RHPSuper-Precision Angular Contact Ball Bearing Duplex Pair – 15 mm Bore x 32 mm OD x 9 mm Wide, 15° Contact Angle, Phenolic Cage, ABEC 7, Light Preload

Product Description

What this part is

RHP 7002CTDULP4V super-precision angular contact ball bearings, ISO 7002 size, supplied as a matched duplex pair. Bore: 15 mm. Outside Diameter: 32 mm. Width: 9 mm each. Total Width: 18 mm stacked. Bearing Type: Single-row angular contact ball bearing, universally ground duplex pair. Number of Rows: 1 per bearing. Rolling Elements: Ball. Contact Angle: 15°. Closure Type: Open. Cage Material: Phenolic. Cage Type: Machined. Precision Class: P4, equivalent to ABEC 7. Preload: Light, 29 N. Dynamic Load Rating: 6.25 kN per bearing. Static Load Rating: 3.4 kN per bearing. Limiting Speed: 44,200 rpm on grease, 71,400 rpm on oil or air. Item Weight: 0.031 kg per bearing.

Decoding the designation

7002 — the ISO 7002 size, 15 x 32 x 9 mm, in the 70 light dimension series.

C — 15° contact angle.

T — machined phenolic cage.

DU — duplex universal: both bearings are face-ground so the pair mounts back-to-back, face-to-face or in tandem and reaches its preload without shims.

L — light preload class, 29 N across the pair.

P4 — ISO tolerance class 4, equivalent to ABEC 7.

What these specs mean in practice

Contact Angle: 15°. The shallowest of the standard spindle angles, which is what carries the 71,400 rpm oil rating on a 15 mm bore. It favours speed and radial stiffness over thrust capacity.

Preload: Light, 29 N. A light preload takes the internal play out of the pair and fixes the ball contact geometry, giving repeatable axial position and predictable stiffness without adding much heat. The catalogue ladder on this size runs 14 N extra light, 29 N light, 69 N medium and 150 N heavy.

Cage Material: Phenolic. Fabric-reinforced phenolic is light, holds oil in its own structure and runs quiet at the speeds this size reaches.

Precision Class: P4 (ABEC 7). Bore, outside diameter, radial runout and face runout are held to the super-precision limits that a grinding or high-frequency spindle needs.

Dynamic Load Rating: 6.25 kN. Static Load Rating: 3.4 kN. Both figures are per bearing; a preloaded pair shares an external load between the two rows according to the mounting arrangement.

Mounting data

Effective Load Centre (a): 7.6 mm at 15°. Shaft Abutment Diameter (d1 min): 17.5 mm. Housing Abutment Diameter (D1 max): 29.5 mm. Outer Ring Face Abutment (D2 max): 30.8 mm. Bearing Chamfer (r min): 0.3 mm. Inner Chamfer (r1 min): 0.15 mm. Internal Free Volume: 1.4 cm³ per bearing.

Quantity and configuration

Unit Quantity: 2 Pcs. A matched duplex pair, ground together and supplied as one set.

Cross-reference guidance

The 15 x 32 x 9 mm envelope is ISO standard. The RHP B-series part is B7002X2TADULEP7 — X2 is the same 15° angle and EP7 the same ABEC 7 class. NSK uses 7002CTRDULP4 and Fafnir uses 2MM9102WI-DUL, where 2MM also denotes 15°. A 7002E or 7002A5 is 25° on the same seats, carrying more thrust at a lower speed, so it is not a direct swap.

Searchable variants of the part number: 7002CTDULP4V, 7002-C-T-DUL-P4V, 7002 C T DUL P4V, 7002CTDULP4, 7002CTDUL, 7002C.