Fafnir2MM9105WI DUHSuper Precision Angular Contact Ball Bearing, Matched Duplex Pair – Straight Bore, 25 mm ID, 47 mm OD, 12 mm Width, 24 mm Total Width, Open, 15° Contact Angle, Heavy Preload, Phenolic Outer-Land-Riding Cage, ISO P4S

Product Description

What this part is:

Fafnir 2MM9105WI DUH is a matched duplex pair of super precision angular contact ball bearings, 9100WI spindle series, 25 x 47 x 12 mm per bearing with a 15° contact angle and heavy preload. World Part Number: 7005C-T-P4S-DUH. Unit Quantity: 2 Pcs.

Decoding the designation:

2MM — 15° contact angle, Fafnir super precision spindle bearing.

9105 — 9100WI series, ISO 70xx light section; the 9105 is a 7005 envelope at 25 x 47 x 12 mm.

WI — low shoulder on both rings.

CR — phenolic outer land riding cage.

DU — duplex, a factory-matched two-bearing set.

H — heavy preload.

Specifications:

Bore Diameter: 25 mm. Outside Diameter: 47 mm. Bearing Width: 12 mm per bearing. Total Width: 24 mm for the pair. Contact Angle: 15°. Number Of Rows: 1 per bearing. Bore Type: Straight. Closure Type: Open. Rolling Elements: Steel balls. Cage Type: CR, phenolic outer land riding. Cage Material: Phenolic. Precision Class: ISO P4S (ABEC 7/9). Preload: Heavy. Mounting Arrangement: Duplex pair. Dynamic Radial Load Rating, 1M revolutions (C1): 12,900 N (2,910 lbf). C1 ISO Dynamic Radial Rating, per row: 11,700 N (2,640 lbf). Static Radial Load Rating (C0): 7,400 N (1,660 lbf). Limiting Speed, grease: 30,900 rpm. Limiting Speed, oil: 61,800 rpm. Lubricant: grease or oil.

Dimensions and mounting:

Max Shaft Fillet Radius: 0.6 mm. Outer Ring To Clear Radius: 0.6 mm. Shaft Backing Shoulder Diameter: 29.9 mm. Housing Backing Shoulder Diameter: 42.6 mm.

Compatibility and replacement:

Cross-references: FAG B7005-C-T-P4S-DUH; SKF 7005 CD/P4ADGC (P4A class); NSK 7005CTRDUHP4 (P4 class). MPN variants: 2MM9105WIDUH, 2MM9105WI DUH, 2MM-9105-WI-DUH, 2 MM 9105 WI DUH, 2MM9105WICRDUH, 7005C, 7005C-T-P4S-DUH. Base Number: 7005.

Frequently asked questions:

What are the dimensions of the Fafnir 2MM9105WI DUH?

Each bearing is 25 mm bore, 47 mm outside diameter and 12 mm wide; the duplex pair has a 24 mm total width.

What does DUH mean in 2MM9105WI DUH?

DU is a factory-matched duplex set and H is heavy preload.

What are the limiting speeds of the 2MM9105WI DUH?

30,900 rpm on grease and 61,800 rpm on oil.