Cross-brand designation analysis
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You entered 71821-ACD-P4DBA. This table explores the base group 71821; it does not preserve or approve every requested suffix. Search your complete marking first →
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“71821” across 2 loaded brands
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Technical comparison
Choose exact variants instead →Brand differences at a glance
| Parameter | SKF71821 ACD/P4105 × 130 × 13 mm | FAG71821-B-XL-TVP105 × 130 × 13 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | SKF | FAG |
| Designation | 71821 ACD/P4 | 71821-B-XL-TVP |
| Product family | Super-precision angular contact ball bearings | — |
| Detailed type | Super-precision, high-capacity, single row angular contact ball bearing | Angular contact ball bearings |
| Series | — | 71821 |
| Bore diameterd | 105 mm | 105 mm |
| Outside diameterD | 130 mm | 130 mm |
| WidthB | 13 mm | 13 mm |
| Basic dynamic load ratingC | 21.6 kN | 24.7 kN |
| Basic static load ratingC0 | 28.5 kN | 30 kN |
| Fatigue load limitPu | 1.1 kN | 1.93 kN |
| Reference speednref | — | 3300 r/min |
| Limiting speednG | — | 6600 r/min |
| Mass≈m | 0.32 kg | 0.316 kg |
| Precision class | — | PN — Normal (ISO 492:2023) |
| Sealing | Without | Without — Not sealed |
| Cage | — | TVP — Solid cage made of glass-fiber reinforced polyamid PA66 |
| 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 |
| Suitable for grease lubrication | — | Yes |
| Suitable for oil lubrication | — | Yes |
| Unsealed design | — | Yes |
| Dimensions | ||
| Contact angle | 25.0 ° | — |
| Minimum chamfer dimensionrmin | — | 1 mm |
| Minimum chamfer dimensionrmin | — | 0.039 in |
| Minimum chamfer dimensionr1 min | — | 0.6 mm |
| Minimum chamfer dimensionr1 min | — | 0.024 in |
| Shoulder diameter on outer ring wide side faceD1 | — | 120.78 mm |
| Shoulder diameter on outer ring wide side faceD1 | — | 4.755 in |
| Shoulder diameter on inner ring wide side faced1 | — | 114.3 mm |
| Shoulder diameter on inner ring wide side faced1 | — | 4.5 in |
| Distance between the apexes of the pressure conesa | — | 55.8 mm |
| Distance between the apexes of the pressure conesa | — | 2.197 in |
| Contact angleα | 25 ° | 40 ° |
| Engineering — Abutment dimensions | ||
| Diameter of shaft abutmentd a | min. 109.6 mm | — |
| Diameter of shaft abutmentd b | min. 109.6 mm | — |
| Diameter of housing abutmentD a | max. 125.4 mm | — |
| Diameter of housing abutmentD b | max. 128 mm | — |
| Radius of filletr a | max. 1 mm | — |
| Radius of filletr b | max. 0.3 mm | — |
| Position of oil nozzled n | 114.6 mm | — |
| Engineering — Calculation data | ||
| Attainable speed for grease lubrication | 8000.0 r/min | — |
| Attainable speed for oil-air lubrication | 12000.0 r/min | — |
| Ball diameterD w | 7.144 mm | — |
| Number of rowsi | 1 | — |
| Number of balls (per bearing)z | 35 | — |
| Reference grease quantity (per bearing)G ref | 4 cm³ | — |
| Engineering — Calculation data — Correction factors for preload calculation | ||
| Correction factor dependent on bearing series and sizef | 1.4 | — |
| Correction factor dependent on contact anglef 1 | 0.97 | — |
| Correction factor, preload class Af 2A | 1 | — |
| Correction factor, preload class Bf 2B | 1.1 | — |
| Correction factor, preload class Cf 2C | 1.2 | — |
| Correction factor for hybrid bearingsf HC | 1 | — |
| Engineering — Calculation data — Factors for equivalent bearing load calculation | ||
| Limiting valuee | 0.68 | — |
| Axial load factor (single, tandem)Y 2 | 0.87 | — |
| Axial load factor (single, tandem)Y 0 | 0.38 | — |
| Radial load factor (single, tandem)X 2 | 0.41 | — |
| Axial load factor (back-to-back, face-to-face)Y 1 | 0.92 | — |
| Axial load factor (back-to-back, face-to-face)Y 2 | 1.4 | — |
| Axial load factor (back-to-back, face-to-face)Y 0 | 0.76 | — |
| Radial load factor (back-to-back, face-to-face)X 2 | 0.67 | — |
| Engineering — Calculation data — Preload and stiffness (back-to-back, face-to-face) | ||
| Preload, class AG A | 200 N | — |
| Axial stiffnes for preload A (sets of two brgs back to back or face to face) | 220 N/µm | — |
| Preload, class BG B | 600 N | — |
| Axial stiffness for preload B (sets of two brgs back-to-back or face-to-face) | 353 N/µm | — |
| Preload, class CG C | 1200 N | — |
| Axial stiffness for preload C (sets of two brgs back-to-back or face-to-face) | 488 N/µm | — |
