SNFAEX150-9CE1DULSuper Precision Angular Contact Ball Bearing – 150 mm ID, 225 mm OD, 35 mm Width, 15° Contact Angle, ABEC 9, Light Preload, Duplex Pair, 2 Pcs

Product Description

What this part is

SNFA EX150/9 CE1 DUL L54 super-precision angular contact ball bearings. Bore 150 mm, outside diameter 225 mm, width 35 mm per bearing. Series: EX 150 (ISO 7030 envelope). Contact Angle: 15°. Precision Class: ABEC 9. Preload: light. Country of origin: United Kingdom.

Decoding the designation

EX150: SNFA spindle-bearing series on a 150 mm bore. The 9 gives the accuracy class, ABEC 9. CE1: 15° contact angle. DU: duplex, universally ground faces, so any two bearings of the designation match as a set. L: light preload. L54 is an order-code variant recorded as a searchable part-number form.

What these specs mean in practice

A 15° contact angle favours speed and radial stiffness over thrust capacity, which is the combination a high-speed grinding or milling spindle needs. ABEC 9 is the tightest accuracy class in general production, holding bore, outside diameter and running accuracy inside a few microns so the spindle axis stays true at speed. Universally ground faces mean the two bearings can be clamped together in any pairing and the light preload sets itself from the ground faces, without shims or measurement at assembly.

Quantity and configuration

Two bearings ship together, a matched duplex pair. Unit quantity: 2 Pcs. Combined width across the pair: 70 mm.

Fitting notes

Straight 150 mm bore. Preloaded pairs are clamped through the ring faces and run without a set radial clearance, so the internal clearance field reads N/A.

Interchange guidance

ISO envelope equivalent: 7030 C on 150 x 225 x 35 mm. Searchable forms of the number: EX150-9CE1DUL, EX 150/9 CE1 DUL, EX-150-9-CE-1-DUL, EX150/9CE1, 7030-C, 7030C.