SNR7012CVDUJ84Super Precision Angular Contact Ball Bearing – Straight Bore, 60 mm ID, 95 mm OD, 18 mm Width, Open, 15° Contact Angle, Universal Pairing, Medium Preload.

Product Description

What this part is

SNR 7012CVDUJ84 single-row super-precision angular contact ball bearing, supplied as a matched duplex pair. Brand: SNR. Manufacturer Part Number: 7012CVDUJ84. Bore: 60 mm. Outside Diameter: 95 mm. Width: 18 mm per bearing. Series: 7000. Number of Rows: 1 per bearing. Rolling Elements: Ball. Bearing Material: bearing steel. Closure Type: open on both faces. Bore Type: straight. Item Weight: 0.95 lbs.

Decoding the designation

Contact Angle: 15°. Preload: medium. Precision Class: ABEC 7 (P4). Cage Material: phenolic. Cage Type: outer-ring land-riding. Mounting Arrangement: universally ground. Lubricant: oil or grease. Minimum Temperature: -30°C. Maximum Temperature: 120°C.

The carton carries this bearing in four schemes: SNR 7012 C V DU J84, FAG 7012-C-T-DUM-P4, Fafnir 2MM9112WI CR DUM and SKF 7012 CD/P4ADGC. Searchable variants of the number include 7012CVDUJ84, 7012 C V DU J84 and 7012-C-V-DU-J84.

What these specs mean in practice

A 15° contact angle keeps the load path close to the radial plane, favouring speed and radial stiffness over thrust capacity. That is the trade a high-speed spindle position normally wants.

Medium preload sits a step above light. It buys more axial and radial stiffness and tighter shaft location, at the cost of a lower speed ceiling and more heat generated in the contact. That is the setting chosen where cut quality and positional repeatability matter more than top spindle speed.

The phenolic cage is light and absorbs oil, so it runs cooler and quieter than brass or steel at high shaft speed, and the 120°C ceiling reflects the phenolic. Riding on the outer-ring land centres the cage on the stationary ring, steadying cage motion through acceleration and deceleration. ABEC 7 precision holds low radial and axial runout and gives close, repeatable shaft location.

Quantity and configuration

Unit Quantity: 2 Pcs. This listing supplies a matched duplex pair, universally ground so the two bearings can be clamped together in any face orientation and will arrive at the designed medium preload.

Cross-reference guidance

Cross-Reference: SKF 7012 CD/P4ADGC (medium preload). Cross-Reference: FAG B7012-C-T-P4S-DUM. Cross-Reference: Fafnir 2MM9112WI CR DUM. Harmonization Code: 8482.10.50. A 7012 set at light preload is a related execution rather than a substitution, because the preload class changes both the stiffness and the speed ceiling. A 25° 7012 is likewise a related size only.