RHP7910CTSULP4Angular Contact Ball Bearing — 50 mm ID, 72 mm OD, 12 mm Width, 15° Contact Angle, ABEC 7 / P4, Light Preload, Thin Section

Product Description

What this part is:

RHP 7910CTSULP4 is a single-row super-precision angular contact ball bearing in the thin 719 section, ISO base number 71910. Unit Quantity: 1 Pc. Arrangement / Configuration: single universal (SU), open on both faces.

Decoding the designation:

7 — single-row angular contact ball bearing in the RHP super-precision scheme.

9 — ISO dimension series 19.

10 — bore code, 50 mm bore.

C — 15° contact angle.

T — machined laminated phenolic resin cage.

SU — universal face control, so two pieces of this designation can be arranged back-to-back, face-to-face or in tandem.

L — light preload.

P4 — ISO Class 4 (ABEC 7).

Specifications:

Bore Diameter: 50 mm. Outside Diameter: 72 mm. Overall Width: 12 mm. Contact Angle: 15°. Precision Class: ABEC 7 / P4. Preload: Light (L). Cage Material: Laminated phenolic resin. Cage Type: Machined, outer ring guided. Rolling Elements: Steel balls. Closure Type: Open, no seal or shield. Number Of Rows: 1. Dynamic Load Rating (Cr): 16.9 kN (16,900 N). Static Load Rating (C0r): 15.0 kN (15,000 N). Limiting Speed: 31,100 rpm oil/air; 18,600 rpm grease. Lubricant: Oil/air or grease. Maximum Operating Temperature: 120 °C. Item Weight: 0.129 kg (0.284 lb). Radial runout of the assembled inner ring, Kia: 4 µm. Radial runout of the assembled outer ring, Kea: 5 µm. Axial Preload, light class, as a paired set: 100 N. Axial Stiffness, light class, as a paired set: 51 N/µm. Bearing Material: Carbon chrome bearing steel to BS970 534A99/535A99 or SAE 52100.

Dimensions and mounting:

Inner ring abutment diameter d1: 55 mm minimum. Outer ring abutment diameter D1: 67 mm maximum. Outer ring seat diameter D2: 69.5 mm maximum. Fillet radius r: 0.6 mm minimum. Fillet radius r1: 0.3 mm minimum. Effective Load Centre a: 14.2 mm. Internal free volume: 6.7 cm³. PCD of lubrication jets: 57.9 mm. Bore Type: Straight.

Compatibility and replacement:

RHP B7910X2TAULEP7K5 is the RHP B-series carton form, where X2 is 15° and EP7 the RHP class equal to ABEC 7. NSK 7910CTRSULP4 and Fafnir 2MM9310WI CR are the same bearing in the NSK and Fafnir schemes. RHP 7910A5 shares the 50 x 72 x 12 mm envelope at a 25° contact angle, with its own stiffness and speed figures.

Frequently asked questions:

What size is the RHP 7910CTSULP4?

Bore 50 mm, outside diameter 72 mm, width 12 mm, ISO base number 71910.

What contact angle and precision class does it have?

Contact angle 15°, precision class ABEC 7 / P4.

What are its load ratings and speeds?

Dynamic load rating 16.9 kN, static load rating 15.0 kN; limiting speed 31,100 rpm oil/air and 18,600 rpm grease.