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Deep Groove Ball Bearings: The Industry Default and When to Reach for Something Else
If you pulled a bearing off general industrial equipment at random, there’s a good chance
Availability:
1 in stock
Super-precision angular contact ball bearing, 100 x 150 x 24 mm, 25° contact angle, extra light preload, P4A. SKF D design, universally matchable single bearing.
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| MFR / Brand | SKF |
|---|---|
| MPN | 7020 ACDGA/P4A |
| Model | 7020 ACD DGA P4A / 3MM9120WI CR SUL / 7020A5 7020-E 7020A |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 100 mm |
| OD | 150 mm |
| Width | 24 mm |
| Material | Bearing Steel |
|---|---|
| Series | 7000 |
| Lubricant | Oil/Grease |
| Preload | Extra light, 500 N (paired back-to-back or face-to-face) |
| Mpn Variants | 7020 ACDGA/P4A, 7020-ACD/DGAP4A, 7020ACDDGAP4A, 7020ACDGAP4A, 7020-ACD-DGA-P4A |
| Precision Class | ABEC 7 / P4A |
| Closure Type | Open |
| Dynamic Load Rating | 79,300 N |
| Static Load Rating | 80,000 N |
| Rolling Elements | Ball |
| Item Weight | 1.24 kg (2.73 lb) |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | No |
| Limiting Speed | 8,000 rpm grease; 12,000 rpm oil-air |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 25° |
| Mounting Arrangement | Universally matchable (back-to-back, face-to-face or tandem) |
| Cross Reference 1 | FAG B7020-E-T-P4S-UL – light vs extra light preload |
|---|---|
| Cross Reference 2 | NSK 7020A5TYNSULP4 – light vs extra light preload |
| Cross Reference 3 | Fafnir 3MM9120WI CR SUL – light vs extra light preload |
SKF 7020 ACDGA/P4A super-precision, high-capacity D design single row angular contact ball bearing, universally matchable for back-to-back, face-to-face or tandem sets. Bore Diameter: 100 mm. Outside Diameter: 150 mm. Width: 24 mm. Contact Angle: 25°. Item Weight: 1.24 kg (2.73 lb).
7020 — ISO 70 light series, 100 mm bore.
ACD — 25° contact angle, SKF high-capacity D internal design for heavier loads at relatively high speed.
GA — universally matchable single bearing, extra light preload when paired back-to-back or face-to-face.
P4A — SKF tolerance class: ISO P4 dimensional accuracy with P2 running accuracy.
Dynamic Load Rating: 79,300 N. Static Load Rating: 80,000 N. Attainable Speed: 8,000 rpm grease; 12,000 rpm oil-air (single bearing, before the matched-set reduction factor). Preload: Extra light, 500 N when paired back-to-back or face-to-face. Axial Stiffness: 270 N/µm (pair, back-to-back). Precision Class: ABEC 7 / P4A. Ball Diameter: 15.875 mm. Number of Balls: 22.
Shaft Abutment Diameter (da min): 107 mm. Housing Abutment Diameter (Da max): 143 mm. Fillet Radius (ra max): 1.5 mm. Chamfer (r1,2 min): 1.5 mm. Oil Nozzle Position (dn): 118.7 mm. Reference Grease Quantity: 16.2 cm³.
Unit Quantity: 1 Pc. Mounting Arrangement: universally matchable, back-to-back, face-to-face or tandem.
25° contact angle and P4-level precision, but light rather than extra light preload: FAG B7020-E-T-P4S-UL, NSK 7020A5TYNSULP4, Fafnir 3MM9120WI CR SUL.
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