Fafnir3MM9110WICRDULSuper-Precision Angular Contact Ball Bearing Pair – 50 mm Bore, 80 mm OD, 16 mm Width, 25°, Light Preload

Product Description

What this part is:

Fafnir 3MM9110WICRDUL, a super-precision angular contact ball bearing supplied as a universally ground duplex pair. Unit Quantity: 2 Pcs. One universally ground duplex pair. GTIN: 087796072480.

Decoding the designation:

3MM — Fafnir super-precision spindle range at a 25° contact angle, ground to ABEC 7 (P4) tolerances.

9110 — the 9100 light dimension series, bore code 10, which maps to the ISO 7010 envelope: 50 mm bore, 80 mm outside diameter, 16 mm width.

WI — low shoulder on both rings.

CR — phenolic cage.

DUL — duplex pair, universally ground, light preload. Either face can be brought together, so the pair mounts back-to-back, face-to-face or in tandem.

Specifications:

Bearing Type: Super-precision angular contact ball bearing. Contact Angle: 25°. Rolling Elements: Ball. Number Of Rows: 1 per bearing. Bore Type: Straight. Closure Type: Open. Cage Material: Phenolic. Precision Class: ABEC 7 / P4. Preload: Light. Mounting Arrangement: Universally ground duplex pair. Series: 9100WI. Base Number: 3MM9110WI. Dynamic Load Rating: 26,300 N per bearing. Static Load Rating: 19,700 N per bearing. Limiting Speed: 16,200 rpm grease; 29,400 rpm oil. Item Weight: 0.516 kg (1.14 lb) for the pair.

Dimensions and mounting:

Bore Diameter: 50 mm. Outside Diameter: 80 mm. Overall Width: 16 mm per bearing. Total Width: 32 mm mounted as a pair. Shaft Backing Shoulder Diameter: 56.1 mm. Housing Backing Shoulder Diameter: 74.2 mm. Maximum Housing Fillet Radius: 1 mm (0.039 in).

Compatibility and replacement:

Super-precision equivalents on the 7010 envelope at 25° with light preload: FAG B7010-E-T-P4S-UL, SKF 7010 ACD/P4ADGA, NSK 7010A5TRDULP4, NTN 7010UAD/GNP4, RHP 7010ETDULP4, Koyo 7010A5 P4 DUL. SNFA VEX 50 /NS 7CE3 shares the 25° angle and envelope. A standard-tolerance 7010-A shares the envelope and angle only. MPN Variants: 3MM9110WIDUL, 3MM-9110-WI-CR-DUL, 3 MM 9110 WI CR DUL, 3MM9110WICRDUL.

Frequently asked questions:

What is the contact angle of the Fafnir 3MM9110WI-DUL?

25°.

How are the two bearings in the pair mounted?

Universally ground: back-to-back, face-to-face or in tandem, at light preload.

What are the dimensions of each bearing?

50 mm bore, 80 mm outside diameter, 16 mm width. The pair occupies 32 mm of width.