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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 duplex pair of super-precision angular contact ball bearings, 75 mm bore x 130 mm OD x 25 mm wide each, 15° contact angle, light preload, ABEC 7. Sold as 2 Pcs.
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| MFR / Brand | RHP |
|---|---|
| MPN | 7215CTDULP4 |
| Model | 7215CTDULP4 |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 75 mm |
| OD | 130 mm |
| Width | 25 mm |
| Material | Bearing Steel |
|---|---|
| Series | 7200 |
| Lubricant | Oil/Grease |
| Base Number | 7215 |
| Industry Terms | super precision spindle bearing set, matched pair angular contact, machine tool bearing, ABEC 7 duplex |
| Common Misspellings | 7215 CTDULP4, RHP 7215CTDUL P4, Ransome Hoffmann Pollard, 7215CTDULP-4 |
| Application Types | Machine tool spindles, grinding spindles, precision gearboxes, rotary tables |
| Bore Shaft Size | 75 mm (2.953 in) |
| Mpn Variants | 7215CTDULP4, 7215-C-T-DUL-P4, 7215 C T DUL P4, 7215C, 7215CTDUL |
| Rolling Elements | Balls |
| Number Of Rows | 1 per bearing |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Harmonization Code | 8482.10.50.68 |
| Contact Angle | 15° |
| Part Number | 7215CTDULP4 |
| Cross Reference 1 | SKF 7215 CD/P4ADGB (15 deg, light preload, universal) |
|---|---|
| Cross Reference 2 | FAG B7215C.T.P4S.UL (15 deg, light preload, universal) |
| Cross Reference 3 | NSK 7215CTRDULP4 (15 deg, light preload, phenolic cage) |
| Cross Reference 4 | Fafnir 2MM215WI-CR-DUL (15 deg, light preload, DUL pair) |
| Cross Reference 5 | NSK 7215CTYNDULP4 (polyamide cage, not phenolic) |
An RHP 7215CTDULP4 matched duplex pair of super-precision single-row angular contact ball bearings in the 72 dimension series. Each bearing is 75 mm bore, 130 mm outside diameter, 25 mm wide, giving 50 mm total stack width. Open on both faces, phenolic cage.
7215 — single-row angular contact, 75 mm bore, 72 series. C — 15° contact angle in the RHP/Timken scheme. T — phenolic cage. DU — duplex, ground as a matched set. L — light preload. P4 — ABEC 7 precision.
The 72-series section is heavier than the 79 and 70 series at the same bore, so this size carries more load for a given shaft. A 15° contact angle favours speed and radial stiffness over thrust. Light preload gives the lowest running temperature of the preload grades, and as a duplex set it arrives ground in.
Bore: 75 mm. Outside diameter: 130 mm. Width: 25 mm per bearing, 50 mm stacked. Contact angle: 15°. Precision: P4 / ABEC 7. Preload: light, factory matched. Rows: 1 per bearing. Closure: open.
Matched duplex pair. 2 Pcs per sale unit.
Each bearing carries thrust in one direction; the pair mounted back-to-back or face-to-face covers both. The etched marks on the outer rings align to hold the matched offset as ground.
Same-spec matched pairs at 15°, ABEC 7, light preload: Fafnir 2MM215WI-CR-DUL, FAG B7215C.T.P4S.UL, SKF 7215 CD/P4ADGB (DGB is the light preload code; DGA is extra light and DGC medium), NSK 7215CTRDULP4. NSK 7215CTYNDULP4 has a polyamide cage rather than phenolic. The 7215E at 25° and the SKF 7215 ACD at 25° are related sizes rather than interchanges.
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