Fafnir3MM9107WICRDULSuper-Precision Angular Contact Ball Bearing 35x62x14 mm 25 Degree Duplex Matched Pair Light Preload ABEC 9

Product Description

What this part is:

Fafnir 3MM9107WICRDUL (listed as 3MM9107WI-DUL) super-precision angular contact ball bearing in the WI spindle series, supplied as a factory-matched duplex pair (Unit Quantity: 2 Pcs). Single row per bearing, open, straight bore, 25° contact angle, light preload, ABEC 7/9 (ISO P4S).

Decoding the designation:

3MM — 25° contact angle in the Fafnir scheme at ISO P4S: ABEC 7 dimensional tolerances with ABEC 9 running accuracy.

9107 — Fafnir’s number for the ISO 7007 envelope, 35 x 62 x 14 mm.

WI — super-precision spindle bearing series, low shoulder on both rings.

DUL — duplex universal pair, light preload.

Specifications:

Bore Diameter: 35 mm (1.3780 in). Outside Diameter: 62 mm (2.4409 in). Overall Width: 14 mm (0.5512 in) per bearing. Total Width: 28 mm (1.1024 in) across the pair. Contact Angle: 25°. Dynamic Load Rating: 20,200 N (4,540 lbf) per bearing. Static Load Rating: 13,000 N (2,930 lbf) per bearing. Limiting Speed: 22,300 rpm grease; 40,600 rpm oil. Precision Class: ABEC 7/9 (ISO P4S). Preload: Light. Cage Type: Phenolic, outer-land-riding. Rolling Elements: Steel balls. Number Of Rows: 1 per bearing. Bore Type: Straight. Closure Type: Open. Lubricant: Grease or oil. Country of Origin: United States.

Dimensions and mounting:

Bore Diameter: 35 mm. Outside Diameter: 62 mm. Width: 14 mm per bearing. Universal grinding allows the pair to be arranged back-to-back, face-to-face or in tandem. Light preload is ground into the ring faces. Alignment marks on the outer ring faces set the intended arrangement.

Compatibility and replacement:

Cross-references: SKF 7007 ACD/P4ADGA (25°, light preload); FAG B7007-E-T-P4S-DUL (25°, P4S, light preload). ISO shorthand for this size and angle is 7007 AC; the designation also appears as 7007 A or 7007 E. Carton designations: 3MM 9107 WI DUL, B 7007 E T DUL P4. CAD model and data sheet: available from Timken (cad.timken.com).

Frequently asked questions:

What size is the Fafnir 3MM9107WI-DUL?

Bore 35 mm, outside diameter 62 mm, width 14 mm per bearing, 28 mm across the pair.

What are its load ratings and speeds?

Dynamic 20,200 N and static 13,000 N per bearing; limiting speed 22,300 rpm on grease and 40,600 rpm on oil (Timken).

What do 3MM and DUL mean?

3MM is a 25° contact angle at P4S precision; DUL is a duplex universal pair with light preload.