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Matched duplex pair of super-precision angular contact ball bearings, 90 mm bore x 140 mm OD x 24 mm wide each, 15° contact angle, medium preload, ABEC 7. Sold as 2 Pcs.
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$552.01
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| MFR / Brand | RHP |
|---|---|
| MPN | 7018CTDUMP4 |
| Model | 7018C T DUM P4 / 2MM9118WI CR DUM / B7018X2TADULEP7 |
| Bearing Type | Angular Contact Ball Bearing |
| ID | 90 mm |
| OD | 140 mm |
| Width | 24 mm |
| Material | Chrome Steel |
|---|---|
| Condition | New |
| Preload | Medium preload |
| Base Number | 7018 |
| Industry Terms | super precision spindle bearing set, matched pair angular contact, machine tool bearing, ABEC 7 duplex |
| Common Misspellings | 7018 CTDUMP4, RHP 7018CTDUM P4, Ransome Hoffmann Pollard, 7018CTDUMP-4 |
| Application Types | Machine tool spindles, grinding spindles, precision gearboxes, rotary tables |
| Total Width | 48 mm stacked as a pair |
| Country Region Of Manufacture | United Kingdom |
| Bore Shaft Size | 90 mm (3.543 in) |
| Mpn Variants | 7018CTDUMP4, 7018-C-T-DUM-P4, 7018 C T DUM P4, 7018C, 7018CTDUM, B7018X2TADULEP7 |
| Arrangement Configuration | DU — duplex matched pair |
| Precision Class | P4 / ABEC 7 |
| Precision Rating | ABEC 7 / P4 |
| Rolling Elements | Ball |
| Item Weight | 2.5 lbs |
| Number Of Rows | 1 per bearing |
| Harmonization Code | 8482.10.50.28 |
| Contact Angle | 15° |
| Mounting Arrangement | Back-to-back (DB) or face-to-face (DF) |
| Design Units | Metric |
| Part Number | 7018CTDUMP4 |
| Cross Reference 1 | Fafnir 2MM9118WI-CR-DUM |
|---|---|
| Cross Reference 2 | FAG B7018C.T.P4S.UM |
| Cross Reference 3 | SKF 7018 CD/P4ADGB |
| Cross Reference 4 | NSK 7018CTRDUMP4 |
An RHP 7018CTDUMP4 matched duplex pair of super-precision single-row angular contact ball bearings in the 72 dimension series. Each bearing is 90 mm bore, 140 mm outside diameter, 24 mm wide, giving 48 mm total stack width. Open on both faces, phenolic cage.
7018 — single-row angular contact, 90 mm bore, 72 seriesC — 15° contact angle in the RHP/Timken schemeT — phenolic cageDU — duplex, ground as a matched setM — medium preloadP4 — ABEC 7 precision
The 15° angle favours speed and radial rigidity; the 25° 7018E of the same envelope trades speed for thrust. Medium preload raises radial and axial stiffness over the light grade and runs warmer, which suits spindles where deflection under cut matters more than top speed. As a duplex set the preload arrives ground in.
Bore: 90 mmOutside diameter: 140 mmWidth: 24 mm per bearing, 48 mm stackedContact angle: 15°Precision: P4 / ABEC 7Preload: medium, factory matchedRows: 1 per bearingClosure: 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, medium preload: Fafnir 2MM9118WI-CR-DUM, FAG B7018C.T.P4S.UM, SKF 7018 CD/P4ADGB, NSK 7018CTRDUMP4. RHP B7018X2TADULEP7 is the B-series equivalent number. The 7018E at 25° is a related size rather than an interchange.
$305.98
9 in stock
$305.98
9 in stock
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