| Engineering — Dimensions | ||
| Shoulder diameter of inner ring (large side face)d 1 | 113.2 mm | — |
| Shoulder diameter of inner ring (small side face)d 2 | 113.2 mm | — |
| Shoulder diameter of outer ring (large side face)D 1 | 122 mm | — |
| Chamfer dimensionr 1,2 | min. 1 mm | — |
| Chamfer dimensionr 3,4 | min. 0.3 mm | — |
| Distance from side face to pressure pointa | 34 mm | — |
| Engineering — Engineering specifications | ||
| Universal matching bearing(s) | No | — |
| Logistics | ||
| Product net weight | 0.32 kg | — |
| eClass code | 23-05-08-04 | — |
| UNSPSC code | 31171531 | — |
| Main Dimensions & Performance Data | ||
| Basic dynamic load rating, radialCr | — | 24,700 N |
| Basic dynamic load rating, radialCr | — | 5,553.058 lbf |
| Basic static load rating, radialC0r | — | 30,000 N |
| Basic static load rating, radialC0r | — | 6,744.604 lbf |
| Fatigue load limit, radialCur | — | 1,930 N |
| Fatigue load limit, radialCur | — | 433.903 lbf |
| Manufacturer Identity | ||
| Schaeffler Product Code | — | 851100 |
| Base Type | — | 71821 |
| Gpsd Group | — | S03 |
| Product Line Id | — | 14 |
| X Life Marking | — | XL |
| SAP material number | — | 0892040690000 |
| Base product | — | 2305080301 |
| Bearing X designation | — | 71821-B-XL-TVP |
| Mounting Manager ID | — | 71821-B-XL-TVP |
| Grease application ID | — | 71821-B-XL-TVP |
| Mounting dimensions | ||
| Minimum diameter of shaft shoulderda min | — | 109.6 mm |
| Minimum diameter of shaft shoulderda min | — | 4.315 in |
| Maximum diameter of housing shoulderDa max | — | 125.4 mm |
| Maximum diameter of housing shoulderDa max | — | 4.937 in |
| Maximum diameter of housing shoulderDb max | — | 126.8 mm |
| Maximum diameter of housing shoulderDb max | — | 4.992 in |
| Maximum fillet radius of shaftra max | — | 1 mm |
| Maximum fillet radius of shaftra max | — | 0.039 in |
| Maximum fillet radius of housingra1 max | — | 0.6 mm |
| Maximum fillet radius of housingra1 max | — | 0.024 in |
| Product characteristics | ||
| Design variant | — | B |
| Type of SealWithout | — | Not sealed |
| Tolerance classPN | — | Normal (ISO 492:2023) |
| Dimensional / heat stabilizationS0 | — | Rings dimensional stabilized up to 150° |
| Product identity | ||
| Official product category | Super-precision angular contact ball bearings | — |
| Official taxonomy path | /products/super-precision-bearings/angular-contact-ball-bearings | — |
| Structure group ID | BA1_010 | — |
| Available from SKF | Yes | — |
| Remanufacturable | No | — |
| Product Identity | ||
| Construction | — | Angular contact ball bearing 718..-B-XL-TVP, single row, X-life, plastic cage |
| Short Description | — | Angular contact ball bearing |
| Properties | ||
| Contact type | Normal contact (two-point contact) | — |
| Number of rows | 1 | — |
| Ring type | One-piece inner and outer rings | — |
| Design | High-capacity D | — |
| Universal matching bearing | No | — |
| Matched arrangement | No | — |
| Matched condition (axial clearance/ preload) | Not applicable | — |
| Tolerance class | P4 | — |
| Material, bearing | Bearing steel | — |
| Coating | Without | — |
| Indicative carbon footprint for new product | 1.2 kg CO 2 e | — |
| Technical Data | ||
| Bore Diameter (D) | — | 105 mm |
| Outside Diameter (D) | — | 130 mm |
| Width (B) | — | 13 mm |
| Basic Dynamic Load Rating, Radial (Cr) | — | 24,700 N |
| Basic Static Load Rating, Radial (C0R) | — | 30,000 N |
| Operating Temperature Min. (Tmin) | — | -30 °C |
| Limiting Speed (Ng) | — | 6,600 1/min |
| Operating Temperature Max. (Tmax) | — | 120 °C |
| Reference Speed (Nϑr) | — | 3,300 1/min |
| Maximum Diameter Of Housing Shoulder (Db Max) | — | 126.8 mm |
| Fatigue Load Limit, Radial (Cur) | — | 1,930 N |
| Minimum Diameter Shaft Shoulder (Da Min) | — | 109.6 mm |
| Shoulder Diameter Inner Ring (D1) | — | 114.3 mm |
| Maximum Diameter Of Housing Shoulder (Da Max) | — | 125.4 mm |
| Minimum Chamfer Dimension (Rmin) | — | 1 mm |
| Maximum Fillet Radius (Ra Max) | — | 1 mm |
| Maximum Recess Radius (Ra1 Max) | — | 0.6 mm |
| Shoulder Diameter Outer Ring (D1) | — | 120.78 mm |
| Minimum Chamfer Dimension (R1 Min) | — | 0.6 mm |
| Contact Angle (Α) | — | 40 ° |
| Distance Between The Apexes Of The Pressure Cones (A) | — | 55.8 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 |
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