Barden103HDMAngular Contact Ball Bearing — 17 mm ID, 35 mm OD, 10 mm Width, 15° Contact Angle, ABEC 7 / P4S, Medium Preload

Product Description

What this part is

The Barden 103HDM is a super precision angular contact ball bearing from the Barden 100 metric spindle series, supplied as a universal duplex set with medium preload. It is a non-separable design with a relieved outer ring. Barden no longer publishes a data page for 103H; the figures below are successor 103HC data from the Schaeffler Barden machine tool catalogue.

Decoding the designation

103 — 100 series metric spindle bearing, bore code 03 = 17 mm bore.

H — one-piece reinforced phenolic halo cage, outer ring guided.

D — universal mounting: inner and outer rings of equal width, so the set installs back-to-back (DB), face-to-face (DF) or tandem (DT).

M — medium preload; no numerals follow, so Barden standard medium preload applies.

What these specs mean in practice

Bore Diameter: 17 mm. Outside Diameter: 35 mm. Overall Width: 10 mm per bearing. This is the ISO 7003 envelope.

Contact Angle: 15° (successor 103HC data). The low angle favors speed and radial stiffness.

Dynamic load rating: 8,650 N (successor 103HC data). Static load rating: 4,900 N (successor 103HC data). These ratings set fatigue life and allowable static load per bearing.

Limiting Speed: 43,000 rpm on grease; 63,000 rpm on oil (successor 103HC data). Oil lubrication raises the usable speed ceiling.

Preload: Medium (M), 146 N standard preload (successor 103HC data). Medium preload adds stiffness over light preload.

Cage Material: Phenolic. The one-piece halo cage is light and runs quietly at speed.

Precision Class: ABEC 7 / P4S (successor 103HC data). P4S means ABEC 7 dimensional tolerances with ABEC 9 running accuracy.

Bearing Material: 100Cr6 (SAE 52100) chrome steel rings, steel balls. This is standard through-hardened bearing steel.

Item weight: 0.04 kg per bearing (successor 103HC data). The set of two weighs about 0.08 kg.

Mounting data

Envelope 17 x 35 x 10 mm per bearing; the set of two occupies 20 mm of axial length on the shaft.

Quantity and configuration

One set of 2 bearings, universal duplex (D), matched for DB, DF or DT mounting with medium preload.

Interchange guidance

Barden 103HC is the current successor design. Same envelope and 15° angle: FAG B7003C.T.P4S (listed by Barden as the FAG equivalent), SKF 7003 CD/P4A, NSK 7003C P4, Timken Fafnir 2MM9103WI.