RHP7205CTDULP3Angular Contact Ball Bearing – 25 mm ID, 52 mm OD, 15 mm Width, Open, 15°, Light preload.

Product Description

What this part is

RHP 7205CTDULP3 super precision angular contact ball bearing, ISO dimension series 02, supplied as a matched duplex pair. Bore: 25 mm. Outside Diameter: 52 mm. Width: 15 mm. Contact Angle: 15°. Number of Rows: 1 per bearing. Rolling Elements: Steel balls. Bearing Material: Carbon chrome bearing steel to SAE 52100. Closure Type: Open.

Decoding the designation

Series: 7200, ISO dimension series 02. Base Number: 7205. Contact Angle: 15°. Cage Material: Laminated phenolic resin. Cage Type: Outer-ring guided. Grouping: DU, a paired unit. Preload: Light. Precision Grade: P3, which combines dimensional accuracy to P4 with running accuracy to P2. Searchable forms of the number include 7205CTDULP3, 7205-C-T-DUL-P3, 7205 C T DUL P3, 7205X2TADULEP6 and 2M205WI CR DUL.

Load ratings and speed

Dynamic Load Rating: 16.6 kN (16 600 N) per bearing. Static Load Rating: 10.2 kN (10 200 N) per bearing. Limiting Speed, oil or oil-air lubrication: 44,900 rpm. Limiting Speed, grease lubrication: 27,800 rpm. Both speed figures are single-bearing values; a back-to-back pair at light preload runs at 0.80 of the tabulated speed, and a face-to-face pair at half of that again.

What these specs mean in practice

A 15° contact angle favours rotational speed and radial stiffness, while a 25° execution on the same envelope trades speed for thrust capacity. Axial Preload: 78 N for the pair. Axial Stiffness: 36 N per micrometre for the pair. Effective Load Centre: 12.7 mm. Lubricant: grease or oil. The laminated phenolic cage carries a maximum recommended operating temperature of 120 °C.

Mounting data

Inner Ring Abutment Diameter: 31 mm minimum. Outer Ring Abutment Diameter: 46 mm maximum. Housing Abutment Diameter: 47 mm maximum. Fillet Radius r min: 1.0 mm. Fillet Radius r1 min: 0.6 mm. Lubrication Jet Pitch Circle Diameter dT: 35.5 mm. Internal Volume: 6.2 cm3. Mass: 0.128 kg per bearing.

Quantity and configuration

Unit Quantity: 2 Pcs. Total Width: 30 mm for the pair. Universal face control means the pair mounts back-to-back or face-to-face at the same preload, and shares load equally when mounted in tandem.

Interchange guidance

Cross-Reference: FAG B7205-C-T-P2S-DUL. The RHP B-series form of this bearing is 7205X2TADULEP6 and the Fafnir cross is 2M205WI CR DUL. A 7205A5 shares the 25 x 52 x 15 mm envelope at a 25° contact angle, making it a related size rather than a direct substitution.