RHP7004ETDULP4Super Precision Angular Contact Ball Bearing – Straight Bore, 20 mm ID, 42 mm OD, 12 mm Width, Open, 25° Contact Angle, Light Preload, ABEC 7 / P4, Matched Pair

Product Description

What this part is:

RHP 7004ETDULP4 is a super-precision single-row angular contact ball bearing supplied as a matched duplex pair, 20 mm bore by 42 mm outside diameter by 12 mm width, 25° contact angle, light preload. Unit Quantity: 2 Pcs.

Decoding the designation:

7004 — single-row angular contact, ISO dimension series 10, bore code 04 for a 20 mm bore.

E — 25° contact angle.

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

DU — universally ground paired unit.

L — light preload.

P4 — precision grade, equivalent to ABEC 7 and ISO Class 4.

Specifications:

Bore Diameter: 20 mm. Outside Diameter: 42 mm. Width: 12 mm. Contact Angle: 25°. Precision Class: P4, equivalent to ABEC 7 and ISO Class 4. Dynamic Load Rating: 10.6 kN. Static Load Rating: 6.25 kN. Cage Material: Laminated phenolic resin. Cage Type: Outer ring guided. Bore Type: Straight. Closure Type: Open. Rolling Elements: Steel balls. Number Of Rows: 1. Series: 7000, ISO dimension series 10. Limiting Speed: 47,400 r/min oil-air; 29,300 r/min grease. Preload: Light, 78 N axial. Axial Stiffness: 68 N/µm. Item Weight: 0.069 kg (0.15 lbs) each. Unit Quantity: 2 Pcs.

Dimensions and mounting:

Shaft abutment diameter d1: 25 mm minimum. Housing abutment diameter D1: 37 mm maximum. Outer ring abutment D2: 39.5 mm maximum. Chamfer r: 0.6 mm minimum. Chamfer r1: 0.3 mm minimum. Effective Load Centre a: 13.2 mm. Internal volume: 3.1 cm³. Bore deviation to P4: −5 µm. Radial runout of the assembled inner ring: 4 µm. Universal face control: the pair mounts back-to-back, face-to-face or in tandem at the same preload value. Back-to-back at light preload the speed factor is 0.80 of the single-bearing figure.

Compatibility and replacement:

SKF 7004 ACD/P4ADGA — 25° execution, same envelope and precision. FAG B7004-E-T-P4S-DUL — 25° execution, same envelope and precision. NSK 7004A5TRDULP4 — 25° execution, same envelope and precision. RHP 7004C — 15° contact angle in the same 20 x 42 x 12 mm envelope, oil-air limiting speed 53,600 r/min. Searchable variants: 7004E, 7004-E-T-DUL-P4, 7004 ET DUL P4, B7004X3TADULEP7, 3MM9104WI DUL.

Frequently asked questions:

What is the contact angle of the RHP 7004ETDULP4?

25°, from the E in the designation.

What is the limiting speed of the 7004ETDULP4?

47,400 r/min on oil-air lubrication and 29,300 r/min on grease, for a single bearing.

How many bearings are in the set?

Two bearings, a matched duplex pair at light preload.