RHP7020ETDUMP4Super Precision Angular Contact Ball Bearing Pair – 100 mm ID, 150 mm OD, 24 mm Width, 25° Contact Angle, Medium Preload, P4

Product Description

What this part is:

RHP 7020ETDUMP4 is a universally ground matched pair of two super-precision single row angular contact ball bearings, 100 x 150 x 24 mm, ISO 70 series (dimension series 10), supplied at medium preload. Unit Quantity: 2 Pcs.

Decoding the designation:

7020 — ISO 70 series, bore code 20, 100 mm bore.

E — RHP legacy code for a 25° contact angle, now written A5.

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

DUM — DU universally ground pair, M medium preload.

P4 — precision grade P4: ABEC 7, RHP EP7, ISO Class 4.

B7020TAUMEP7 — RHP B-series designation carried on the carton; EP7 is the P4 grade.

Specifications:

Bore Diameter: 100 mm. Outside Diameter: 150 mm. Width: 24 mm per bearing. Total Width: 48 mm mounted as a pair. Contact Angle: 25°. Preload: Medium, 1,960 N axial. Axial stiffness: 417 N/µm for the pair at medium preload. Precision Class: ABEC 7 / P4. Radial runout at P4: inner ring 5 µm maximum, outer ring 7 µm maximum. Dynamic Load Rating: 71,000 N per bearing. Static Load Rating: 73,500 N per bearing. Limiting Speed: 7,600 rpm on grease and 11,800 rpm on oil/air for a single bearing. Cage Material: laminated phenolic resin, rated to 120 °C. Rolling Elements: Steel balls. Number Of Rows: 1 per bearing. Seal Type: Open. Bearing Material: through-hardened carbon chrome bearing steel (SAE 52100). Mass: 1.264 kg per bearing.

Dimensions and mounting:

Mounting Arrangement: universal face control, back-to-back, face-to-face or tandem at the same preload value. Effective load centre: 41.1 mm. Shaft shoulder diameter d1: 109 mm maximum. Housing shoulder diameter D1: 141 mm minimum. Outer ring abutment D2: 144 mm maximum. Corner radius r: 1.5 mm minimum. Corner radius r1: 1.0 mm minimum. Internal free volume: 53.4 cm³ per bearing. A back-to-back pair at medium preload runs at 0.60 of the single-bearing limiting speed.

Compatibility and replacement:

Cross-references: SKF 7020 ACD/P4ADGB, FAG B7020-E-T-P4S-DUM, Fafnir 3MM9120WI-CR-DUM, NSK 7020A5TRDUMP4. Related size: 7020CTRDUM, the 15° contact angle version of the same envelope.

Frequently asked questions:

What are the dimensions of the RHP 7020ETDUMP4?

Each bearing is 100 mm bore, 150 mm outside diameter and 24 mm wide. The pair mounted side by side is 48 mm wide.

What contact angle and precision grade does it have?

The E code is the RHP legacy 25° contact angle. The grade is P4, ABEC 7.

How many bearings are supplied and at what preload?

Two bearings, universally ground as a DU pair at medium preload, 1,960 N axial.