BardenSuper Precision Angular Contact Ball Bearing 80x125x22 mm, 15 Degree Contact Angle, One-Piece Machined Porous Phenolic Cage, Universal Duplex Pair Light Preload

Product Description

What this part is

A Barden super-precision angular contact ball bearing, 80 mm bore × 125 mm outside diameter × 22 mm width, 15° contact angle, ground as a universal duplex pair at light preload. Barden built its reputation on instrument and high-speed spindle bearings and is now part of Schaeffler, alongside FAG and INA.

Decoding the designation

116 is Barden’s own series and size code, resolving to an 80 mm bore in a 125 mm outside diameter, 22 mm wide envelope at a 15° contact angle. H is an angular contact design with a relieved outer ring, non-separable, fitted with a one-piece machined porous phenolic cage, Barden’s Synthane XX. D is a universal duplex pair: faces are ground so the two bearings can be mounted back-to-back, face-to-face or in tandem and the specified preload results from simply clamping them together. L is light preload.

Why the porous phenolic cage matters

A porous phenolic cage is vacuum-impregnated with oil, so the cage itself acts as a lubricant reservoir and feeds the ball tracks slowly over a long period. That gives far greater tolerance of marginal or intermittent lubrication than a steel or brass cage, quieter running because the cage damps ball-passage excitation, and very high achievable dN values. It is the reason Barden H-type bearings turn up in instrument spindles, gyros, and machine tool spindles where relubrication is difficult. Phenolic is a temperature-limited material and the impregnating oil bakes out if the bearing is run hot.

What these specs mean in practice

15° biases the bearing toward radial load and speed rather than thrust: cooler running at a given rpm, better radial running accuracy, higher limiting speed, and less axial stiffness than a 25° or 30° bearing. Light preload continues in the same direction, giving the lowest heat generation and highest speed capability of the preload classes at the cost of rigidity. Preload is ground into the faces and cannot be altered at assembly. Contact Angle: 15°. Cage Material: Porous phenolic (Synthane XX), oil-impregnated. Dynamic Load Rating: 47.5 kN. Static Load Rating: 40.5 kN. Limiting Speed: 13,300 rpm. Mass: 1.85 lbs.

Quantity and configuration

The DL suffix describes a matched universal duplex pair, ground and marked as a set for back-to-back, face-to-face or tandem mounting.

Interchange guidance

The ISO envelope equivalent is 7016C, confirmed against Barden’s own catalogue listing of B7016C.T.P4S at 80 x 125 x 22. In world-number format the same envelope and angle is 2MM9116WI in the Fafnir/Timken scheme and 7016C-T-P4S generally. This is envelope and angle equivalence only: a plain 7016C is not a drop-in for a universal light-preload pair with a porous phenolic cage, since substituting one loses both the matched preload and the cage’s lubrication reservoir. Barden bearings are now supplied through Schaeffler.