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). Overall Width: 18 mm (0.7087 in). Contact Angle: 15°. Cage Material: Laminated phenolic resin. Cage Type: Machined, outer ring guided. Preload: Light (L). Precision Class: P4 (ISO Class 4, ABEC 7). Bearing Class: P4 (ISO Class 4). Precision Rating: ABEC 7. Seal Type: Open, no seal or shield. Bore Type: Straight. Number Of Rows: 1. Rolling Elements: Steel balls. Snap ring included: No. Arrangement / Configuration: Single universal (SU). Bearing Material: Carbon chrome bearing steel to BS970 534A99/535A99 or SAE 52100. Design Units: Metric. Harmonization Code: 8482.10.50.

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 resin 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 (Cr): 37.0 kN, 37,000 N. Static Load Rating (C0r): 34.5 kN, 34,500 N. Limiting Speed: 21,600 rpm oil/air; 13,300 rpm grease. Those speeds are the figures for this single bearing under a spring preload with the inner ring rotating. Axial Preload, light class, as a paired set: 250 N. Axial Stiffness, light class, as a paired set: 82 N/µm. Lubricant: Oil/air or grease. Maximum Operating Temperature: 120 °C, set by the laminated phenolic resin cage. Item weight: 0.435 kg (0.959 lb). Radial runout of the assembled inner ring, Kia: 4 µm. Radial runout of the assembled outer ring, Kea: 5 µm. Reference face runout with bore, Sd: 5 µm. Outer diameter runout with reference face, SD: 5 µm.

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 bearing is preload-set at manufacture rather than clearance-set. The laminated phenolic resin 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. P4 holds bore, outside diameter, width and running accuracy to single-digit micron limits.

Quantity and configuration

Unit Quantity: 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. Item Weight: 0.435 kg (0.959 lb).

Cross-references

RHP super-precision designations carry over to NSK, which acquired RHP and continued the numbering. Cross-references: NSK 7013CTRSULP4 and Fafnir 2MM9113WI CR, and the RHP B-series carton form is B7013X2TAULEP7. The 7013A5 is the same 65 x 100 x 18 mm size at 25°.