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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:
2 in stock
Super-precision angular contact ball bearing, 40 mm bore x 80 mm OD x 18 mm width, 15° contact angle, P4 class, light preload universal grinding. 1 Pc.
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| MFR / Brand | FAG |
|---|---|
| MPN | B7208-C-TPA-P4-UL |
| Model | 7208-TG-P4 / B7208C TPA P4 UL / 2MM208 |
| Bearing Type | Angular Contact Ball Bearing |
| Base Number | 7208 |
|---|---|
| Industry Terms | spindle bearing, super precision angular contact bearing, machine tool bearing, 15 degree contact angle bearing, phenolic cage spindle bearing, ABEC 7 bearing |
| Common Misspellings | FAG 7208 TG P4, 7208TGP-4, B7208 C TPA P4 UI, B7208CTPAP4UI, 7208-C-TPA-P4-UL |
| Application Types | Machine tool spindles, grinding spindles, high-speed motorised spindles, precision gearboxes, test rigs |
| Bore Shaft Size | 40 mm (1.575 in) |
| Mpn Variants | 7208TGP4, 7208-TG-P4, 7208 TG P4, B7208-C-TPA-P4-UL, B7208C.TPA.P4.UL, B7208CTPAP4UL, B-7208-C-TPA-P4-UL, 7208C, 7208 |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Harmonization Code | 8482.10.50 |
| Part Number | B7208-C-TPA-P4-UL |
| Cross Reference 1 | SKF 7208 CD/P4A - 15 deg, P4A class |
|---|---|
| Cross Reference 2 | NSK 7208CTYNSULP4 - polyamide cage, not phenolic |
| Cross Reference 3 | Timken 2MM208WI - 15 deg, P4 class |
FAG super-precision single-row angular contact ball bearing, 40 mm bore, 80 mm outside diameter, 18 mm width. Open, straight bore, phenolic laminate cage, P4 tolerance class, universally ground for light preload. The carton and ring carry two designations for the same bearing: 7208-TG-P4 in the older FAG scheme, B7208-C-TPA-P4-UL in the current Schaeffler scheme. Single bearing. Unit Quantity: 1 Pc.
72 — ISO dimension series.
08 — bore code, 40 mm bore.
B — super-precision spindle-bearing execution.
C — 15° contact angle.
TG and TPA — fabric-base phenolic laminate cage.
P4 — tolerance class, equivalent to ABEC 7.
UL — universal grinding with light preload: two bearings of this designation mounted back-to-back or face-to-face produce a defined light preload with no shimming, and any number can be stacked in tandem.
Bore Diameter: 40 mm (1.575 in). Outside Diameter: 80 mm. Overall Width: 18 mm. Contact Angle: 15°. Precision Class: ABEC 7 / P4. Number Of Rows: 1. Rolling Elements: Ball. Bore Type: Straight. Closure Type: Open. Cage Material: Phenolic laminate (cotton-fabric-reinforced phenolic resin). Preload: Light (UL). Series: B7200 / ISO 72. Base Number: 7208. Unit Quantity: 1 Pc.
Bore form: straight, for an interference-fit spindle seat. Outer ring location: bored housing seat. Arrangements: back-to-back (DB), face-to-face (DF) and tandem (DT) with UL universal grinding.
SKF 7208 CD/P4A — 15°, P4A class. NSK 7208CTYNSULP4 — polyamide cage, not phenolic. Timken 2MM208WI — 15°, P4 class. A 7208 in an A, A5, B or E execution carries a different contact angle, and a 7208 at P5 or P0 is a different tolerance class. Part number variants: 7208TGP4, 7208-TG-P4, 7208 TG P4, B7208-C-TPA-P4-UL, B7208C.TPA.P4.UL, B7208CTPAP4UL, B-7208-C-TPA-P4-UL, 7208C, 7208.
Contact Angle: 15°, from the C in the B7208-C-TPA-P4-UL designation.
UL is universal grinding with light preload, so two bearings of this designation produce a defined light preload when mounted back-to-back or face-to-face.
A fabric-base phenolic laminate cage, designated TG or TPA.
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