Fafnir2MM9120WI-DUMSuper-Precision Angular Contact Bearing Matched Pair 100x150x24 mm 15° Medium Preload ABEC 7/9

Product Description

What this part is:

Fafnir 2MM9120WI-DUM matched duplex pair of single-row angular contact ball bearings. Each bearing is 100 mm bore, 150 mm outside diameter and 24 mm wide, 48 mm stacked. Open on both faces, universally ground as a set. Unit Quantity: 2 Pcs.

Decoding the designation:

2MM — 15° contact angle, precision class P4 (ABEC 7).

9120 — the 9100 series, ISO 7020 size, 100 x 150 x 24 mm.

WI — low shoulder on both rings, the duplex form.

DU — duplex, universally ground so any two bearings of the set mount in any arrangement.

M — medium preload.

Specifications:

Bore Diameter: 100 mm (3.937 in). Outside Diameter: 150 mm. Width: 24 mm per bearing. Stacked Width: 48 mm. Contact Angle: 15°. Precision Class: ABEC 7 / P4. Preload: Medium. Number Of Rows: 1 per bearing. Rolling Elements: Ball. Closure Type: Open. Unit Quantity: 2 Pcs.

Dimensions and mounting:

Each bearing measures 100 x 150 x 24 mm. The matched pair stacks to 48 mm. Preload is ground into the set at manufacture. Etched marks on the outer rings identify the matched offset.

Compatibility and replacement:

ISO size designation: 7020 (100 x 150 x 24 mm). Searchable variants: 2MM-9120-WI-DUM, 2MM 9120 WI DUM, 2MM9120WIDUM.

Frequently asked questions:

What size is the Fafnir 2MM9120WI-DUM?

Each bearing is 100 mm bore, 150 mm outside diameter and 24 mm wide.

What does DUM mean in 2MM9120WI-DUM?

DU is a universally ground duplex set and M is medium preload.

What contact angle does the 2MM prefix give?

2MM is the Fafnir 15° contact angle, precision class P4.