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| Parameter | SKF71812 CD/P460 × 78 × 10 mm | INA71812-TN60 × 78 × 10 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | SKF | INA |
| Designation | 71812 CD/P4 | 71812-TN |
| 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 | — | 71812 |
| Bore diameterd | 60 mm | 60 mm |
| Outside diameterD | 78 mm | 78 mm |
| WidthB | 10 mm | 10 mm |
| Basic dynamic load ratingC | 13.5 kN | 12.3 kN |
| Basic static load ratingC0 | 14.3 kN | 12.8 kN |
| Fatigue load limitPu | 0.6 kN | 0.87 kN |
| Reference speednref | — | 5400 r/min |
| Limiting speednG | — | 10500 r/min |
| Mass≈m | 0.1 kg | 0.107 kg |
| Sealing | Without | — |
| Bearing material | Bearing steel | — |
| Lubricant | None | — |
| Minimum operating temperatureTmin | — | -30 °C |
| Maximum operating temperatureTmax | — | 120 °C |
| Dimensions | ||
| Contact angle | 15.0 ° | — |
| Engineering — Abutment dimensions | ||
| Diameter of shaft abutmentd a | min. 62 mm | — |
| Diameter of shaft abutmentd b | min. 62 mm | — |
| Diameter of housing abutmentD a | max. 76 mm | — |
| Diameter of housing abutmentD b | max. 77.2 mm | — |
| Radius of filletr a | max. 0.3 mm | — |
| Radius of filletr b | max. 0.15 mm | — |
| Position of oil nozzled n | 66.4 mm | — |
| Engineering — Calculation data | ||
| Attainable speed for grease lubrication | 16000.0 r/min | — |
| Attainable speed for oil-air lubrication | 24000.0 r/min | — |
| Contact angleα | 15 ° | — |
| Ball diameterD w | 5.556 mm | — |
| Number of rowsi | 1 | — |
| Number of balls (per bearing)z | 28 | — |
| Reference grease quantity (per bearing)G ref | 1.2 cm³ | — |
| Engineering — Calculation data — Correction factors for preload calculation | ||
| Correction factor dependent on bearing series and sizef | 1.3 | — |
| Correction factor dependent on contact anglef 1 | 1 | — |
| 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 | ||
| Calculation factor for equivalent loadsf 0 | 17 | — |
| Additional factors for equivalent loads | Refer to Notes 1 and 2 below | — |
| Engineering — Calculation data — Preload and stiffness (back-to-back, face-to-face) | ||
| Preload, class AG A | 70 N | — |
| Axial stiffnes for preload A (sets of two brgs back to back or face to face) | 59 N/µm | — |
| Preload, class BG B | 210 N | — |
| Axial stiffness for preload B (sets of two brgs back-to-back or face-to-face) | 103 N/µm | — |
| Preload, class CG C | 420 N | — |
| Axial stiffness for preload C (sets of two brgs back-to-back or face-to-face) | 152 N/µm | — |
| Engineering — Dimensions | ||
| Shoulder diameter of inner ring (large side face)d 1 | 65.7 mm | — |
| Shoulder diameter of inner ring (small side face)d 2 | 65.7 mm | — |
| Shoulder diameter of outer ring (large side face)D 1 | 72.5 mm | — |
| Chamfer dimensionr 1,2 | min. 0.3 mm | — |
| Chamfer dimensionr 3,4 | min. 0.15 mm | — |
| Distance from side face to pressure pointa | 14.3 mm | — |
| Engineering — Engineering specifications | ||
| Universal matching bearing(s) | No | — |
| Logistics | ||
| Product net weight | 0.1 kg | — |
| eClass code | 23-05-08-04 | — |
| UNSPSC code | 31171531 | — |
| Manufacturer Identity | ||
| Schaeffler Product Code | — | 359204 |
| Base Type | — | 71812 |
| Gpsd Group | — | N06 |
| Product Line Id | — | 14 |
| 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-TVP, single row, 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 | 0.37 kg CO 2 e | — |
| Technical Data | ||
| Bore Diameter (D) | — | 60 mm |
| Outside Diameter (D) | — | 78 mm |
| Width (B) | — | 10 mm |
| Basic Dynamic Load Rating, Radial (Cr) | — | 12,300 N |
| Basic Static Load Rating, Radial (C0R) | — | 12,800 N |
| Operating Temperature Min. (Tmin) | — | -30 °C |
| Limiting Speed (Ng) | — | 10,500 1/min |
| Operating Temperature Max. (Tmax) | — | 120 °C |
| Reference Speed (Nϑr) | — | 5,400 1/min |
| Maximum Diameter Of Housing Shoulder (Db Max) | — | 76.6 mm |
| Fatigue Load Limit, Radial (Cur) | — | 870 N |
| Minimum Diameter Shaft Shoulder (Da Min) | — | 62 mm |
| Shoulder Diameter Inner Ring (D1) | — | 67.2 mm |
| Maximum Diameter Of Housing Shoulder (Da Max) | — | 76 mm |
| Minimum Chamfer Dimension (Rmin) | — | 0.3 mm |
| Maximum Fillet Radius (Ra Max) | — | 0.3 mm |
| Maximum Recess Radius (Ra1 Max) | — | 0.2 mm |
| Shoulder Diameter Outer Ring (D1) | — | 70.8 mm |
| Minimum Chamfer Dimension (R1 Min) | — | 0.2 mm |
| Contact Angle (Α) | — | 40 ° |
| Distance Between The Apexes Of The Pressure Cones (A) | — | 33.9 mm |
Independent reference comparison based on the manufacturer data currently loaded. Always verify current limits, tolerances and suffix definitions with the official source before engineering selection.