RHP7011CTBSULP0Angular Contact Ball Bearing – 55 mm ID, 90 mm OD, 18 mm Width, Open, 15° Contact Angle, Light Preload, Phenolic Cage

Product Description

What this part is

RHP 7011CTBSULP0 single-row angular contact ball bearing, ISO dimension series 10. Bore: 55 mm. Outside Diameter: 90 mm. Overall Width: 18 mm. Contact Angle: 15°. Number Of Rows: 1. Bore Type: Straight. Closure Type: Open. Rolling Elements: chrome steel balls. Cage Material: laminated phenolic. Precision Class: ABEC 1 / P0. Unit Quantity: 1 Pc.

Decoding the designation

7011 — ISO dimension series 10, bore code 11, 55 mm bore. C — Contact Angle: 15°. TB — Cage Type: one-piece machined cage, inner ring centred, in laminated phenolic. SU — universal face control: the two ring faces are ground to a fixed offset at manufacture. L — Preload: light. P0 — Precision Class: ABEC 1. The carton also carries the older RHP B-series form B7011X2TUEP1, in which X2 is the same 15° contact angle and EP1 the same accuracy grade.

What these specs mean in practice

Dynamic Load Rating: 34.0 kN (7,643 lbf). Static Load Rating: 28.6 kN (6,429 lbf). A 15° contact angle biases the bearing toward speed and radial capacity; a 25° bearing on the same envelope carries more thrust and turns more slowly. Universal face control lets any two of these bearings clamp up to the intended preload back-to-back, face-to-face or in tandem with no ground spacer. Light preload keeps the balls in rolling contact with the least friction and heat of the four RHP preload grades: mounted as a back-to-back pair it develops 200 N of axial preload and 69 N/µm of axial stiffness. Maximum recommended operating temperature is 120 °C, set by the laminated phenolic cage. Internal Clearance: N/A — the bearing is preload-set rather than clearance-set.

Quantity and configuration

Unit Quantity: 1 Pc. One universally faced single bearing. A single bearing carries thrust in one direction; a back-to-back or face-to-face pair carries it in both, and a tandem pair shares a one-way thrust load between the two bearings.

Mounting data

Shaft abutment diameter d1: 62 mm minimum. Housing abutment diameter D1: 83 mm maximum. Second housing abutment diameter D2: 85 mm maximum. Chamfer r: 1.1 mm minimum. Chamfer r1: 0.6 mm minimum. Effective load centre a: 18.7 mm. Internal free volume: 16.9 cm³. Pitch circle diameter for lubrication jets: 67.3 mm. Mass: 0.375 kg (0.83 lb).

Interchange guidance

Equivalents on the same 55 x 90 x 18 mm envelope at 15°, universally faced and light preload: SKF 7011 CDGA and FAG B7011-C-T-UL. The 7011A5 form of this number is a 25° bearing on the same envelope — a related size, and a different load and speed characteristic.