SNFAEX95-7CE1DULSuper-Precision Angular Contact Ball Bearing 95 x 145 x 24 mm, 15 Degree Contact Angle, ABEC 7, Light Preload, Duplex-Ground Single Ring

Product Description

What this part is

An SNFA EX95-7CE1DUL super-precision angular contact ball bearing, single row, ground to duplex tolerances. One ring, half of a pair.

Decoding the designation

EX — SNFA E light dimension series.
95 — bore in millimetres, stated directly.
7 — ABEC 7 precision class.
CE1 — SNFA design block; the trailing 1 fixes the contact angle at 15°.
DUL — duplex-ground, light preload.
-1/2PR — half a pair, so one bearing.

What these specs mean in practice

A 15° contact angle favours speed and radial stiffness over thrust capacity, which is why it is the standard angle for high-frequency spindle front bearings. Light preload holds a lower running temperature and less frictional drag than the medium and heavy grades. Duplex grinding means the ring faces are flush-ground to a common height, so a like-marked partner ring seats against it and reaches the marked preload without shims.

Published specifications

Bore: 95 mm (3.7402 in)
Outside diameter: 145 mm (5.7087 in)
Width: 24 mm (0.9449 in)
Contact angle: 15°
Precision class: ABEC 7
Preload: light
Rolling elements: steel balls, single row
Closure: open both faces

Quantity and configuration

1 Pc. One ring, half of a duplex light-preload pair.

Interchange guidance

ISO base number 7019, angle-designated 7019C. Searchable forms are EX95-7CE1DUL, EX957CE1DUL, EX 95 7 CE1 DUL and EX95 7CE1 DUL-1/2PR. An EX95-7CE2 or EX95-7CE3 ring carries a different contact angle on the same envelope and is a related size, not an interchange; DUM and DUH are the medium and heavy preload grades and are likewise related sizes.