RHP7005ETDUMP4Super Precision Angular Contact Ball Bearing – 25 mm ID, 47 mm OD, 12 mm Width, Open, 25° Contact Angle, Medium Preload

Product Description

What this part is

RHP 7005ETDUMP4 super precision single-row angular contact ball bearing. Bore: 25 mm. Outside Diameter: 47 mm. Overall Width: 12 mm. Series: 7000, ISO dimension series 10. Number Of Rows: 1. Rolling Elements: Balls. Bore Type: Straight. Closure Type: Open.

Decoding the designation

Contact Angle: 25°. Cage Material: Laminated phenolic resin. Cage Type: Machined, outer-ring guided. Preload: Medium. Mounting Arrangement: Duplex universal. Precision Class: RHP P4, ISO Class 4, ABEC 7, BS292 EP7. The carton carries the same bearing in three schemes: RHP 7005-E-T-DUM-P4, RHP B-series B7005 X3 TADUM EP7, and Fafnir 3MM9105WI-DUM. Searchable forms: 7005ETDUMP4, 7005 E T DUM P4, 7005-E-T-DUM-P4, 7005E.

What these specs mean in practice

Dynamic Load Rating: 11.1 kN, 2495 lbf. Static Load Rating: 7.10 kN, 1596 lbf. Limiting Speed, oil/air lubrication: 42,000 r/min. Limiting Speed, grease lubrication: 26,000 r/min. A 25° contact angle carries more thrust and less speed than a 15° execution on the same envelope, and the medium preload raises stiffness and lowers the speed ceiling further than a light preload would. Effective Load Centre: 14.4 mm. Bearing Material: Carbon chrome bearing steel, SAE 52100, through hardened and heat treated. Maximum Operating Temperature: 120 °C. Minimum Operating Temperature: -30 °C. Internal Clearance: N/A — the medium preload is set at manufacture, so the bearing is preloaded rather than clearance-graded. Lubricant: grease or oil. Item Weight: 0.079 kg, 0.17 lbs.

Quantity and configuration

Unit Quantity: 1 Pc. One piece from a factory duplex medium-preload pair. Universal face control means the inner and outer rings are ground to the same width, so two of these mount back-to-back or face-to-face at the same medium preload, and tandem-mounted bearings share load equally. Axial Preload, duplex medium pair: 440 N. Axial Stiffness, duplex medium pair: 99 N/µm.

Fitting notes

Abutment Diameter, shaft, d1 min: 30 mm. Abutment Diameter, housing, D1 max: 42 mm. Housing Abutment D2 max: 44.5 mm. Chamfer r min: 0.6 mm. Chamfer r1 min: 0.3 mm. Internal Free Volume: 3.8 cm³. Pitch Circle Diameter of Lubrication Jets: 32.9 mm. Running Accuracy, radial and axial runout: P4. The high point of radial runout is marked by a burnished spot on the inner ring face and by a V line on the outer ring diameter, which also gives the direction of the contact angle.

Interchange guidance

Cross-Reference: Fafnir 3MM9105WI-DUM. Cross-Reference: SKF 7005 CE/P4ADGB. Harmonization Code: 8482.10.50.