RHP7013CTSULP4Super Precision Angular Contact Ball Bearing 65x100x18 mm, 15° Contact Angle, Light Preload, ABEC 7

Product Description

What this part is

A single-row super-precision angular contact ball bearing in ISO dimension series 10. Bore: 65 mm (2.5591 in). Outside Diameter: 100 mm (3.9370 in). Width: 18 mm (0.7087 in). Contact Angle: 15°. Cage Material: Phenolic. Cage Type: Machined, outer ring guided. Preload: Light (L). Precision Class: P4 (ISO Class 4, ABEC 7). Seal Type: Open. Bore Type: Straight. Number of Rows: 1. Rolling Elements: Steel balls. Bearing Material: Carbon chrome bearing steel to BS970 534A99/535A99 or SAE 52100.

Decoding the designation

In the RHP super-precision scheme 7 is a single-row angular contact ball bearing, 0 is ISO dimension series 10, bore code 13 is a 65 mm bore, C is a 15° contact angle, T is a machined laminated phenolic cage, SU is universal face control, L is light preload and P4 is ISO Class 4. The RHP B-series carton form B7013X2TAULEP7 reads the same bearing a second way, with X2 for the 15° angle and EP7 for the P4 class.

Published ratings

Dynamic Load Rating: 37,000 N. Static Load Rating: 34,500 N. Limiting Speed: 21,600 rpm oil/air; 13,300 rpm grease. Axial Preload, light class, as a paired set: 250 N. Axial Stiffness, light class, as a paired set: 82 N/µm. Maximum Operating Temperature: 120 °C, set by the laminated phenolic cage. Mass: 0.435 kg (0.959 lb).

What these specs mean in practice

A 15° contact angle carries more radial load and runs faster than the 25° build of the same size, and carries correspondingly less thrust. Light preload favours speed and low heat generation over maximum axial rigidity, the usual choice for the faster end of a spindle range. The bearing is preload-set at manufacture rather than clearance-set. The laminated phenolic cage is outer ring guided, light and good at holding an oil film. Series 10 gives a heavier section and a higher load rating than the 719 series at the same bore. The tabulated limiting speeds are single-bearing figures under spring preload with the inner ring rotating; a back-to-back pair at light preload takes a 0.80 speed factor, and face-to-face mounting takes a further 50 per cent reduction.

Quantity and configuration

1 Pc. Universal face control single (SU), open on both faces. Universal facing means any two bearings of the same designation and preload class stack back-to-back, face-to-face or in tandem and arrive at the specified preload as ground.

Mounting data

Inner ring abutment diameter d1: 72 mm minimum. Outer ring abutment diameter D1: 93 mm maximum. Outer ring seat diameter D2: 95 mm maximum. Fillet radius r: 1.1 mm minimum. Fillet radius r1: 0.6 mm minimum. Effective Load Centre a: 20.0 mm. Internal free volume: 19.0 cm³. PCD of lubrication jets: 77.5 mm.

Interchange guidance

RHP super-precision designations cross-reference directly to NSK, which acquired RHP and continued the numbering. The same-spec equivalents are NSK 7013CTRSULP4 and Timken 2MM9113WI CR UL. Bearings sharing the 65 x 100 x 18 mm envelope with a different contact angle or preload class, such as the 7013A5 at 25° or a medium-preload pair, are related sizes rather than substitutions.