Fafnir3MM9109WI DULSuper-Precision Angular Contact Ball Bearing – 45 mm ID, 75 mm OD, 16 mm Width, 25° Contact Angle, ABEC 7 / P4, Light Preload, Phenolic Cage

Product Description

What this part is:

Fafnir 3MM9109WI DUL is a matched duplex pair (2 pieces) of super-precision angular contact ball bearings. Bore Diameter: 45 mm. Outside Diameter: 75 mm. Width: 16 mm per bearing. Contact Angle: 25°. Rolling Elements: Ball. Closure Type: Open. Cage Material: Phenolic. Preload: Light. Precision Class: ABEC 7 / P4. Unit Quantity: 2 Pcs.

Decoding the designation:

3MM — Fafnir super-precision angular contact series with a 25° contact angle. Precision class P4 / ABEC 7.

9109 — 9100 series, the ISO 7009 envelope, 45 x 75 x 16 mm.

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

CR — phenolic cage.

DU — duplex set, universally ground.

L — light preload.

Specifications:

Bore Diameter: 45 mm. Outside Diameter: 75 mm. Width: 16 mm per bearing. Contact Angle: 25°. Precision Class: ABEC 7 / P4. Cage Material: Phenolic. Preload: Light. Arrangement: Matched duplex pair, universally ground. Harmonization Code: 8482.10.50.

Dimensions and mounting:

Envelope: 45 x 75 x 16 mm per bearing, ISO 7009 size. Universal grinding allows the pair to be arranged back-to-back, face-to-face or in tandem.

Compatibility and replacement:

Cross-References: SKF 7009 ACD/P4A DGB; FAG B7009-E-T-P4S-DUL (P4S class); NSK 7009A5TRDULP4. MPN Variants: 3MM9109WICRDUL, 3MM9109WIDUL, 3MM-9109-WI-CR-DUL.

Frequently asked questions:

What are the bore, outside diameter and width?

Bore 45 mm, outside diameter 75 mm and width 16 mm per bearing.

What contact angle and preload does it have?

The 3MM series has a 25° contact angle, and the L suffix is light preload.

How many pieces are included?

Two bearings, a matched universally ground duplex pair.