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Central Surplus Bearing Finder
A faster way to search our bearing inventory Today we’re launching the Central Surplus Bearing
Availability:
1 in stock
Super-precision angular contact ball bearing set, 65 x 90 x 13 mm per bearing, 25° contact angle, light preload, ABEC 7, back-to-back matched pair. Sold as 2 Pcs.
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$169.62
1 in stock
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| MFR / Brand | SKF |
|---|---|
| MPN | 71913-ACDGB/P4A |
| Model | 71913 ACD DGB P4A |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 65 mm |
| OD | 90 mm |
| Width | 13 mm |
| Material | Bearing Steel |
|---|---|
| Series | 71900 |
| Preload | Light |
| Base Number | 71913 |
| Industry Terms | super precision bearing, spindle bearing, thin section angular contact bearing, machine tool bearing, ABEC 7 bearing, matched pair bearing, back to back bearing set |
| Common Misspellings | 71913ACDGB P4A, 71913 ACDBG/P4A, 71913-ACDG8/P4A, SKF 71913 AC DGB P4A, 71931ACDGBP4A |
| Application Types | Machine tool spindles, rotary tables, direct-drive heads, grinding spindles, precision indexers |
| Bore Shaft Size | 65 mm (2.5591 in) |
| Mpn Variants | 71913-ACDGB/P4A, 71913 ACDGB/P4A, 71913ACDGBP4A, 71913-ACD-P4A-DGB, 71913 ACD/P4ADGB, 7913 |
| Rolling Elements | Ball |
| Number Of Rows | 1 per bearing, 2 rows in the mounted pair |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Harmonization Code | 8482.10.50 |
| Part Number | 71913-ACDGB/P4A |
A matched pair of single-row super-precision angular contact ball bearings in the 719-series, 65 mm bore, 90 mm outside diameter, 13 mm width per bearing. The 719 series is the extra-thin-section angular contact family, and the rings are ground as a set for back-to-back mounting at a defined light preload.
71913 — single-row angular contact ball bearing, 65 mm bore, 719 extra-light dimension series.
AC — 25° contact angle in the SKF scheme.
CD — super-precision execution.
DGB — matched pair, back-to-back, light preload.
P4A — ABEC 7 precision class, SKF super-precision tolerance.
The 719 cross-section is thin for its bore, which keeps the bearing set compact axially and lets a large shaft run inside a small housing bore — the reason it appears in tool spindles, rotary tables and direct-drive heads where space around the shaft is short. A 25° contact angle carries more thrust and gives higher axial stiffness than a 15° execution of the same 65 x 90 x 13 mm envelope, at a lower speed ceiling. Light preload gives the set defined axial stiffness while keeping friction and running temperature moderate. Back-to-back mounting places the load lines diverging outward, which resists moment loads and holds the shaft square.
2 Pcs, one matched pair. Total mounted width of the pair is 26 mm.
The pair mounts in its ground orientation with the etched face markings aligned so the two outer rings meet at their narrow faces. Both rings are clamped fully home so the preload comes off the ground faces rather than off clamp force, and the thin cross-section makes a square, well-supported shoulder and a round housing bore important to the running accuracy.
Same-spec equivalents are 25° ABEC 7 back-to-back 71913-size pairs under other schemes, such as an NSK 7913A5TRDUM or an FAG B71913-E-T-P4S-DUM. SKF 71913 CDGB/P4A at 15°, 71913 ACDGA/P4A at extra light preload, and hybrid HCP4A executions are related sizes rather than interchanges.
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A faster way to search our bearing inventory Today we’re launching the Central Surplus Bearing
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Our team can locate, cross-reference, and source all parts.
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