FAGB7016CBTPAP4DULSuper-Precision Angular Contact Ball Bearing Set – 80 mm ID, 125 mm OD, 22 mm Width Each, Open, 15° Contact Angle, ABEC 7, Universally Matchable Light Preload, 2 Pcs

Product Description

What this part is

A FAG B7016CB.TPA.P4.DUL super-precision angular contact ball bearing set in the 80 x 125 x 22 mm envelope, ISO base number 7016. Two single-row bearings, 15° contact angle, universally matchable and ground for light preload, with one-piece laminated fabric cages.

Decoding the designation

B identifies the FAG super-precision spindle bearing range; it is not the 40° B-series used on standard angular contact bearings. 7016 is the ISO 70 light series at 80 mm bore. C is the 15° contact angle. TPA is a one-piece machined cage in fabric-base laminate, a phenolic material. P4 is the super-precision tolerance class, equivalent to ABEC 7. DUL is a duplex universally matchable set ground for light preload, so the designation covers two bearings. The additional B carried between C and TPA on this carton is not a published Schaeffler design code, and no specification is read from it.

What these specs mean in practice

Each bearing carries radial load and axial load in one direction, so a pair is used to locate a spindle in both directions. The 15° angle is the high-speed setting: less thrust capacity than a 25° bearing on the same envelope, but a higher limiting speed and less heat. Light preload removes internal play without loading the ball complement hard, which keeps friction torque and running temperature low. Preload force is 354 N per bearing, with axial rigidity of 86 N/µm. A laminated fabric cage is dimensionally stable, runs quietly, and holds oil within the cage body. Basic dynamic load rating is 64.0 kN per bearing and basic static load rating 41.0 kN per bearing. Limiting speed is 11,000 rpm on grease and 17,000 rpm on oil. Operating temperature range is −30 °C to 100 °C.

Quantity and configuration

Sale unit is two pieces, supplied as a matched light-preload set. Each bearing is 22 mm wide, so the pair stacks to 44 mm of total width. Universal matching means the ring faces are ground so that any two bearings from this range come up to the specified light preload when clamped solidly, in a back-to-back, face-to-face or tandem stack, and a single bearing also runs on its own.

Fitting notes

Shaft shoulder diameter is 88 mm and outer ring shoulder diameter 117 mm. Maximum recess radius is 1 mm at the shaft and 0.6 mm at the outer ring, against a minimum ring chamfer of 1.1 mm. Distance between the apexes of the pressure cones is 24.7 mm per bearing. The inner ring seats on a ground shaft with a light interference fit and the outer ring takes a close fit in the housing, each clamped against a face square to the axis. Preload is realised only once both inner rings and both outer rings are drawn solidly against their shoulders.

Interchange guidance

Same-specification equivalents on this envelope at 15°, super-precision, universally matchable light preload include SKF 7016 CD/P4ADGA, NSK 7016CTYDULP4 and Fafnir 2MM9116WI-CR-DUL. The 25° forms of the same envelope, including FAG B7016E.T.P4S.UL and SKF 7016 ACD/P4A, are related sizes rather than interchanges. Medium and heavy preload variants of the same number are separate parts.