Fafnir2MM9104WICRDUHAngular Contact Ball Bearing – 20 mm ID, 42 mm OD, 12 mm Width, Open, 15° Contact Angle, Heavy Preload, P4 (ABEC 7), Matched Duplex Pair

Product Description

What this part is:

Fafnir 2MM9104WI-CR-DUH super-precision angular contact ball bearing, supplied as a matched duplex universal pair. 20 mm bore, 42 mm outside diameter, 12 mm wide, 15° contact angle, heavy preload, phenolic cage, open. Unit Quantity: 2 Pcs.

Decoding the designation:

2MM — Fafnir 15° contact angle super-precision series.

9104WI — Fafnir 9100WI extra-light spindle series, ISO 7004 size, 20 x 42 x 12 mm.

CR — phenolic cage.

DUH — duplex universal pair, heavy preload.

Specifications:

Bore Diameter: 20 mm. Outside Diameter: 42 mm. Overall Width: 12 mm. Contact Angle: 15°. Series: 9100WI. Number Of Rows: 1 per bearing. Rolling Elements: Ball. Bore Type: Straight. Closure Type: Open. Precision Class: ABEC 7 / P4. Cage Material: Phenolic. Cage Type: Machined, outer-ring land-riding. Preload: Heavy. Mounting Arrangement: Duplex universal, DU. Dynamic Load Rating: 11,600 N (2,610 lbf) per bearing, 1 million revolutions. Static Load Rating: 6,010 N (1,350 lbf). Limiting Speed: 37,100 rpm grease; 74,200 rpm oil. Material: Bearing steel. GTIN: 087796321793. Country of Origin: United States. Unit Quantity: 2 Pcs.

Dimensions and mounting:

Bore: 20 mm. Outside Diameter: 42 mm. Width: 12 mm. Shaft backing shoulder diameter: 24.8 mm. Housing backing shoulder diameter: 37.7 mm. Maximum housing fillet radius: 0.6 mm. The faces are universally flush-ground, so the pair mounts back-to-back, face-to-face or in tandem and reaches the specified heavy preload when clamped. Harmonization Code: 8482.10.50.

Compatibility and replacement:

SKF 7004 CD/P4A DGC — 15° heavy-preload universal pair on the same 20 x 42 x 12 mm envelope. ISO size 7004 C. Also listed as 2MM9104WIDUH, 2MM9104WICRDUH, 2MM-9104-WI-CR-DUH and 2MM 9104 WI DUH.

Frequently asked questions:

What are the dimensions of the Fafnir 2MM9104WI-CR-DUH?

20 mm bore, 42 mm outside diameter, 12 mm width.

What contact angle and preload does it have?

Contact Angle: 15°. Preload: Heavy, duplex universal arrangement.

How many bearings are in the listing?

Unit Quantity: 2 Pcs, a matched duplex universal pair.