SNR7211CVDUJ74Angular Contact Ball Bearing – Straight Bore, 55 mm ID, 100 mm OD, 21 mm Width, Open, 15° Contact Angle, Light Preload.

Product Description

What this part is

SNR 7211CDUJ74 super-precision angular contact ball bearing, ISO 72 series, 55 x 100 x 21 mm. Brand: SNR. Manufacturer Part Number: 7211CDUJ74. Bearing Type: Angular contact ball bearing. Bore: 55 mm. Outside Diameter: 100 mm. Overall Width: 21 mm. Bore Type: Straight. Number Of Rows: 1. Rolling Elements: Ball. Closure Type: Open.

Decoding the designation

Contact Angle: 15°, carried by the C in 7211C. Preload: Light, carried by the J74 code. Precision Class: ISO P4, equivalent to ABEC 7. Cage Material: Phenolic resin. Series: 7200. Searchable forms of the designation: 7211CDUJ74, 7211CVDUJ74, 7211-C-DU-J74, 7211 C DU J74, 7211C.

What these specs mean in practice

A 15° contact angle favours speed and radial rigidity over thrust capacity, which suits a machine-tool spindle position. Light preload keeps the ball complement in contact under a modest set force, giving repeatable running accuracy with low heat generation. Internal Clearance: N/A — the bearing is set by preload rather than by a running clearance. ISO P4 holds tighter bore, outside diameter and running accuracy than standard class. The 72 series carries a heavier section than the 70 series on the same bore, so it takes more load in the same shaft position. The phenolic cage is light and quiet at speed.

Condition

New old stock, French manufacture, supplied in an opened carton.

Quantity and configuration

Unit Quantity: 2 Pcs. Universally ground rings, matchable so the two bearings set together at the stated preload.

Interchange guidance

Cross-Reference 1: SKF 7211 CD/P4ADGA. Cross-Reference 2: NSK 7211CTYNDULP4. Cross-Reference 3: FAG B7211-C-T-P4S-DUL. Fafnir carton equivalent: 2MM211WI CR DUL. A same-envelope bearing at a different contact angle is a related size rather than a substitution.