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Super-precision angular contact ball bearing, 75 mm bore × 115 mm OD × 20 mm wide, 15° contact angle, universally ground for light preload, ABEC 7, sold as 1 piece.
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| MFR / Brand | RHP |
|---|---|
| MPN | 7015CTSULP4 |
| Model | 7015 C T SUL P4 / B7015X2 T UL EP7 / 2MM9115WI CR SUL |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 75 mm |
| OD | 115 mm |
| Width | 20 mm |
| Material | Bearing Steel |
|---|---|
| Series | 7000 |
| Condition | New |
| Preload | Light |
| Base Number | 7015 |
| Industry Terms | spindle bearing, precision angular contact bearing, universally ground bearing, ABEC 7 bearing, super precision ball bearing |
| Common Misspellings | 7015 CTSUL P4, 7015CTSULP-4, 7015CTSUIP4, RHP 7015 CT SUL, 7051CTSULP4 |
| Application Types | Machine tool spindles, grinding spindles, precision ballscrew supports, indexing and rotary tables, high-speed gearboxes |
| Bore Shaft Size | 75 mm (2.9528 in) |
| Mpn Variants | 7015CTSULP4, 7015-C-T-SUL-P4, 7015 C T SUL P4, 7015CTSUL P4, 7015C |
| Arrangement Configuration | Single, universally ground (SU) — pairable back-to-back, face-to-face or tandem |
| Precision Class | P4 (ABEC 7) |
| Min Temp | -40 °C |
| Cage Type | Phenolic |
| Dynamic Load Rating | 38 kN |
| Static Load Rating | 37 kN |
| Precision Rating | ABEC 7 / P4 |
| Rolling Elements | Ball |
| Max Temp | 120 °C |
| Item Weight | 1.41 lbs |
| Cage Material | Phenolic (laminated fabric) |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 15° |
| Mounting Arrangement | Universal |
| Design Units | Metric |
| Internal Clearance | CN |
| Part Number | 7015CTSULP4 |
| Cross Reference 1 | NSK 7015CTRSULP4 |
|---|---|
| Cross Reference 2 | FAG B7015-C-T-P4S-UL |
| Cross Reference 3 | SKF 7015 CD/P4A |
| Cross Reference 4 | Fafnir 2MM9115WI CR SUL |
| Cross Reference 6 | 7015ETSULP4 (related size, 25° contact angle) |
A super-precision angular contact ball bearing, 75 mm bore, 115 mm outside diameter, 20 mm width, with a 15° contact angle, phenolic cage, universal grinding for light preload and P4 running accuracy.
7015 — angular contact ball bearing, 70 series, bore code 15 = 75 mmC — 15° contact angle in the RHP/NSK schemeT — phenolic (laminated fabric) cageSU — single bearing, universally groundL — light preloadP4 — ABEC 7 precision class
Universal grinding means the ring faces are ground so that any two bearings of the same designation form a matched set in back-to-back, face-to-face or tandem orientation, with the L offset producing light preload in a pair.
A 15° contact angle favours speed and radial stiffness; a 25° angle in the same envelope carries more thrust and runs slower. Light preload gives the lowest heat generation and the highest speed capability of the three grades, with less axial rigidity than medium or heavy.
A phenolic cage is light and self-lubricating, suiting high dn values with oil-mist or grease lubrication, and has a lower temperature ceiling than 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.
One bearing, universally ground. Open both faces, no seals or shields.
Universally ground rings are mounted with the face markings oriented for the intended arrangement, clamped against square ground abutment faces. A single bearing runs against an adjacent bearing or an axially free support in the spindle arrangement.
Same-spec single equivalents: NSK 7015CTRSULP4, FAG B7015-C-T-P4S-UL, SKF 7015 CD/P4A, Fafnir 2MM9115WI CR SUL. Variants with a 25° angle (7015E, 7015A5) or with medium or heavy preload share the 75 × 115 × 20 mm envelope with different internal geometry and are related sizes.
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