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Central Surplus Bearing Finder
A faster way to search our bearing inventory Today we’re launching the Central Surplus Bearing
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1 in stock
Single-row super-precision angular contact ball bearing, 85 x 130 x 22 mm, 15° contact angle, phenolic cage, ABEC 7, universally ground medium preload.
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$76.49
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| MFR / Brand | RHP |
|---|---|
| MPN | 7017CTSUMP4 |
| Model | 7017 CTSUM P4 |
| Bearing Type | Tapered Roller Bearing Cup, Open |
| ID | 85 mm |
| OD | 130 mm |
| Width | 22 mm |
| Material | Chrome bearing steel |
|---|---|
| Series | 7000 super-precision spindle series |
| Base Number | 7017 |
| Industry Terms | super precision angular contact bearing, spindle bearing, ABEC 7 bearing, P4 bearing, universally ground, medium preload, 15 degree contact angle, phenolic cage bearing |
| Common Misspellings | RHP 7017 CTSUMP4, 7017CTSUM P4, 7017-CTSUMP4, RPH 7017, 7017CTSUMP-4 |
| Application Types | Machine tool spindles, grinding and boring spindles, precision gearboxes, spindle rebuilds |
| Bore Shaft Size | 85 mm |
| Mpn Variants | 7017CTSUMP4, 7017-C-T-SUM-P4, 7017 C T SUM P4, 7017CTSUM, 7017C, 7017CTP4 |
| Manufacturer Status | RHP (Ransome & Marles) became part of NSK; current equivalent numbering is NSK 7017C |
| Compatible With Replaces | RHP 7017C spindle positions, NSK 7017C, 7017 15° super-precision medium-preload spindle bearings |
| Rolling Elements | Balls |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | No |
| Part Number | 7017CTSUMP4 |
| Cross Reference 6 | SKF 7017 ACD/P4A — same 85x130x22 mm envelope at 25° |
|---|---|
| Cross Reference 7 | NSK 7017A5TYNSUMP4 / RHP 7017ETSUMP4 — same envelope at 25° |
| Cross Reference 9 | RHP 7017CTDUMP4 — factory-matched medium-preload duplex pair |
An RHP 7017CTSUMP4 super-precision single-row angular contact ball bearing for machine-tool spindles. Brand: RHP. Part Number: 7017CTSUMP4. Series: 7000 super-precision spindle series. Base Number: 7017. Bore: 85 mm. Outside Diameter: 130 mm. Overall Width: 22 mm. Contact Angle: 15°. Number Of Rows: 1. Rolling Elements: Balls. Bearing Material: Chrome bearing steel. Cage Type: Machined, ball-guided. Cage Material: Phenolic laminated fabric. Precision Class: ISO P4 / ABEC 7. Preload: Medium (M). Arrangement: SU, single and universally ground. Bore Type: Straight. Closure Type: Open. Dynamic Load Rating: 76.0 kN. Static Load Rating: 58.5 kN. Limiting Speed: 10,700 rpm grease, 16,300 rpm oil-air. Effective Load Centre: 25.4 mm. Permissible Axial Load: 38.0 kN. Item Weight: 0.898 kg (1.98 lb). Design Units: Metric.
7017: single-row angular contact ball bearing in the 85 x 130 x 22 mm envelope. C: 15° contact angle in RHP nomenclature. T: phenolic laminated-fabric cage. SUM: single bearing, universally ground, medium preload class. P4: ISO tolerance class 4, equivalent to ABEC 7.
A 15° contact angle is the high-speed end of the range: low centrifugal ball loading, low heat generation and a high permissible DN value, with less thrust capacity and axial stiffness than a 25° or 40° execution. Medium preload restores stiffness — the set deflects less under cutting load than a light-preload set while running cooler and drawing less power than a heavy one. Universal grinding cuts the ring faces to a controlled offset, so two bearings of this designation clamp up to the same medium preload in DB, DF or DT arrangement without shims or bench measurement. P4 / ABEC 7 controls bore, outside diameter, width and above all radial and axial runout. The phenolic cage is light, self-lubricating and quiet, and is rated for continuous service to 120 °C.
Unit Quantity: 1 Pc. Arrangement / Configuration: SU, single and universally ground, so two of these clamp up into a defined medium-preload pair. The factory-matched medium-preload pair carries the DUM designation.
RHP became part of NSK, so the current-nomenclature equivalent is NSK 7017CTRSULP4 / 7017CTYNSUMP4 — NSK C is also 15°, making that a direct match. Other direct 85 x 130 x 22 mm super-precision 15° equivalents: SKF 7017 CD/P4A, FAG B7017-C-T-P4S-UM, NTN 7017CT1P4 and Fafnir / Timken 2MM9117WI. Carried as same-envelope references with the difference named: SKF 7017 ACD/P4A, NSK 7017A5TYNSUMP4 and RHP 7017ETSUMP4 are the same envelope at 25°, and FAG 7017-B-TVP-P4 is the same envelope at 40°. Contact angle and preload class are the two fields that decide a substitution.
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A faster way to search our bearing inventory Today we’re launching the Central Surplus Bearing
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