SKF · rolling bearings
SKF 3308 DNRCBM
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 | 40 mm |
|---|---|
| Outside diameter | 90 mm |
| Width | 36.5 mm |
| Contact angle | 40 ° |
| Basic dynamic load rating | 49.4 kN |
| Basic static load rating | 41.5 kN |
| Reference speed | 8000 r/min |
| Limiting speed | 7000 r/min |
| Contact type | Normal contact (two-point contact) |
| Number of rows | 2 |
| Locating feature, bearing outer ring | Snap ring (fitted) |
| Ring type | Two-piece inner ring and one-piece outer ring |
| Cage | Machined brass |
| Arrangement of contact angle (double-row bearing) | Back-to-back (O) |
| Matched arrangement | No |
| Universal matching bearing | No |
| Axial internal clearance | CB |
| Material, bearing | Bearing steel |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Relubrication feature | Without |
| Indicative carbon footprint for new product | 4.2 kg CO_2e |
| Product net weight | 1.13 kg |
| eClass code | 23-05-08-03 |
| UNSPSC code | 31171531 |
| Dimensions · Bore diameter · (d) | 40 mm |
| Dimensions · Outside diameter · (D) | 90 mm |
| Dimensions · Width · (B) | 36.5 mm |
| Dimensions · Shoulder diameter inner ring for two-piece inner ring · (d_1) · ≈ | 61.15 mm |
| Dimensions · Shoulder diameter outer ring · (D_1) · ≈ | 77.47 mm |
| Dimensions · Snap ring groove diameter at outer ring · (D_3) | 86.8 mm |
| Dimensions · Outside diameter snap ring · (D_4) | 96.5 mm |
| Dimensions · Distance outer ring side face - snap ring groove · (C) | 3.28 mm |
| Dimensions · Width snap ring groove outer ring · (b) | 2.7 mm |
| Dimensions · Width snap ring · (f) | 2.46 mm |
| Dimensions · Snap ring groove bottom radius · (r_0) · max. | 0.6 mm |
| Dimensions · Chamfer dimension inner ring for two-piece inner ring · (r_1,2) · min. | 1.5 mm |
| Dimensions · Distance pressure point(s) · (a) | 71 mm |
| Abutment dimensions · Abutment diameter shaft · (d_a) · min. | 49 mm |
| Abutment dimensions · Fillet radius · (r_a) · max. | 1.5 mm |
| Calculation data · Basic dynamic load rating · (C) | 49.4 kN |
| Calculation data · Basic static load rating · (C_0) | 41.5 kN |
| Calculation data · Fatigue load limit · (P_u) | 1.76 kN |
| Calculation data · Reference speed | 8000 r/min |
| Calculation data · Limiting speed | 7000 r/min |
| Calculation data · Calculation factor · (k_r) | 0.095 |
| Calculation data · Limiting value · (e) | 1.1 |
| Calculation data · Calculation factor · (X) | 0.57 |
| Calculation data · Calculation factor · (Y_0) | 0.52 |
| Calculation data · Calculation factor · (Y_1) | 0.55 |
| Calculation data · Calculation factor · (Y_2) | 0.93 |
Family specifications and selection conditions
| Product description | Double row angular contact ball bearings, with snap ring and split inner ring, correspond to a pair of single row angular contact ball bearings in a back-to-back arrangement. The snap ring, fitted in an annular groove in the outer ring, facilitates axial location of the bearings within their housings. The split inner ring enables incorporation of more balls, resulting in higher load carrying capacity. |
|---|---|
| Manufacturer features | Snap ring facilitates axial location within housing • Accommodate very high axial loads in both directions, radial loads, and tilting moments • Suitable where a stiff bearing arrangement is required • Require less axial space than equivalent pair of single row angular contact ball bearings |
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.