RHP7013CTDULP4Matched Duplex Pair Angular Contact Ball Bearings 65x100x18 mm 15° Light Preload ABEC 7

Product Description

What this part is

RHP 7013-C-T-DUL-P4, a matched duplex pair of single-row angular contact ball bearings. Bore: 65 mm (2.5591 in). Outside Diameter: 100 mm (3.9370 in). Overall Width: 18 mm (0.7087 in) per bearing. Total Width: 36 mm (1.4173 in) for the mounted pair. Series: 7013, ISO dimension series 10. Rolling Elements: steel balls, one row per bearing. Closure Type: open.

Decoding the designation

Contact Angle: 15°, from the RHP angle letter C. Cage Material: laminated phenolic, from the T. Arrangement: duplex, from the DU. Preload: light, from the L. Precision Class: P4, ABEC 7, RHP grade EP7. Base Number: 7013, bore code 13 giving a 65 mm bore. Three schemes on the carton agree on the angle: the RHP C, the B-series B7013X2TADULEP7, and the Fafnir 2MM9113WI-CR-DUL.

Published specifications

Dynamic Load Rating: 37.0 kN (8,318 lbf) per bearing. Static Load Rating: 34.5 kN (7,756 lbf) per bearing. Limiting Speed: 21,600 r/min oil/air and 13,300 r/min grease for a single bearing; a light-preload back-to-back pair runs at 0.80 of those figures. Axial Preload: 250 N. Axial Stiffness: 82 N/µm for the pair. Effective Load Centre: 20.0 mm. Item Weight: 1.92 lb (0.870 kg) for the pair. Maximum Operating Temperature: 120 °C. Bore Type: straight. Internal Clearance: N/A, the set is preload-adjusted.

Mounting dimensions

Shaft Abutment Diameter d1: 72 mm minimum. Housing Abutment Diameter D1: 93 mm maximum. Outer Ring Abutment Diameter D2: 95 mm maximum. Bearing Fillet Radius r: 1.1 mm minimum. Secondary Fillet Radius r1: 0.6 mm minimum. Internal Volume: 19.0 cm³ per bearing. Pitch Circle Diameter Of Lubrication Jets: 77.5 mm.

What these specs mean in practice

A 15° contact angle favours speed and radial stiffness over thrust capacity, which is why it is the usual machine-tool spindle angle. As a duplex pair the set locates the shaft in both directions under a built-in light preload of 250 N, giving 82 N/µm of axial stiffness while keeping running torque and heat generation low, so the pair suits the higher-speed end of a spindle duty range. The rings are universally faced, so the pair can be stacked back-to-back, face-to-face or in tandem at the same preload value. ABEC 7 controls bore, outside diameter and running accuracy to super-precision limits. The laminated phenolic cage is outer-ring guided and rated to 120 °C.

Quantity and configuration

Unit Quantity: 2 Pcs, one matched duplex pair. Mounting Arrangement: universally faced, DB, DF or DT.

Interchange guidance

Same-spec 15° light-preload duplex equivalents in other schemes: RHP B-series B7013X2TADULEP7, Fafnir 2MM9113WI-CR-DUL, NSK 7013CTRDULP4, FAG B7013-C-T-P4S-UL. The medium-preload DUM and heavy-preload DUH forms, the 25° 7013-A5 form, and single SU bearings share the 65 x 100 x 18 mm envelope and are related sizes.