NSK7206A5TYDULAngular Contact Ball Bearing Matched Duplex Pair 30 x 62 x 16 mm, 25° Contact Angle, Polyamide Cage, Light Preload, 32 mm Total Width

Product Description

What this part is

A matched duplex set of single-row angular contact ball bearings in the 72-series, 30 mm bore, 62 mm outside diameter, 16 mm width per bearing. The two rings are ground as a pair so that clamping them together produces a defined light preload.

Decoding the designation

7206 — single-row angular contact ball bearing, 30 mm bore, 72 dimension series
A5 — 25° contact angle in the NSK scheme
TY — polyamide (moulded resin) cage
DU — duplex, faces ground for pairing
L — light preload

What these specs mean in practice

A 25° contact angle carries more thrust and gives higher axial stiffness than a 15° execution of the same envelope, at a lower speed ceiling. Light preload keeps ball skidding out of the contact while holding frictional heat and power draw down, the usual choice for moderate-speed spindles and precision screw drives. The polyamide cage is quiet and tolerant of momentary misalignment, and sets a working temperature ceiling near 120 °C, above which a machined cage execution applies.

Quantity and configuration

2 Pcs, supplied as a matched duplex pair. Total mounted width of the pair is 32 mm.

Fitting notes

The pair is mounted in the ground orientation with the etched face markings aligned, and the rings are clamped fully so the preload comes off the ground faces rather than off the clamp force. Preload is set by tightening the inner and outer rings against square shoulders, and mixing one bearing of the set with a bearing from another set removes the ground relationship the preload depends on.

Interchange guidance

Same-spec equivalents are 25° duplex light-preload 7206-size pairs under other schemes, such as an SKF 7206 ACD/P4ADGA-class light-preload pair or an FAG 7206-B-2RS-TVP duplex equivalent at matching angle and preload. NSK 7206CTYDUL at 15°, 7206A5TYDUM at medium preload, and single universally ground 7206A5TYSUL bearings are related sizes rather than interchanges.