NSK7006A5TYDUMAngular Contact Ball Bearing Matched Pair – 30 mm ID, 55 mm OD, 13 mm Width, Open, 25°, Medium Preload, ABEC 7

Product Description

What this part is

NSK 7006A5TYDUM angular contact ball bearing, supplied as a matched duplex pair. Bore: 30 mm. Outside Diameter: 55 mm. Overall Width: 13 mm per bearing. Contact Angle: 25°. Number Of Rows: 1 per bearing. Rolling Elements: Steel balls. Bore Type: Straight. Closure Type: Open. Cage Type: Ball-guided. Precision Class: ABEC 7 / P4. Preload: Medium. Internal Clearance: N/A. Bearing Material: High carbon chrome steel. Series: 7000. Dynamic Load Rating: 18.2 kN per bearing. Static Load Rating: 9.80 kN per bearing. Limiting Speed: 23,600 rpm on grease, 35,300 rpm on oil-air. Lubricant: Grease. Unit Quantity: 2 Pc.

Decoding the designation

A5: 25° contact angle. TY: ball-guided cage. DU: universally ground duplex bearings, so any two will mount together in back-to-back, face-to-face or tandem. M: medium preload. Searchable variants: 7006A5TYDUM, 7006 A5TY DUM, 7006A5TY DUM, 7006A5TYNDUMP4.

What these specs mean in practice

A 25° contact angle carries more thrust and less speed than a 15° execution, which suits a spindle or screw drive that sees a substantial axial component. Medium preload holds the balls in defined contact under load reversal, raising axial stiffness and running accuracy. ABEC 7 tolerances give closer shaft location and lower runout. Universal grinding means the pair sets its own preload when the faces are clamped, with no shims or spacers.

Quantity and configuration

Unit Quantity: 2 Pc. One matched duplex pair, universally ground, medium preload. Mounting Arrangement: Universal.

Fitting notes

Clamping the ground faces together establishes the preload. Preloaded bearings are set at the factory, so no internal clearance figure applies.

Interchange guidance

Same envelope, angle and preload class: SKF 7006 ACD/P4ADGB, FAG B7006-E-T-P4S-DUM, RHP 7006A5TYNDUMP4. A 15° execution on the same envelope is a related size, not a substitute.