SKF · rolling bearings
SKF 61903-2Z
Deep groove 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 | 17 mm |
|---|---|
| Outside diameter | 30 mm |
| Width | 7 mm |
| Basic dynamic load rating | 4.62 kN |
| Basic static load rating | 2.55 kN |
| Reference speed | 50000 r/min |
| Limiting speed | 26000 r/min |
| Filling slots | Without |
| Number of rows | 1 |
| Locating feature, bearing outer ring | Without |
| Bore type | Cylindrical |
| Cage | Sheet metal |
| Matched arrangement | No |
| Radial internal clearance | CN |
| Material, bearing | Bearing steel |
| Coating | Without |
| Sealing | Shield on both sides |
| Sealing type | Non-contact |
| Lubricant | Grease |
| Relubrication feature | Without |
| Indicative carbon footprint for new product | 0.06 kg CO_2e |
| Product net weight | 0.0168 kg |
| eClass code | 23-05-08-01 |
| UNSPSC code | 31171504 |
| Dimensions · Bore diameter · (d) | 17 mm |
| Dimensions · Deviation limits of mid-range bore diameter · (t_Δdmp) | -0.007 to 0 mm |
| Dimensions · Outside diameter · (D) | 30 mm |
| Dimensions · Deviation limits of mid-range outside diameter · (t_ΔDmp) | -0.008 to 0 mm |
| Dimensions · Width · (B) | 7 mm |
| Dimensions · Deviation limits of ring width · (t_ΔBs) | -0.12 to 0 mm |
| Dimensions · Shoulder diameter · (d_1) · ≈ | 21 mm |
| Dimensions · Recess diameter · (D_2) · ≈ | 27.7 mm |
| Dimensions · Chamfer dimension · (r_1,2) · min. | 0.3 mm |
| Dimensions · ISO tolerance class for dimensions | P6 |
| Abutment dimensions · Diameter of shaft abutment · (d_a) · min. | 19 mm |
| Abutment dimensions · Diameter of shaft abutment · (d_a) · max. | 20.3 mm |
| Abutment dimensions · Diameter of housing abutment · (D_a) · max. | 28 mm |
| Abutment dimensions · Radius of shaft or housing fillet · (r_a) · max. | 0.3 mm |
| Calculation data · Basic dynamic load rating · (C) | 4.62 kN |
| Calculation data · Basic static load rating · (C_0) | 2.55 kN |
| Calculation data · Fatigue load limit · (P_u) | 0.108 kN |
| Calculation data · Reference speed | 50000 r/min |
| Calculation data · Limiting speed | 26000 r/min |
| Calculation data · Minimum load factor · (k_r) | 0.02 |
| Calculation data · Calculation factor · (f_0) | 14.7 |
| Tolerances of run-out · Range of section height at inner ring of assembled bearing · (t_Kia) | 7 µm |
| Tolerances of run-out · Range of section height at outer ring of assembled bearing · (t_Kea) | 9 µm |
| Tolerances of run-out · ISO tolerance class for geometrical tolerances | P6 |
Family specifications and selection conditions
| Product description | Single row deep groove ball bearings with seals or shields are particularly versatile, have low friction and are optimized for low noise and low vibration, which enables high rotational speeds. They accommodate radial and axial loads in both directions, are easy to mount, and require less maintenance than many other bearing types. The integral sealing can significantly prolong bearing service life because it keeps lubricant in the bearings and contaminants out. Also available on request with special sized bore and/or outside diameters, suitable for reworked shafts and housings. |
|---|---|
| Manufacturer features | Integral sealing prolongs bearing service life • Simple, versatile and robust design • Low friction and high-speed capability • Accommodate radial and axial loads in both directions • Require little maintenance |
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.