Motor Starters vs. Contactors vs. Overload Relays: What Each One Does and Why You Need All Three
When a motor stops running, the first instinct is to find the part that looks
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.
List Price
$227.48
2 in stock
2 in stock
On the Shelf & Ready to Ship
On all orders
No Risk, No Hassle
Also Available From:
| 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 |
| Condition | New |
| Lubricant | Oil |
| Preload | Light |
| 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 |
| Total Width | 40 mm (1.5748 in) across the pair |
| Bore Shaft Size | 50 mm (1.9685 in) |
| Mpn Variants | 7210ETDULP4, 7210-E-T-DUL-P4, 7210 E T DUL P4, B7210X3TADULEP7, 7210EDULP4 |
| Arrangement Configuration | Duplex (DU), universally ground matched pair |
| Precision Class | P4 (ABEC 7, RHP EP7) |
| Cage Type | Outer Ring Guided |
| Dynamic Load Rating | 35 kN / 7868 lbf |
| Static Load Rating | 23.2 kN / 5215 lbf |
| Precision Rating | ABEC 7 / P4 |
| Rolling Elements | Ball |
| Item Weight | 1.05 lbs |
| Cage Material | Phenolic (laminated fabric) |
| Limiting Speed | 16000 rpm |
| Number Of Rows | 1 per bearing, 2 in the pair |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 25° |
| Mounting Arrangement | Universal |
| Design Units | Metric |
| Part Number | 7210ETDULP4 |
| Cross Reference 1 | RHP B7210X3TADULEP7 |
|---|---|
| Cross Reference 2 | FAG B7210-E-T-P4S-DUL |
| Cross Reference 3 | SKF 7210 ACD/P4ADGA |
| Cross Reference 4 | NSK 7210A5TRDULP4 |
| Cross Reference 6 | 7210CTDULP4 (related size, 15° contact angle) |
| Cross Reference 7 | 7210ETDUMP4 (related size, 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.
Same-spec equivalents to this pair: RHP B7210X3TADULEP7, FAG B7210-E-T-P4S-DUL, SKF 7210 ACD/P4ADGA, NSK 7210A5TRDULP4, Fafnir 3MM210WI CR DUL. 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.
$95.00
148 in stock
$137.64
92 in stock
A shipping cutoff banner measures a vendor’s dock. It tells
When a motor stops running, the first instinct is to find the part that looks
From Caligula’s luxury fleet to modern factories, this is the story of how a single
When sourcing a replacement bearing, you will often find both Timken and SKF options for
Our team can locate, cross-reference, and source all parts.
Our team can locate, cross-reference, and source all parts.
Sort
Brand
Price
MPN
Categories
