | — | — | 020-030-000 |
| Base Type | — | 3304 | — |
| Old Designation | — | ["3304-BD"] | — |
| Gpsd Group | — | S03 | — |
| Product Line Id | — | 14 | — |
| X Life Marking | — | XL | — |
| SAP material number | — | 0712339200000 | — |
| Base product | — | 2305080302 | — |
| Bearing X designation | — | 3304-BD-XL | — |
| Mounting Manager ID | — | 3304-BD-XL | — |
| Grease application ID | — | 3304-BD-XL | — |
| Mounting dimensions | |||
| Minimum diameter shaft shoulderda min | — | 27 mm | — |
| Minimum diameter shaft shoulderda min | — | 1.063 in | — |
| Maximum diameter of housing shoulderDa max | — | 45 mm | — |
| Maximum diameter of housing shoulderDa max | — | 1.772 in | — |
| Maximum fillet radiusra max | — | 1 mm | — |
| Maximum fillet radiusra max | — | 0.039 in | — |
| Product characteristics | |||
| Design variantB | — | Bearing without filling slot | — |
| Changed internal design | — | D | — |
| Type of SealWithout | — | Not sealed | — |
| Tolerance classP6 | — | Class 6 (ISO 492:2023) | — |
| Dimensional / heat stabilizationSN | — | Rings dimensional stabilized up to 120° | — |
| Axial internal clearanceCN | — | Group N (CN) | — |
| Product identity | |||
| Official product category | Angular contact ball bearings | — | — |
| Official taxonomy path | /products/rolling-bearings/ball-bearings/angular-contact-ball-bearings/double-row-angular-contact-ball-bearings | — | — |
| Structure group ID | BA2_001 | — | — |
| Available from SKF | Yes | — | — |
| Remanufacturable | No | — | — |
| Product Identity | |||
| Construction | — | Angular contact ball bearing 33..-BD-XL, double row, X-life, steel sheet metal cage | — |
| Short Description | — | Angular contact ball bearing | — |
| Properties | |||
| Contact type | Normal contact (two-point contact) | — | — |
| Number of rows | 2 | — | — |
| Locating feature, bearing outer ring | Without | — | — |
| Ring type | One-piece inner and outer rings | — | — |
| Arrangement of contact angle (double-row bearing) | Back-to-back (O) | — | — |
| Matched arrangement | No | — | — |
| Universal matching bearing | No | — | — |
| Axial internal clearance | CN | — | — |
| Material, bearing | Bearing steel | — | — |
| Coating | Without | — | — |
| Relubrication feature | Without | — | — |
| Indicative carbon footprint for new product | 0.82 kg CO 2 e | — | — |
| Technical Data | |||
| d | — | — | 52 mm |
| B | — | — | 22.2 mm |
| R(Min.) | — | — | 1.1 mm |
| Basic Load Ratings : Cr | — | — | 26.0 kN |
| Bore Diameter (D) | — | 20 mm | — |
| Basic Load Ratings : C0R | — | — | 18.4 kN |
| Outside Diameter (D) | — | 52 mm | — |
| Fatigue Load Limit : Cu | — | — | 0.950 kN |
| Width (B) | — | 22.2 mm | — |
| Limiting Speeds(Grease Lub.) | — | — | 8200 min-1 |
| Basic Dynamic Load Rating, Radial (Cr) | — | 24,600 N | — |
| Limiting Speeds(Oil Lub.) | — | — | 11000 min-1 |
| Basic Static Load Rating, Radial (C0R) | — | 15,900 N | — |
| Load Center Spread : A | — | — | 33.8 mm |
| Operating Temperature Min. (Tmin) | — | -30 °C | — |
| Da(Min.) | — | — | 27 mm |
| Limiting Speed (Ng) | — | 14,700 1/min | — |
| Da(Max.) | — | — | 45 mm |
| Operating Temperature Max. (Tmax) | — | 120 °C | — |
| Reference Speed (Nϑr) | — | 10,400 1/min | — |
| Ra(Max.) | — | — | 1 mm |
| Caliber Diameter Outer Ring (D2) | — | 46.14 mm | — |
| Mass(Refer.) | — | — | 0.230 kg |
| Fatigue Load Limit, Radial (Cur) | — | 1,100 N | — |
| Minimum Diameter Shaft Shoulder (Da Min) | — | 27 mm | — |
| Shoulder Diameter Inner Ring (D1) | — | 33.52 mm | — |
| Maximum Diameter Of Housing Shoulder (Da Max) | — | 45 mm | — |
| Minimum Chamfer Dimension (Rmin) | — | 1.1 mm | — |
| Caliber Diameter Inner Ring (D1) | — | 31.94 mm | — |
| Maximum Fillet Radius (Ra Max) | — | 1 mm | — |
| Shoulder Diameter Outer Ring (D1) | — | 43.98 mm | — |
| Contact Angle (Α) | — | 30 ° | — |
| Distance Between The Apexes Of The Pressure Cones (A) | — | 30.4 mm | — |
| Temperature range | |||
| Operating temperature min.Tmin | — | -30 °C | — |
| Operating temperature min.Tmin | — | -22 °F | — |
| Operating temperature max.Tmax | — | 120 °C | — |
| Operating temperature max.Tmax | — | 248 °F | — |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.