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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:
1 in stock
Super precision angular contact ball bearing, 120 x 165 x 22 mm, 25° contact angle, phenolic cage, universal light preload, 7,000 rpm on grease.
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$380.91
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| MFR / Brand | FAG |
|---|---|
| MPN | B71924E.TPA.P4.UL |
| Model | B71924ETPAP4UL |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 120 mm |
| OD | 165 mm |
| Width | 22 mm |
| Material | Bearing Steel |
|---|---|
| Series | B719 |
| Lubricant | Oil/Grease |
| Base Number | 71924 |
| Industry Terms | Spindle bearing, super precision bearing, machine tool bearing, high speed angular contact bearing |
| Bore Shaft Size | 120 mm |
| Mpn Variants | B71924ETPAP4UL, B-71924-E-TPA-P4-UL, B71924 E TPA P4 UL, B71924E.T.P4S.UL, 7924-E/A |
| Closure Type | Open |
| Rolling Elements | Ball |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 25° |
| Part Number | B71924E.TPA.P4.UL |
| Cross Reference 1 | FAG B71924E.T.P4S.UL - current designation |
|---|---|
| Cross Reference 2 | SKF 71924 ACD/P4ADGB |
| Cross Reference 3 | NSK 7924A5TYNSULP4 |
| Cross Reference 4 | Fafnir 3MM9324WI |
| Cross Reference 5 | FAG B71924C.T.P4S.UL - 15 deg vs 25 deg |
FAG B71924E.TPA.P4.UL super precision angular contact ball bearing, also called a spindle bearing. Series B719, ISO 719 dimension series. Bore: 120 mm. Outside diameter: 165 mm. Width: 22 mm. Single row, open, straight bore. Searchable forms: B71924E.TPA.P4.UL, B71924ETPAP4UL, B-71924-E-TPA-P4-UL, B71924 E TPA P4 UL, 7924.
Contact Angle: 25°. Cage Material: laminated fabric phenolic. Precision Class: P4, ABEC 7. Preload: light. Arrangement: universal single bearing, adjusted for mounting in pairs or sets. Preload force in a light-preload pair: 587 N.
A 25° contact angle carries more thrust and gives higher axial rigidity than a 15° bearing on the same envelope, at a lower speed ceiling. Basic dynamic load rating, radial: 72 kN. Basic static load rating, radial: 56 kN. Fatigue load limit, radial: 5.0 kN. Limiting speed: 7,000 rpm on grease, 11,000 rpm on oil. Axial rigidity in light preload: 255 N/µm. The 719 series runs a narrower, thinner section than a 70 series bearing of the same bore, which keeps mass and spindle overhang down.
One bearing. Universal design: two or more mount together back-to-back, face-to-face or in tandem, and a pair sets light preload without shims or measurement.
Diameter shaft shoulder: 128 mm. Shoulder diameter outer ring: 157 mm. Maximum recess radius: 0.6 mm. Minimum chamfer dimension: 1.1 mm. Distance between the apexes of the pressure cones: 44.2 mm. Operating temperature range: -30 °C to 100 °C. Weight: 1.14 kg.
Current Schaeffler designation for this bearing: B71924E.T.P4S.UL. Crosses at the same 25° contact angle, P4 class and light universal preload: SKF 71924 ACD/P4ADGB, NSK 7924A5TYNSULP4, Fafnir 3MM9324WI. FAG B71924C.T.P4S.UL fits the same envelope with a 15° contact angle.
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