7011 ACD/P4ATBTB - Matched set of three super-precision, high-capacity, D design, single row angular contact ball bearings
Matched set of three super-precision, high-capacity, D design, single row angular contact ball bearings These sets of three matched super-precision angular contact ball bearings are available as universally matchable bearings or as preconfigured arrangements. Sets arranged in back-to-back and tandem, or face-to-face and tandem, are available in different preload classes and correct mounting results in preload within a predetermined range, without the need for shims or similar devices. Sets of three bearings paired in tandem need to be mounted against a single bearing, or another set of bearings in tandem, to achieve the desired preload. The bore and outside diameters of the bearings are matched to within a maximum of one-third of the permitted diameter tolerance, to provide better load distribution than single universally matchable bearings.
Bore diameter55 mmBore diameter
Outside diameter90 mmOutside diameter
Width54 mmWidth
Contact angle25 °Contact angle
Basic dynamic load rating80.6 kNBasic dynamic load rating
Basic static load rating93 kNBasic static load rating
Prezentare produs
| Cod produs | 7011 ACD/P4ATBTB |
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| Tip produs | Matched set of three super-precision, high-capacity, D design, single row angular contact ball bearings |
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| Marca | SKF |
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Dimensions
| Bore diameter | Bore diameter | 55 mm |
| Outside diameter | Outside diameter | 90 mm |
| Width | Width | 54 mm |
| Contact angle | Contact angle | 25 ° |
Performance
| Basic dynamic load rating | Basic dynamic load rating | 80.6 kN |
| Basic static load rating | Basic static load rating | 93 kN |
| Note | Note | Refer to catalogue data or contact SKF for the attainable speeds |
Properties
| Contact type | Contact type | Normal contact (two-point contact) |
| Number of rows | Number of rows | 3 |
| Ring type | Ring type | One-piece inner and outer rings |
| Design | Design | High-capacity D |
| Universal matching bearing | Universal matching bearing | No |
| Matched arrangement | Matched arrangement | <>> |
| Number of bearings in matched set | Number of bearings in matched set | 3 |
| Matched condition (axial clearance/ preload) | Matched condition (axial clearance/ preload) | Light preload |
| Tolerance class | Tolerance class | P4A |
| Material, bearing | Material, bearing | Bearing steel |
| Coating | Coating | Without |
| Sealing | Sealing | Without |
| Lubricant | Lubricant | None |
| Indicative carbon footprint for new product | Indicative carbon footprint for new product | 4.1 kg CO2e |
Logistics
| Product net weight | Product net weight | 1.11 kg |
| eClass code | eClass code | 23-05-08-04 |
| UNSPSC code | UNSPSC code | 31171531 |
Dimensions
| d | Bore diameter | 55 mm mm |
| D | Outside diameter | 90 mm mm |
| B | Width | 54 mm mm |
| d1 | Shoulder diameter of inner ring (large side face) | 65.8 mm mm |
| r1,2 | Chamfer dimension | min. 1.1 mm mm |
| r3,4 | Chamfer dimension | min. 0.6 mm mm |
Abutment dimensions
| da | Diameter of shaft abutment | min. 61 mm mm |
| Db | Diameter of housing abutment | max. 86.8 mm mm |
| ra | Radius of fillet | max. 1 mm mm |
| rb | Radius of fillet | max. 0.6 mm mm |
| dn | Position of oil nozzle | 68.1 mm mm |
Calculation data
| C | Basic dynamic load rating | 80.6 kN kN |
| C0 | Basic static load rating | 93 kN kN |
| Pu | Fatigue load limit | 4 kN kN |
| Attainable speeds | Attainable speeds | Refer to catalogue data or contact SKF for the attainable speeds |
| α | Contact angle | 25 ° ° |
| Dw | Ball diameter | 11.112 mm mm |
| i | Number of rows | 3 |
| z | Number of balls (per bearing) | 18 |
| Gref | Reference grease quantity (per bearing) | 5.1 cm³ cm³ |
| Preload class | Preload class | B |
| G | Preload | 621 N N |
| Axial stiffness | Axial stiffness | 300 N/µm N/µm |
| f | Correction factor dependent on bearing series and size | 1.1 |
| f1 | Correction factor dependent on contact angle | 0.99 |
| f2B | Correction factor, preload class B | 1 |
| fHC | Correction factor for hybrid bearings | 1 |
