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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, 15 degree contact angle, extra light preload, open, machined phenolic cage, P4 class.
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$386.27
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| MFR / Brand | SKF |
|---|---|
| MPN | 7020 CGA/P4 |
| Model | 7020-C-GA-P4 |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 100 mm |
| OD | 150 mm |
| Width | 24 mm |
| Material | Bearing Steel |
|---|---|
| Series | 70 |
| Lubricant | Oil/Grease |
| Preload | Extra light |
| Base Number | 7020 |
| Industry Terms | spindle bearing; super precision bearing; machine tool bearing; precision angular contact |
| Common Misspellings | 7020CGA P4; 7020 CAG/P4; SKF 7020CGAP4 |
| Overall Width | 24 mm |
| Bore Shaft Size | 100 mm |
| Mpn Variants | 7020CGA/P4; 7020 CGA P4; 7020CGAP4; 7020-C-GA-P4; 7020 C GA P4; 7020C |
| Closure Type | Open |
| Rolling Elements | Ball |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 15° |
| Part Number | 7020 CGA/P4 |
| Cross Reference 1 | FAG B7020-C-T-P4S-UL - light preload |
|---|---|
| Cross Reference 2 | Fafnir 2MM9120WI CR SUL - light preload |
| Cross Reference 3 | NSK 7020CTYNSULP4 - light preload, polyamide cage |
| Cross Reference 4 | SKF 7020 ACD/P4A - 25 deg vs 15 deg |
SKF 7020 CGA/P4 super-precision angular contact ball bearing. Series: 70, extra-light section. Base number: 7020. Bore: 100 mm. Outside diameter: 150 mm. Width: 24 mm. Single row, straight bore, open on both faces. Searchable variants of the designation: 7020CGA/P4, 7020 CGA P4, 7020CGAP4, 7020-C-GA-P4, 7020C.
Contact Angle: 15°. Precision Class: P4, equivalent to ABEC 7. Preload: extra light. Cage: machined, fabric-reinforced phenolic, rated to 120 °C.
A 15° contact angle favours speed and radial rigidity over thrust capacity, which is why this execution is standard in machine tool spindles and precision grinders. Extra light preload holds running accuracy with low heat generation. Basic dynamic load rating: 83.2 kN. Basic static load rating: 85.0 kN. Limiting speed: 10000 rpm.
One bearing, single universally ground. Unit Quantity: 1 Pc. Internal Clearance: N/A — the bearing is preload-set, not clearance-set.
Mounting is by interference on the inner ring seat with the outer ring located axially in the housing. Oil or grease lubrication both suit the phenolic cage. Operating range: -30 °C to 120 °C. Item weight 2.78 lbs.
FAG B7020-C-T-P4S-UL and Fafnir 2MM9120WI CR SUL have a phenolic cage at light preload, against extra light preload on this SKF part. NSK 7020CTYNSULP4 has a polyamide cage and light preload. SKF 7020 ACD/P4A is the same size with a 25° contact angle and a different thrust capacity.
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