FAGB7013CTPAP4K5ULSuper-Precision Angular Contact Ball Bearing – 65 mm ID, 100 mm OD, 18 mm Width, Open, 15° Contact Angle, Universal Light Preload, P4S

Product Description

What this part is

An FAG B7013-C-TPA-P4S-UL super-precision angular contact ball bearing. Bore 65 mm, outside diameter 100 mm, width 18 mm, open on both faces, a single row of balls in a phenolic laminate cage, ground to P4S accuracy for universal matching at light preload.

Decoding the designation

B7013 is the FAG super-precision spindle bearing series in the ISO 70 light dimension series, bore code 13 giving 65 mm. In the FAG scheme C is a 15° contact angle. TPA is the fabric-base laminate cage — textile laminated phenolic. P4S is the super-precision accuracy grade, corresponding to ABEC 7 to 9. UL is the universal execution, ground so that any two bearings from the family mount back-to-back, face-to-face or in tandem and reach light preload without shims.

What these specs mean in practice

A 15° contact angle is the high-speed, low-thrust end of the angular contact range: the shallow angle keeps ball centrifugal and gyroscopic effects low, which is why this execution carries a limiting speed of about 18000 rpm in this size while a 25° or 40° bearing of the same envelope trades speed away for axial capacity. P4S accuracy holds bore, outside diameter and running runout to super-precision limits, which is what keeps a tool concentric at those speeds. A single row takes thrust in one direction, so axial location in both directions comes from pairing.

Cage and temperature

The phenolic laminate cage is machined, light, oil-retaining and outer-land guided in service, which suits high speed and oil-mist or oil-air lubrication. The record data puts continuous service between –30 °C and 100 °C.

Quantity and configuration

Single bearing, one row, 1 Pc. Preload is a property of a mounted pair, so a single UL bearing supplies no preload on its own.

Interchange guidance

The same 65 x 100 x 18 mm super-precision envelope at 15° is covered by SKF 7013 CD/P4A, NSK 7013CTRSU P4 and NTN 7013CG/GNP4. Contact angle, cage material and preload class are all part of the identity, so a B7013-E-T-P4S at 25°, a standard 7013 at P0 or a non-UL bearing is a related size in the same envelope rather than a substitution.