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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
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1 in stock
Matched pair of super-precision bearings, 40 x 68 x 15 mm, 15° contact angle, phenolic cage, light preload. FAG B7008C.TPA.P4.DUL, 20.9 kN dynamic, 2 Pcs.
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| MFR / Brand | FAG |
|---|---|
| MPN | B7008C.TPA.P4.DUL |
| Model | B 7008 C TPA P4 DUL / 2MM9108WI CR DUL |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 40 mm |
| OD | 68 mm |
| Width | 15 mm |
| Material | Bearing Steel |
|---|---|
| Series | 7000 |
| Base Number | 7008 C |
| Industry Terms | Spindle bearing pair; super precision angular contact bearing; machine tool bearing; matched duplex set; light preload; 15 degree bearing; 40mm bore spindle bearing |
| Common Misspellings | B7008C TPA P4 DUL; B7008 CTPAP4DUL; FAG B7008CTPA P4DUL; B7008-C-TPA-P4-DUL-2; Angular Contract Bearing |
| Application Types | Machine tool main spindles; grinding spindles; milling and turning spindles; high-precision gearboxes; rotary tables |
| Bore Shaft Size | 40 mm (1.5748 in) |
| Mpn Variants | B7008C.TPA.P4.DUL; B7008-C-TPA-P4-DUL; B7008CTPAP4DUL; B7008C.T.P4S.DUL; B7008-C-T-P4S-DUL; B 7008 C TPA P4 DUL |
| Rolling Elements | Ball |
| Number Of Rows | 1 per bearing, 2 in the assembled pair |
| Bore Type | Straight |
| Snap Ring Included | Without snap ring |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 15° |
| Part Number | B7008-C-TPA-P4-DUL |
| Cross Reference 1 | FAG B7008-C-T-P4S-DUL - current designation |
|---|---|
| Cross Reference 2 | RHP 7008CTRDULP4 - 15 deg, light preload |
| Cross Reference 3 | Fafnir 2MM9108WI-CR-DUL - 15 deg, light preload |
| Cross Reference 4 | NSK 7008CTRDULP4 - 15 deg, light preload |
| Cross Reference 5 | SKF 7008 CD/P4ADGA - 15 deg, extra light preload |
| Cross Reference 6 | NTN 7008CDBGLP4 - 15 deg pair |
| Cross Reference 9 | FAG B7008-E-T-P4S-DUL - 25 deg, not 15 deg |
A matched pair of FAG B7008-C-TPA-P4-DUL super-precision angular contact spindle bearings, supplied as one factory-matched duplex set of 2 pieces. Single row each, open on both faces, solid machined rings, large steel balls and a machined phenolic cage. Non-separable.
B — FAG spindle bearing range with large-diameter balls.
C — 15° contact angle.
TPA — fabric-base laminate phenolic cage, written T in the current scheme.
P4 — super-precision tolerance class, ABEC 7.
DUL — factory-matched duplex pair at light preload.
Bore Diameter: 40 mm.
Outside Diameter: 68 mm.
Overall Width: 15 mm per bearing.
Contact Angle: 15°.
Number Of Rows: 1 per bearing.
Closure Type: Open.
Dynamic Load Rating: 20.9 kN per bearing.
Static Load Rating: 11.2 kN per bearing.
Limiting Speed: 22,000 rpm grease; 34,000 rpm minimal-quantity oil.
Precision Class: ABEC 7 / P4.
Cage Material: Phenolic.
Preload: Light (DUL).
Operating temperature, upper limit: 100 °C.
Country of Origin: Germany.
Unit Quantity: 2 Pcs.
Envelope: 40 x 68 x 15 mm per bearing. Mounted back-to-back or face-to-face the pair takes thrust in both directions at the light preload set by the matched grind; in tandem it takes thrust in one direction with doubled capacity.
15° duplex sets in the 40 x 68 x 15 mm size: SKF 7008 CD/P4ADGA (extra light preload), NSK 7008CTRDULP4, RHP 7008CTRDULP4, Fafnir 2MM9108WI-CR-DUL. FAG’s current designation for this bearing is B7008-C-T-P4S-DUL. B7008-E is the 25° version of the same envelope.
Bore Diameter: 40 mm. Outside Diameter: 68 mm. Overall Width: 15 mm per bearing.
Dynamic Load Rating: 20.9 kN per bearing. Static Load Rating: 11.2 kN per bearing. Limiting Speed: 22,000 rpm grease; 34,000 rpm minimal-quantity oil.
DUL marks a factory-matched duplex pair at light preload. Unit Quantity: 2 Pcs.
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