NSK7216CTYDULPA7Super Precision Angular Contact Ball Bearing Matched Pair – 80 mm ID, 140 mm OD, 26 mm Width Each, Open, 15° Contact Angle, Light Preload, PA7, 2 Pcs

Product Description

What this part is

NSK 7216CTYDULPA7 is a matched pair of super precision single-row angular contact ball bearings. Series: 7200. Bore: 80 mm. Outside Diameter: 140 mm. Width: 26 mm per bearing. Contact Angle: 15°. Precision Class: PA7. Cage: ball-guided. Closure: open. Searchable forms of the designation are 7216CTYDULPA7, 7216C TY DUL PA7, 7216-CTY-DUL-PA7 and 7216 C TY DUL PA7.

Decoding the designation

Contact Angle: 15°. Cage: ball-guided. Matching: universally matchable duplex. Preload: light. Precision Class: PA7, an NSK special accuracy class.

What these specs mean in practice

7216CTYDULPA7 is a 15° matched pair at PA7 precision. Tighter running accuracy lowers runout and vibration in a spindle. A 15° contact angle favours speed and radial capacity over thrust capacity. Light preload gives defined ball contact with low heat generation, which suits continuous high-speed running.

Speed and temperature

Maximum Speed: 15,000 rpm on oil, 9,000 rpm on grease. Maximum operating temperature: 120 °C. Bearing material: 52100 chrome steel.

Quantity and configuration

Unit Quantity: 2 Pcs. Matched pair, light preload, one row of balls per bearing. Total width of the pair mounted together: 52 mm.

Fitting notes

Bore form: straight. Minimum ring fillet radius: 2.0 mm on the bore side, 1.0 mm on the outside diameter. Preload is set at manufacture, so no clearance adjustment applies at assembly. A matched pair is mounted as supplied, keeping the marked faces together.

Interchange guidance

SKF 7216 CD/P4A is the equivalent 15° super precision bearing. RHP 7216CTDULP4 is the equivalent light-preload duplex pair. Country of Origin: Japan.