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Super precision angular contact ball bearing, 90 x 140 x 24 mm, 15 degree contact angle, high-speed E design, light preload, open, P4A class.
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| MFR / Brand | SKF |
|---|---|
| MPN | 7018CEP4ATGA |
| Model | 7018 CE P4A TGA / 2MM9118WI CR DUL |
| Bearing Type | Angular Contact Ball Bearing |
| ID | 90 mm |
| OD | 140 mm |
| Width | 24 mm |
| Material | Bearing Steel |
|---|---|
| Condition | New |
| Base Number | 7018 |
| Industry Terms | Spindle bearing; super precision bearing; machine tool bearing; high speed angular contact |
| Common Misspellings | 7018CE P4A; 7018 EC/P4A; SKF 7018CEP4A DGA |
| Overall Width | 24 mm |
| Bore Shaft Size | 90 mm |
| Mpn Variants | 7018CE/P4ADGA; 7018 CE P4A DGA; 7018CEP4ADGA; 7018-CE-P4A-TGA; 7018CEP4ATGA; 7018C |
| Precision Class | P4A |
| Cage Type | Moulded |
| Dynamic Load Rating | 58.5 kN |
| Static Load Rating | 64.0 kN |
| Precision Rating | ABEC 7 / P4A |
| Series | 70 |
| Rolling Elements | Ball |
| Item Weight | 1.2 kg (2.65 lbs) |
| Cage Material | Polymer |
| Limiting Speed | 13300 rpm grease / 21000 rpm oil |
| 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 | 7018 CE/P4A DGA |
| Cross Reference 1 | FAG B7018-C-T-P4S-DUL |
|---|---|
| Cross Reference 2 | Fafnir 2MM9118WI CR DUL |
| Cross Reference 3 | 7018 CD/P4A (related size, high-capacity phenolic-cage design) |
| Cross Reference 4 | 7018 ACD/P4A (related size, 25 degree contact angle) |
SKF 7018 CE/P4A DGA super-precision angular contact ball bearing. Series: 70, extra-light section. Base number: 7018. Bore: 90 mm. Outside diameter: 140 mm. Width: 24 mm. Single row, straight bore, open on both faces. Searchable variants of the designation: 7018CE/P4ADGA, 7018 CE P4A DGA, 7018CEP4ADGA, 7018-CE-P4A-TGA, 7018CEP4ATGA, 7018C.
Contact Angle: 15°. Design: CE high-speed E execution, which uses a moulded polymer cage in place of the phenolic cage of the CD design. Precision Class: P4A, equivalent to ABEC 7. Preload: light.
A 15° contact angle favours speed and radial rigidity over thrust capacity. The E high-speed design raises the speed ceiling: limiting speed 13300 rpm on grease and 21000 rpm on oil. Light preload holds running accuracy with less heat generation than a medium or heavy setting. Mass: 1.2 kg.
Universally matchable execution, ground to the light preload class. 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. Grease or oil lubrication both suit the polymer cage.
Same-spec equivalent: FAG B7018-C-T-P4S-DUL. Related sizes on the same envelope: 7018 CD/P4A carries the high-capacity phenolic-cage design, and 7018 ACD/P4A carries a 25° contact angle.
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