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Super precision angular contact ball bearings, 85 x 130 x 22 mm, 15 degree contact angle, light preload, open, phenolic cage, P4 class. Pair.
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| MFR / Brand | SKF |
|---|---|
| MPN | 7017CP4DGA |
| Model | 7017 C P4 DGA / 2MM9117WI CR DUL |
| Bearing Type | Angular Contact Ball Bearing |
| ID | 85 mm |
| OD | 130 mm |
| Width | 22 mm |
| Material | Bearing Steel |
|---|---|
| Condition | New |
| Base Number | 7017 |
| Industry Terms | Spindle bearing; super precision bearing; machine tool bearing; precision angular contact; duplex pair |
| Common Misspellings | 7017C P4 DGA; 7017 C/P4 DAG; SKF 7017CP4 DGA |
| Overall Width | 22 mm |
| Bore Shaft Size | 85 mm |
| Mpn Variants | 7017C/P4DGA; 7017 C P4 DGA; 7017CP4DGA; 7017-C-P4-DGA; 7017C |
| Precision Class | P4 |
| Cage Type | Machined, outer-ring-land-riding |
| Dynamic Load Rating | 67.6 kN |
| Static Load Rating | 65.5 kN |
| Precision Rating | ABEC 7 / P4 |
| Series | 70 |
| Rolling Elements | Ball |
| Cage Material | Fabric-reinforced phenolic |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Internal Clearance | N/A - preloaded |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 15° |
| Preload | Light (GA) |
| Design Units | Metric |
| Bearing Material | Chrome steel |
| Part Number | 7017 C/P4 DGA |
| Cross Reference 1 | FAG B7017-C-T-P4S-DUL |
|---|---|
| Cross Reference 2 | Fafnir 2MM9117WI CR DUL |
| Cross Reference 3 | 7017 ACD/P4A (related size, 25 degree contact angle) |
SKF 7017 C/P4 DGA super-precision angular contact ball bearing. Series: 70, extra-light section. Base number: 7017. Bore: 85 mm. Outside diameter: 130 mm. Width: 22 mm. Single row, straight bore, open on both faces. Searchable variants of the designation: 7017C/P4DGA, 7017 C P4 DGA, 7017CP4DGA, 7017-C-P4-DGA, 7017C.
Contact Angle: 15°. Precision Class: P4, equivalent to ABEC 7. Preload: light. Cage: machined phenolic, outer-ring-land-riding.
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. Light preload holds running accuracy with lower heat generation than a medium or heavy setting. Basic dynamic load rating: 67.6 kN. Basic static load rating: 65.5 kN.
Two bearings. Unit Quantity: 2 Pcs. Universally matchable execution, ground to the light preload class. Internal Clearance: N/A — the bearings are 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.
Same-spec equivalents: FAG B7017-C-T-P4S-DUL, Fafnir 2MM9117WI CR DUL. Related size: 7017 ACD/P4A carries a 25° contact angle and a different thrust capacity.
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