Cross-brand designation analysis
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Explore products that share a base designation across loaded brands, with dimensional agreement and data gaps shown clearly.
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One base designation across loaded brands
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Dimensions verified
“71821” across 2 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 | 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 |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.