FAGB7007CAP4DULSuper Precision Angular Contact Spindle Bearing Pair 35x62x14 mm 15° ABEC 7 Light Preload

Product Description

What this part is

A FAG B7007-C-A-P4-DUL matched duplex pair of super-precision angular contact spindle bearings. Each bearing has a 35 mm bore, a 62 mm outside diameter and a 14 mm width, giving a 28 mm stack height for the pair.

Decoding the designation

B7 — FAG super-precision spindle bearing series007 — 35 mm bore, 62 mm OD, 14 mm widthC — 15° contact angle in the FAG B7 schemeA — FAG internal design variantP4 — precision class 4, equivalent to ABEC 7DUL — duplex universally ground, light preload

What these specs mean in practice

A 15° contact angle carries load close to the radial plane, which keeps centrifugal ball loading low and lets the bearing run fast – the reason this is the default angle for high-speed spindles. Light preload keeps frictional heat and power draw down, so the spindle runs cooler and holds accuracy over long cycles, at the cost of some axial stiffness compared with a medium or heavy preload set. Universal grinding means the faces are ground so any two bearings of this designation can be paired back-to-back, face-to-face or in tandem, with the correct preload appearing once the rings are clamped flush.

Published specifications

Bore: 35 mm (1.3780 in)Outside diameter: 62 mm (2.4409 in)Width per bearing: 14 mm (0.5512 in)Contact angle: 15°Preload: light (L)Precision class: P4, ABEC 7Number of rows: 1 per bearingRolling elements: steel ballsClosure: openArrangement: duplex universally ground pair

Quantity and configuration

Supplied as 2 Pcs, a matched duplex pair.

Fitting notes

Duplex pairs mount with the ground faces butted and the rings clamped so the built-in offset develops the light preload. Orientation sets the behaviour: back-to-back or face-to-face takes thrust in both directions, tandem takes thrust in one direction at doubled capacity. Cleanliness during assembly governs bearing life at ABEC 7.

Interchange guidance

Genuine equivalents are 15° ABEC 7 universally ground light-preload pairs in the same 35x62x14 mm envelope: Fafnir 2MM9107WI-DUL, NSK 7007CTRDULP4, SKF 7007 CD/P4ADGA in light preload and RHP 7007CTDULP4. The 25° version of this size, coded E by FAG and A5 by NSK, is a related size rather than an interchange, and medium or heavy preload builds change spindle stiffness and running temperature.