RHP7015CTBSULP6Angular Contact Ball Bearing 75x115x20 mm 15° Light Preload Inner-Ring-Centred Phenolic Cage

Product Description

What this part is

RHP 7015CTBSULP6 single-row angular contact ball bearing. Bore: 75 mm. Outside Diameter: 115 mm. Overall Width: 20 mm. Contact Angle: 15°. Precision Class: P6, RHP class code EP3, ABEC 3. Cage Material: laminated phenolic resin. Cage Type: one-piece machined, inner-ring centred. Closure Type: open on both faces. Bore Type: straight. Rolling Elements: carbon chrome bearing steel balls. Series: RHP 70, ISO dimension series 10. Number Of Rows: 1.

Decoding the designation

Type 7: single-row angular contact ball bearing. Dimension series 0: ISO series 10. Bore code 15: 75 mm bore. Contact angle C: 15°. Cage TB: a one-piece machined laminated phenolic ring, centred on the inner ring rather than the outer. Grouping SU: single universal face control. Preload L: light. Precision grade P6: ABEC 3, RHP class code EP3. The carton also carries the Fafnir-scheme number 2M9115WI-CR-SUL, in which CR is a phenolic land-riding cage.

Load ratings

Dynamic Load Rating (Cr): 48.0 kN. Static Load Rating (C0r): 45.5 kN.

What these specs mean in practice

A 15° contact angle biases the bearing toward speed and radial rigidity rather than heavy thrust capacity. A 25° bearing in the same envelope carries more axial load at a lower speed ceiling.

Light preload keeps running friction and heat generation down while still removing internal play, which suits high-speed spindle service. Axial Preload, light grade, as a paired set: 290 N. Axial Stiffness, light grade, as a paired set: 92 N per micrometre. The bearing is preload-set at manufacture rather than clearance-set.

Universal face control means the inner and outer rings are the same width and the face positions are adjusted at manufacture, so any two bearings of this designation mount back-to-back or face-to-face at the same preload with no measured spacers. Mounted in tandem they share load equally.

Inner-ring centring is the distinguishing feature of the TB cage. Guiding the phenolic ring on the inner-ring land rather than the outer suits an arrangement where the inner ring rotates and the cage is carried by the faster member. Maximum Operating Temperature: 120 °C, set by the phenolic.

Quantity and configuration

Unit Quantity: 1 Pc. Arrangement: single universal (SU). Single row, open, no snap ring, no seals or shields.

Thrust direction

A single-row angular contact ball bearing supports thrust in one direction. Axial location in the opposite direction comes from a second bearing opposing this one or from a shoulder. Because the rings are universally faced, two units pair for two-directional location in a back-to-back or face-to-face set.

Mounting data

Inner ring abutment diameter, d1 min: 82 mm. Outer ring abutment diameters: D1 max 108 mm, D2 max 110 mm. Chamfer dimensions: r min 1.1 mm, r1 min 0.6 mm. Effective Load Centre (a): 22.7 mm. Internal free volume: 27.8 cm³. PCD of lubrication jets: 89.4 mm. Mass: 0.639 kg.

Interchange guidance

Same-envelope 7015 bearings interchange only when contact angle, preload grade, cage centring and precision class all match. A 7015 at 25°, one with a different preload letter, one with an outer-ring-centred TA or T cage, or one in a different tolerance class is a related size rather than a substitute.