BardenAngular Contact Ball Bearing — 95 mm ID, 145 mm OD, 24 mm Width, 15° Contact Angle, ABEC 7 / P4S, Medium Preload

Product Description

What this part is

The Barden 119HDM is a matched pair of super precision angular contact ball bearings from the Barden metric H spindle series. Each bearing measures 95 mm bore, 145 mm outside diameter and 24 mm width, with a 15° contact angle and ABEC 7 / P4S precision. The design is non-separable with a relieved outer ring and a one-piece phenolic halo cage, built for machine tool and grinding spindles.

Decoding the designation

119 — Barden base number in the 100 series; the last two digits (19) are the bore code, 95 mm bore.

H — Metric series spindle/turbine angular contact bearing, non-separable, relieved outer ring, with a reinforced one-piece phenolic halo cage.

D — Universal mounting: inner and outer rings of the same width, so the bearings install back-to-back (DB), face-to-face (DF) or tandem (DT).

M — Medium preload. No numerals follow, which in Barden nomenclature denotes standard preload, 1,285 N for this size.

What these specs mean in practice

Bore Diameter: 95 mm. Outside Diameter: 145 mm. Overall Width: 24 mm per bearing. The envelope matches ISO 7019C-size bearings, so it fits shafts and housings machined for that size.

Contact Angle: 15°. The shallow angle favors high speed and radial stiffness over maximum thrust capacity.

Dynamic load rating: 78,085 N. Static load rating: 87,134 N. These per-bearing figures set fatigue life and the limit for permanent raceway deformation.

Limiting Speed: 10,000 rpm with grease; 15,000 rpm with oil. Oil lubrication raises the speed ceiling for high-speed spindles.

Preload: Medium (M), 1,285 N standard preload. Barden’s range for this size is Light 530 N, Medium 1,285 N, Heavy 2,575 N; medium preload balances spindle stiffness against heat generation.

Cage Material: Phenolic, one-piece halo, outer ring guided. The lightweight cage runs cool at spindle speeds.

Precision Class: ABEC 7 / P4S. Barden P4S means ABEC 7 nominal tolerances with ABEC 9 running accuracy, for low runout at the spindle nose.

Bearing Material: 100Cr6 (SAE 52100) chrome steel rings with steel balls. This is the standard through-hardened bearing steel for precision spindles.

Mounting data

Maximum fillet radius r1: 0.76 mm. Maximum fillet radius r2 on the non-thrust side: 0.30 mm.

Quantity and configuration

This listing is a universal duplex set of 2 bearings (D). Both bearings carry matched ring widths and the medium standard preload, and the pair mounts DB, DF or DT.

Interchange guidance

Barden lists the FAG B7019C.T.P4S as the FAG equivalent of its H series. Closest first, 15° super precision types in the 95 x 145 x 24 mm size: FAG B7019C.T.P4S (single bearing, phenolic cage, P4S), Timken Fafnir 2MM9119WI (matched duplex type), SKF 7019 CD/P4A (P4A, light preload universal) and NSK 7019C P4 (P4, single bearing). Match preload class and cage when substituting.