SKF · rolling bearings
SKF 7221 BEP
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 | 105 mm |
|---|---|
| Outside diameter | 190 mm |
| Width | 36 mm |
| Contact angle | 40 ° |
| Basic dynamic load rating | 148 kN |
| Basic static load rating | 137 kN |
| Reference speed | 4300 r/min |
| Limiting speed | 3800 r/min |
| Contact type | Normal contact (two-point contact) |
| Number of rows | 1 |
| Locating feature, bearing outer ring | Without |
| Ring type | One-piece inner and outer rings |
| Cage | Non-metallic |
| Matched arrangement | No |
| Universal matching bearing | No |
| Axial internal clearance | Not applicable |
| Tolerance class | Normal |
| Material, bearing | Bearing steel |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Relubrication feature | Without |
| Indicative carbon footprint for new product | 14.1 kg CO_2e |
| Product net weight | 3.82 kg |
| eClass code | 23-05-08-03 |
| UNSPSC code | 31171531 |
| Dimensions · Bore diameter · (d) | 105 mm |
| Dimensions · Deviation limits of mid-range bore diameter · (t_Δdmp) | -0.02 to 0 mm |
| Dimensions · Outside diameter · (D) | 190 mm |
| Dimensions · Deviation limits of mid-range outside diameter · (t_ΔDmp) | -0.03 to 0 mm |
| Dimensions · Width · (B) | 36 mm |
| Dimensions · Deviation limits of ring width · (t_ΔBs) | -0.2 to 0 mm |
| Dimensions · Shoulder diameter of inner ring (large side face) · (d_1) · ≈ | 137.95 mm |
| Dimensions · Shoulder diameter of inner ring (small side face) · (d_2) · ≈ | 121.17 mm |
| Dimensions · Shoulder diameter of outer ring (large side face) · (D_1) · ≈ | 159.1 mm |
| Dimensions · Distance side face to pressure point · (a) | 80 mm |
| Dimensions · Chamfer dimension · (r_1,2) · min. | 2.1 mm |
| Dimensions · Chamfer dimension · (r_3,4) · min. | 1.1 mm |
| Dimensions · ISO tolerance class for dimensions | Normal |
| Abutment dimensions · Diameter of shaft abutment · (d_a) · min. | 117 mm |
| Abutment dimensions · Abutment diameter housing · (D_a) · max. | 178 mm |
| Abutment dimensions · Diameter of housing abutment · (D_b) · max. | 183 mm |
| Abutment dimensions · Radius of fillet · (r_a) · max. | 2 mm |
| Abutment dimensions · Radius of fillet · (r_b) · max. | 1 mm |
| Calculation data · Basic dynamic load rating · (C) | 148 kN |
| Calculation data · Basic static load rating · (C_0) | 137 kN |
| Calculation data · Fatigue load limit · (P_u) | 4.8 kN |
| Calculation data · Reference speed | 4300 r/min |
| Calculation data · Limiting speed | 3800 r/min |
| Calculation data · Minimum axial load factor · (A) | 0.3 |
| Calculation data · Minimum radial load factor · (k_r) | 0.095 |
| Calculation data · Limiting value · (e) | 1.1 |
| Calculation data · Single bearing or bearing pair arranged in tandem · Calculation factor (single, tandem) · (X) | 0.35 |
| Calculation data · Single bearing or bearing pair arranged in tandem · Calculation factor (single, tandem) · (Y_0) | 0.26 |
| Calculation data · Single bearing or bearing pair arranged in tandem · Calculation factor (single, tandem) · (Y_2) | 0.57 |
| Calculation data · Bearing pair arranged back-to-back or face-to-face · Calculation factor (back-to-back, face-to-face) · (X) | 0.57 |
| Calculation data · Bearing pair arranged back-to-back or face-to-face · Calculation factor (back-to-back, face-to-face) · (Y_0) | 0.52 |
| Calculation data · Bearing pair arranged back-to-back or face-to-face · Calculation factor (back-to-back, face-to-face) · (Y_1) | 0.55 |
| Calculation data · Bearing pair arranged back-to-back or face-to-face · Calculation factor (back-to-back, face-to-face) · (Y_2) | 0.93 |
| Tolerances of run-out · Range of section height at inner ring of assembled bearing · (t_Kia) | 25 µm |
| Tolerances of run-out · Range of section height at outer ring of assembled bearing · (t_Kea) | 50 µm |
| Tolerances of run-out · ISO tolerance class for geometrical tolerances | Normal |
Family specifications and selection conditions
| Product description | These single row angular contact ball bearings can accommodate radial and axial loads acting simultaneously, where the axial load acts in one direction only. They can operate at high speeds and, depending on the variant, even very high speeds. They are more suitable than deep groove ball bearings for supporting large axial forces acting in one direction. |
|---|---|
| Manufacturer features | High-speed capability • Accommodate relatively high radial loads and large unilateral axial loads |
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.