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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:
2 in stock
Super-precision angular contact ball bearing pair, 50 mm bore × 90 mm OD × 20 mm wide each, 25° contact angle, light preload, ABEC 7, sold as a matched duplex pair of 2 pieces.
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$227.48
2 in stock
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| MFR / Brand | RHP |
|---|---|
| MPN | 7210ETDULP4 |
| Model | 7210 E T DUL P4 / 3MM210WI CR DUL |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 50 mm |
| OD | 90 mm |
| Width | 20 mm |
| Material | Bearing Steel |
|---|---|
| Series | 7200 |
| Lubricant | Oil |
| Base Number | 7210 |
| Industry Terms | spindle bearing, precision angular contact bearing, matched pair bearing, duplex set, ABEC 7 bearing, super precision ball bearing, 7210 bearing |
| Common Misspellings | 7210 ETDUL P4, 7210ETDULP-4, 7210ETDUIP4, RHP 7210 ET DUL, 7120ETDULP4 |
| Application Types | Machine tool spindles, grinding and boring heads, precision ballscrew supports, indexing tables, high-speed gearboxes |
| Bore Shaft Size | 50 mm (1.9685 in) |
| Mpn Variants | 7210ETDULP4, 7210-E-T-DUL-P4, 7210 E T DUL P4, B7210X3TADULEP7, 7210EDULP4 |
| Closure Type | Open |
| Rolling Elements | Ball |
| Number Of Rows | 1 per bearing, 2 in the pair |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Harmonization Code | 8482.10.50 |
| Part Number | 7210ETDULP4 |
| Cross Reference 1 | RHP B7210X3TADULEP7 |
|---|---|
| Cross Reference 2 | NSK 7210A5TRDULP4 |
| Cross Reference 3 | FAG B7210-E-T-P4S-DUL |
| Cross Reference 4 | Fafnir 3MM210WI CR DUL |
| Cross Reference 5 | SKF 7210 ACD/P4ADGA - extra light preload |
| Cross Reference 6 | RHP 7210CTDULP4 - 15 deg vs 25 deg |
| Cross Reference 7 | RHP 7210ETDUMP4 - medium preload |
A matched duplex pair of super-precision angular contact ball bearings, 50 mm bore, 90 mm outside diameter, 20 mm width per bearing, with a 25° contact angle, phenolic cage, light preload and P4 running accuracy.
7210 — angular contact ball bearing, 72 series, bore code 10 = 50 mmE — 25° contact angle in the RHP/NSK scheme (X3 in the B-series equivalent)T — phenolic (laminated fabric) cageDU — duplex, ground as a matched pairL — light preloadP4 — ABEC 7 precision class, equivalent to the RHP EP7 code
A 25° contact angle carries more thrust and less speed than a 15° angle in the same envelope, which suits spindles and screw drives with substantial axial load.
Duplex grinding sets the ring face offset at the factory, so clamping the pair together reproduces a defined preload without shimming and gives repeatable axial stiffness. Light preload keeps heat generation and running torque at the low end of the range and leaves the highest speed capability of the three preload grades.
A phenolic cage is light and self-lubricating, suiting high dn values with oil-mist or grease lubrication, with a temperature ceiling below that of a metal cage.
P4 holds bore, outside diameter and raceway runout to ABEC 7 limits, the class used for machine tool spindles and precision screw drives.
Two bearings, supplied as one matched duplex pair. Combined width across the pair is 40 mm. Open both faces, no seals or shields.
The pair is mounted in the marked orientation with the face marks aligned so the ground offsets produce the intended preload, clamped against square ground abutment faces, and handled as a set.
25° light-preload duplex pairs in the same size: RHP B7210X3TADULEP7, NSK 7210A5TRDULP4, FAG B7210-E-T-P4S-DUL, Fafnir 3MM210WI CR DUL. SKF 7210 ACD/P4ADGA is the SKF form at extra light preload. A 7210C pair has a 15° contact angle and a DUM or DUH pair has medium or heavy preload; both share the 50 × 90 × 20 mm envelope and are related sizes.
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Rockwell’s own product page for the Kinetix 6000 is down
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.
Our team can locate, cross-reference, and source all parts.
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