SNRAngular Contact Ball Bearing – Straight Bore, 30 mm ID, 62 mm OD, 16 mm Width, Open, 15° Contact Angle, Medium Preload.

Product Description

What this part is

NTN-SNR 7206CG1DUJ84 super-precision angular contact ball bearing, ISO 7200 light series, 30 x 62 x 16 mm. Bore: 30 mm. Outside Diameter: 62 mm. Overall Width: 16 mm. Contact Angle: 15°. Number of Rows: 1. Rolling Elements: Ball. Bearing Material: Bearing steel. Bore Type: Straight. Closure Type: Open. Cage Material: Phenolic (laminated resin). Cage Type: Machined, outer-ring centred. Precision Class: ISO Class 4 (ABEC 7 / P4). Preload: Medium. Internal setting: by preload. Series: 7200. Unit Quantity: 2 Pcs.

Decoding the designation

7206 — ISO 7200 light series angular contact ball bearing on a 30 mm bore. C — Contact Angle: 15°. G1 — Cage Material: Phenolic (laminated resin), machined and centred on the outer ring. J84 — Preload: Medium, at Precision Class: ISO Class 4 (ABEC 7 / P4). Searchable forms of the number: 7206CG1DUJ84, 7206 C G1 DU J84, 7206-C-G1-DU-J84, 7206CDUJ84, 7206 C DU J84.

What these specs mean in practice

A 15° contact angle favours speed and radial capacity; a 25° bearing on the same 30 x 62 x 16 mm envelope carries more thrust and less speed. Precision Class: ISO Class 4 (ABEC 7 / P4) gives tighter bore, outer-ring and runout tolerances than a standard-class bearing, which holds a spindle centred and lowers running vibration. Cage Material: Phenolic (laminated resin) is light, low-inertia and retains oil in its fabric base. Cage Type: Machined, outer-ring centred — the cage rides on the outer-ring land, which keeps it stable at high rotational speed. Preload: Medium sits one step above light on the SNR preload ladder: it raises axial and radial stiffness and tightens shaft location under load, and it runs warmer than a light-preload set at the same speed. A preloaded pair is set by preload rather than by a clearance class.

Quantity and configuration

Unit Quantity: 2 Pcs — a matched pair. The faces are universally ground, so the pair reaches its rated medium preload back-to-back, face-to-face or in tandem. Mounting Arrangement: Universal (DB, DF or DT).

Interchange guidance

Carton cross-references: FAG B7206-C-T-P4S, Fafnir 2MM206WI CR DUM, SKF 7206 CDGB/P4A, NSK 7206CTYNSUMP4. Each shares the 30 x 62 x 16 mm envelope at a 15° contact angle in ABEC 7. A 7206 at 25°, or one at light or heavy preload, shares the same envelope but changes the axial stiffness and speed of the spindle, and is a related size rather than an equivalent.