MRC7305PSingle-Row Angular Contact Ball Bearing – 25 mm Bore x 62 mm OD x 17 mm Width, 40°, Counterbored Outer Ring

Product Description

What this part is

MRC 7305P single-row angular contact ball bearing, heavy-duty execution with a counterbored outer ring. Bore: 25 mm. Outside Diameter: 62 mm. Overall Width: 17 mm. Contact Angle: 40°. Number Of Rows: 1. Rolling Elements: Balls. Bore Type: Straight. Closure Type: Open both faces. Material: Chrome steel. Unit Quantity: 1 Pc.

Decoding the designation

7300 — MRC’s angular contact medium series. At a 25 mm bore the medium series gives a 62 mm outside diameter and a larger ball complement than the light series on the same shaft.

05 — the bore code. Multiplied by five it gives Bore: 25 mm.

P — heavy-duty execution, Contact Angle: 40°, with the outer ring counterbored on one side. The counterbore is what lets the ball complement be loaded past a low shoulder, and the surviving high shoulder is what carries the thrust.

What these specs mean in practice

Contact Angle: 40° is the steepest angle in the standard angular contact range and it puts the load line close to the axis of thrust. That gives this execution the highest one-direction thrust capacity and the highest axial stiffness of the family, and it trades speed headroom for them. The counterbored outer ring makes the bearing directional: it takes thrust in one direction only and is normally run against a second bearing facing the opposite way, or as one half of a duplex set. Bore: 25 mm. Outside Diameter: 62 mm. Overall Width: 17 mm. Closure Type: Open both faces keeps running torque low and lets the housing supply the lubricant.

Quantity and configuration

Unit Quantity: 1 Pc. One single-row bearing, straight bore, open on both faces.

Fitting notes

The high-shoulder side of the outer ring faces the thrust load, so the bearing is fitted with the counterbore turned away from the direction the axial force is coming from. Mounting force is applied through the ring being fitted and is never transmitted across the balls from one ring to the other. Where two of these run opposed on one shaft, axial position is set by a spacer or by clamping to a measured end play.

Interchange guidance

25 x 62 x 17 mm is the 7305 envelope, so an angular contact bearing of that size will enter the same seat. A substitution has to agree on the 40° contact angle as well: an ISO 7305 B is the 40° execution and is a genuine interchange, while a 7305 at 15° or 25° carries different thrust capacity and stiffness on the same envelope and is a related size.

Searchable variants

7305P, 7305-P, 7305 P, MRC 7305P, MRC 7305 P.