MRC7314DUAngular Contact Ball Bearing – 70 mm Bore x 150 mm OD x 35 mm Wide, 29°, Universally Ground, Open

Product Description

What this part is

MRC 7314DU single-row angular contact ball bearing, 70 mm bore, 150 mm outside diameter, 35 mm wide. Bore Diameter: 70 mm. Outside Diameter: 150 mm. Overall Width: 35 mm. Contact Angle: 29°. Rolling Elements: Ball. Number Of Rows: 1. Bore Type: Straight. Closure Type: Open. Bearing Material: Chrome steel. Series: MRC 7300 heavy. Unit Quantity: 1 Pc.

Decoding the designation

7314 — MRC’s 7300 heavy angular contact series at bore code 14, giving a 70 mm bore in a 150 mm housing.

No type letter — the plain MRC 7000-series execution, which carries a 29° contact angle. An R in that position would make it 15° with a counterbored outer ring, and a P would make it 40°.

DU — universally ground, supplied as one half of a matchable duplex pair. The ring faces are ground so that any two bearings of the designation stack without shims and come up to their intended preload on assembly.

What these specs mean in practice

Contact Angle: 29°. A middling angle: more axial stiffness and thrust capacity than a 15° spindle bearing, more speed headroom and less thrust than a 40°. It suits a shaft carrying substantial combined radial and one-way axial load.

Universally ground faces mean the bearing can be set back-to-back for maximum moment stiffness and a wide effective bearing spread, face-to-face where the shaft and housing expand differently, or in tandem where thrust runs one way and needs sharing across two rows.

The 7300 heavy section puts more material and a larger ball complement in the same bore than a 7200 medium bearing does, which is where its extra capacity comes from.

Mounting data

Bore Type: Straight, 70 mm shaft seat. Housing bore 150 mm. Overall Width: 35 mm per bearing, so a duplex pair of this designation stacks to 70 mm across the set.

Quantity and configuration

Unit Quantity: 1 Pc. One universally ground bearing, ready to pair with another of the same designation.

Interchange guidance

The 7314 boundary envelope is an ISO standard at 70 x 150 x 35 mm, so every number below drops into the same housing bore and shaft seat. Contact angle is the variable: the makers’ standard executions on this size run at 30° or 40° against this bearing’s 29°, and each cross-reference states which. Searchable variants of the number: 7314DU, 7314-DU, 7314 DU, 7314D.