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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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2 in stock
Super-precision angular contact ball bearing, 35 mm bore x 55 mm OD x 10 mm width, 15° contact angle, P4S class, light preload universal grinding. 1 Pc.
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$107.07
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| MFR / Brand | FAG |
|---|---|
| MPN | B71907-C-T-P4S-UL |
| Model | B71907C T P4S UL / 2MM9307 / 7907 C T Y |
| Bearing Type | Angular Contact Ball Bearing |
| Base Number | 71907 |
|---|---|
| Industry Terms | spindle bearing, super precision angular contact bearing, machine tool bearing, 15 degree contact angle bearing, phenolic cage spindle bearing, thin section angular contact bearing, ABEC 7 bearing |
| Common Misspellings | FAG 71907 TG P4, 71907TGP-4, B71907 C T P4S UI, B71907CTP4SUI, 719-07-TG-P4, 71907TG4 |
| Application Types | Machine tool spindles, grinding spindles, high-speed motorised spindles, precision indexing heads, test and metrology rigs |
| Bore Shaft Size | 35 mm (1.378 in) |
| Mpn Variants | 71907TGP4, 71907-TG-P4, 71907 TG P4, B71907-C-T-P4S-UL, B71907C.T.P4S.UL, B71907CTP4SUL, B-71907-C-T-P4S-UL, 71907C, 7907, 7907 C T Y, 2MM9307 |
| Precision Class | P4S (ABEC 7 dimensional, ABEC 9 running accuracy) |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 15° |
| Part Number | B71907-C-T-P4S-UL |
| Cross Reference 1 | Timken Fafnir 2MM9307WI |
|---|---|
| Cross Reference 2 | NSK 7907CTYNSULP4 |
| Cross Reference 3 | SKF 71907 CD/P4A |
A FAG super-precision single-row angular contact ball bearing, 35 mm bore, 55 mm outside diameter, 10 mm width. Open, straight bore, machined phenolic laminate cage, P4S tolerance class, universally ground for light preload. The same bearing is designated 71907-TG-P4 in the older FAG scheme and B71907-C-T-P4S-UL in the current Schaeffler scheme. Unit Quantity: 1 Pc.
719 — ISO dimension series, the extra-light, narrow cross-section family.
07 — bore code for a 35 mm bore.
B — super-precision spindle-bearing execution.
C — 15° contact angle.
T and TG — machined phenolic laminate cage.
P4S — tolerance class, ABEC 7 dimensional limits with ABEC 9 running accuracy.
UL — universal grinding with light preload: two bearings of this designation come together back-to-back or face-to-face at a defined light preload with no shims or ground spacers, and any number can be stacked in tandem.
Bore Diameter: 35 mm. Outside Diameter: 55 mm. Overall Width: 10 mm. Contact Angle: 15°. Number Of Rows: 1. Rolling Elements: Ball. Bore Type: Straight. Closure Type: Open. Material: Chrome steel rings and balls, phenolic laminate cage. Cage Material: Phenolic laminate (cotton-fabric-reinforced phenolic resin), machined, land guided. Precision Class: P4S (ABEC 7 dimensional, ABEC 9 running accuracy). Preload: Light. Series: B71900 / ISO 719 extra-light. Harmonization Code: 8482.10.50. Unit Quantity: 1 Pc.
Envelope: 35 x 55 x 10 mm. Bore form: straight. Outer ring location: bored housing against a square shoulder. Thrust face: identified by the high shoulder on each ring. Back-to-back (DB) arrangement: the stiffest, with moment capacity. Face-to-face (DF) arrangement: tolerates more misalignment. Tandem (DT) arrangement: sums thrust in one direction.
Timken/Fafnir 2MM9307WI is the same 35 x 55 x 10 mm 15° super-precision envelope, its 2MM prefix denoting the 15° angle. NSK 7907CTYNSULP4 and SKF 71907 CD/P4A are the same series, angle and class. A 71907 in an A5, B or E execution carries a different contact angle, and a 71907 at P5 or P6 is a different tolerance class. The wider 7907 in the 79 dimension series is a different cross-section.
15°, from the C in B71907-C-T-P4S-UL.
Universal grinding with light preload, so two bearings of this designation pair back-to-back or face-to-face at a defined light preload.
A machined phenolic laminate cage.
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