SKF · super precision bearings
SKF 71952 ACDGA/P4A
Super-precision angular contact ball bearings — manufacturer technical reference and quotation support in Saudi Arabia.
لطلب عرض سعر في السعودية، أرسل رقم القطعة أو المقاس والكمية والمدينة. يُرجى تأكيد التوافق والتوفر والسعر مع فريقنا.
| Bore diameter | 260 mm |
|---|---|
| Outside diameter | 360 mm |
| Width | 46 mm |
| Contact angle | 25 ° |
| Basic dynamic load rating | 281 kN |
| Basic static load rating | 400 kN |
| Note | Refer to catalogue data or contact SKF for the attainable speeds |
| 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 | Yes, back-to-back (), face-to-face (>>) |
| Matched arrangement | No |
| Matched condition (axial clearance/ preload) | Measuring load, class A |
| Tolerance class | P4A |
| Material, bearing | Bearing steel |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Indicative carbon footprint for new product | 45 kg CO_2e |
| Product net weight | 12.2 kg |
| eClass code | 23-05-08-04 |
| UNSPSC code | 31171531 |
| Universal matching bearing(s) | Yes, back-to-back (), face-to-face (>>) |
| Dimensions · Bore diameter · (d) | 260 mm |
| Dimensions · Outside diameter · (D) | 360 mm |
| Dimensions · Width · (B) | 46 mm |
| Dimensions · Shoulder diameter of inner ring (large side face) · (d_1) | 291.8 mm |
| Dimensions · Shoulder diameter of inner ring (small side face) · (d_2) | 291.8 mm |
| Dimensions · Shoulder diameter of outer ring (large side face) · (D_1) | 328.2 mm |
| Dimensions · Chamfer dimension · (r_1,2) · min. | 2.1 mm |
| Dimensions · Chamfer dimension · (r_3,4) · min. | 1.1 mm |
| Dimensions · Distance from side face to pressure point · (a) | 95.5 mm |
| Abutment dimensions · Diameter of shaft abutment · (d_a) · min. | 271 mm |
| Abutment dimensions · Diameter of shaft abutment · (d_b) · min. | 271 mm |
| Abutment dimensions · Diameter of housing abutment · (D_a) · max. | 349 mm |
| Abutment dimensions · Diameter of housing abutment · (D_b) · max. | 354 mm |
| Abutment dimensions · Radius of fillet · (r_a) · max. | 2 mm |
| Abutment dimensions · Radius of fillet · (r_b) · max. | 1 mm |
| Abutment dimensions · Position of oil nozzle · (d_n) | 299.7 mm |
| Calculation data · Basic dynamic load rating · (C) | 281 kN |
| Calculation data · Basic static load rating · (C_0) | 400 kN |
| Calculation data · Fatigue load limit · (P_u) | 9.65 kN |
| Calculation data · Attainable speeds | Refer to catalogue data or contact SKF for the attainable speeds |
| Calculation data · Contact angle · (α) | 25 ° |
| Calculation data · Ball diameter · (D_w) | 30.162 mm |
| Calculation data · Number of rows · (i) | 1 |
| Calculation data · Number of balls (per bearing) · (z) | 29 |
| Calculation data · Reference grease quantity (per bearing) · (G_ref) | 150 cm³ |
| Calculation data · Preload and stiffness (back-to-back, face-to-face) · Preload class | A |
| Calculation data · Preload and stiffness (back-to-back, face-to-face) · Preload when unmounted · (G) | 1650 N |
| Calculation data · Preload and stiffness (back-to-back, face-to-face) · Axial stiffness | 616 N/µm |
| Calculation data · Correction factors for preload calculation · Correction factor dependent on bearing series and size · (f) | 1.2 |
| Calculation data · Correction factors for preload calculation · Correction factor dependent on contact angle · (f_1) | 0.98 |
| Calculation data · Correction factors for preload calculation · Correction factor, preload class A · (f_2A) | 1 |
| Calculation data · Correction factors for preload calculation · Correction factor for hybrid bearings · (f_HC) | 1 |
| Calculation data · Factors for equivalent bearing load calculation · Limiting value · (e) | 0.68 |
| Calculation data · Factors for equivalent bearing load calculation · Axial load factor (single, tandem) · (Y_1) | 0 |
| Calculation data · Factors for equivalent bearing load calculation · Axial load factor (single, tandem) · (Y_2) | 0.87 |
| Calculation data · Factors for equivalent bearing load calculation · Axial load factor (single, tandem) · (Y_0) | 0.38 |
| Calculation data · Factors for equivalent bearing load calculation · Radial load factor (single, tandem) · (X_1) | 1 |
| Calculation data · Factors for equivalent bearing load calculation · Radial load factor (single, tandem) · (X_2) | 0.41 |
| Calculation data · Factors for equivalent bearing load calculation · Radial load factor (single, tandem) · (X_0) | 0.5 |
| Calculation data · Factors for equivalent bearing load calculation · Axial load factor (back-to-back, face-to-face) · (Y_1) | 0.92 |
| Calculation data · Factors for equivalent bearing load calculation · Axial load factor (back-to-back, face-to-face) · (Y_2) | 1.4 |
| Calculation data · Factors for equivalent bearing load calculation · Axial load factor (back-to-back, face-to-face) · (Y_0) | 0.76 |
| Calculation data · Factors for equivalent bearing load calculation · Radial load factor (back-to-back, face-to-face) · (X_1) | 1 |
| Calculation data · Factors for equivalent bearing load calculation · Radial load factor (back-to-back, face-to-face) · (X_2) | 0.67 |
| Calculation data · Factors for equivalent bearing load calculation · Radial load factor (back-to-back, face-to-face) · (X_0) | 1 |
Family specifications and selection conditions
| Product description | These super-precision, high-capacity, single row angular contact ball bearings accommodate radial and axial loads acting simultaneously, where the axial load acts in one direction only. They are designed to accommodate heavy loads at relatively high speeds under low to moderate operating temperatures. Being universally matchable, they can be used together in arrangements to provide effective load sharing, within a predetermined preload range, without the use of shims or similar devices. |
|---|---|
| Manufacturer features | Very high running accuracy • Very high load carrying capacity • Relatively high speed and stiffness • Universally matchable |
Manufacturer references
Follow the complete manufacturer documentation for application restrictions, materials, tolerances and installation requirements. Limits may not apply simultaneously. We do not publish inferred stock, pricing or ratings.