Fafnir3MM9110WI DUMSuper-Precision Angular Contact Ball Bearing Duplex Pair – Straight Bore, 50 mm ID, 80 mm OD, 16 mm Width, Open, 25° Contact Angle, ABEC 7, Medium Preload

Product Description

What this part is:

Fafnir 3MM9110WI-DUM super-precision angular contact ball bearing set, ISO 7010 envelope, 50 mm bore x 80 mm outside diameter x 16 mm width per bearing, 25° contact angle, medium preload, ABEC 7 / P4. Supplied as a matched duplex pair of two bearings with universally ground faces. Unit Quantity: 2 Pcs.

Decoding the designation:

3MM — 25° contact angle in Timken’s Fafnir super-precision scheme; the MM prefix is ISO precision class P4, equal to ABEC 7.

9110 — the 9100WI light series, which maps to ISO 7010.

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

DU — universally faced duplex pair.

M — medium preload.

7010E-T-P4S-DUM — Timken’s world part number for this set.

Specifications:

Bore Diameter: 50 mm. Outside Diameter: 80 mm (3.150 in). Overall Width: 16 mm (0.630 in) per bearing. Total Width: 32 mm across the pair. Bore Type: Straight. Number Of Rows: 1 per bearing. Rolling Elements: Steel balls. Closure Type: Open. Contact Angle: 25°. Precision Class: ABEC 7 / P4. Preload: Medium. Cage Material: Machined laminated phenolic. Cage Type: Outer-ring land-riding, machined. Bearing Material: High-carbon chrome steel. Series: 9100WI. Lubricant: grease or oil. Unit Quantity: 2 Pcs. Dynamic Radial Load Rating, per bearing, Timken C1 at 1 million revolutions: 26,300 N (5,910 lbf). Dynamic Radial Load Rating, per row, ISO C1: 23,900 N (5,380 lbf). Static Radial Load Rating: 19,700 N (4,430 lbf). Limiting Speed, grease lubrication: 16,200 rpm. Limiting Speed, oil lubrication: 29,400 rpm. GTIN: 087796072497. Country of Origin: United States.

Dimensions and mounting:

Shaft Backing Shoulder Diameter: 56.1 mm (2.210 in). Housing Backing Shoulder Diameter: 74.2 mm (2.920 in). Maximum Shaft Fillet Radius: 1 mm (0.039 in). Outer Ring To-Clear Radius: 1 mm (0.039 in). Mounting Arrangement: matched pair with universally ground faces, mounting back-to-back, face-to-face or in tandem.

Compatibility and replacement:

Cross-references: Timken world part number 7010E-T-P4S-DUM, NSK 7010A5TRDUMP4, FAG B7010-E-T-P4S-UM, SKF 7010 ACD/P4ADGB, RHP 7010ETDUMP4. A 2MM9110WI set shares the 50 x 80 x 16 mm envelope at a 15° contact angle.

Frequently asked questions:

What contact angle does the Fafnir 3MM9110WI-DUM have?

Contact Angle: 25°, from the 3MM prefix and confirmed by the 7010A5 and B7010E carton designations.

What is the GTIN?

GTIN: 087796072497.

What are the speed limits?

Limiting Speed, grease lubrication: 16,200 rpm. Limiting Speed, oil lubrication: 29,400 rpm.