RHP7224CTDULP4Angular Contact Ball Bearing – Straight Bore, 120 mm ID, 215 mm OD, 40 mm Width, Open, 15° Contact Angle, Light Preload, Matched Duplex Pair

Product Description

What this part is:

RHP 7224CTDULP4 super-precision single-row angular contact ball bearing, supplied as a matched universal duplex pair. Bore Diameter: 120 mm. Outside Diameter: 215 mm. Width: 40 mm. Contact Angle: 15°. Light preload. Open. Unit Quantity: 2 Pcs. Bearing steel is carbon chrome to BS970 534A99 / 535A99 (equivalent to SAE 52100), through hardened and stabilised.

Decoding the designation:

7224 — ISO dimension series 02 (72xx); bore code 24 = 120 mm bore.

C — 15° contact angle.

T — laminated phenolic resin cage, outer-ring guided.

DU — universal duplex pair with face control: mounts back-to-back, face-to-face or in tandem.

L — light preload.

P4 — precision class P4 (ISO 492 Class 4, ABEC 7, BS292 EP7).

Specifications:

Dynamic Load Rating: 199,000 N. Static Load Rating: 192,000 N. Limiting Speed: 10,100 rpm oil-air; 6,400 rpm grease. A light-preload back-to-back pair carries a speed factor of 0.80; face-to-face mounting reduces it by a further 50%. Axial Preload: 1,400 N as a light-preload pair. Axial Stiffness: 170 N per micron. Effective Load Centre: 42.4 mm. Cage Material: Laminated phenolic resin, outer-ring guided. Precision Class: ABEC 7 / P4. Maximum Operating Temperature: 120 °C. Item Weight: 5.426 kg (11.96 lb) per bearing. Series: 7200.

Dimensions and mounting:

Shaft abutment diameter d1: 132 mm minimum. Housing abutment diameter D1: 203 mm maximum. Outer ring abutment diameter D2: 208 mm maximum. Bearing fillet radius r: 2.5 mm minimum. Inner fillet radius r1: 1.5 mm minimum. Internal Volume: 225.7 cubic centimetres. Lubrication jet pitch circle diameter: 156.3 mm. Deviation of mean bore diameter: 0 to minus 6 microns. Deviation of mean outside diameter: 0 to minus 10 microns. Radial runout of assembled inner ring: 5 microns maximum; assembled outer ring: 10 microns maximum.

Compatibility and replacement:

Cross-references for the 15° light-preload universal duplex execution: SKF 7224 CD/P4ADGA and NSK 7224CTRDULP4. The number is also written 7224-C-T-DUL-P4, B-7224-X2-TA-DUL-EP7, 7224X2 and 7224CTRDULP4.

Frequently asked questions:

What are the load ratings and limiting speeds?

Dynamic 199,000 N and static 192,000 N, with a limiting speed of 10,100 rpm oil-air and 6,400 rpm grease, per the RHP catalogue.

What contact angle and preload does the 7224CTDULP4 have?

15° contact angle and light preload, 1,400 N axial for the pair.

How many bearings are in a unit?

2 Pcs, a matched universal duplex pair.