FafnirHybrid Ceramic Angular Contact Ball Bearing – 50 mm ID, 80 mm OD, 16 mm Width, Sealed Both Sides, 15°, Heavy Preload, ABEC 9 Universal Duplex Pair

Product Description

Product identification

Fafnir 2MMV9110HX-VV-DUH hybrid ceramic super-precision angular contact ball bearing, supplied as a universally ground matched duplex pair. ISO equivalent size 7010. Fafnir is a Timken brand.

Principal dimensions

Bore: 50 mm (1.9685 in)

Outside Diameter: 80 mm (3.1496 in)

Width: 16 mm (0.6299 in) per bearing

Total Width: 32 mm (1.2598 in) across the matched pair

Bore Type: Straight

Base Number: 7010

Precision and running specification

Precision Class: ABEC 9 / ISO P2

Contact Angle: 15°

Preload: Heavy (DUH)

Limiting Speed: 18,000 rpm

Dynamic Load Rating: 21.8 kN

Static Load Rating: 17 kN

Number Of Rows: 1 per bearing, 2 bearings per set

Maximum Operating Temperature: 121 °C

Construction and materials

Rolling Elements: Silicon nitride ceramic balls (HX)

Material: Steel rings with ceramic balls, hybrid construction

Seal Type: Contact seals both sides (VV)

Closure Type: Contact seals both sides (VV)

Lubricant: Grease, factory charged

Snap Ring Included: No

Series: Fafnir MMV9100 / ISO 70 series

Performance in service

Ceramic balls carry roughly 40 percent of the mass of steel at a higher elastic modulus, holding centrifugal ball loading and cage forces down while stiffness rises — the combination that lets a hybrid bearing run cooler and hold accuracy at speed. The 15° contact angle favours speed and radial stiffness. Heavy preload maximises stiffness and positional stability under reversing load, and is preload-set at manufacture.

Sealing

Contact seals on both faces retain the factory grease charge and exclude coolant mist and swarf, suiting sealed-for-life spindle and grinder positions.

Set composition

Unit Quantity: 2 Pcs (one matched duplex pair)

Unit Type: Set

Arrangement / Configuration: Universal duplex, DUH (back-to-back, face-to-face or tandem)

Universal grinding allows back-to-back, face-to-face or tandem arrangement, with preload established as the ground ring faces come together.

Related designations

Cross-Reference 1: SKF 7010 CD/HCP4ADGA (hybrid ceramic build, same size and angle)

Cross-Reference 2: FAG HCB7010-C-T-P4S-DUL (hybrid ceramic build, same size and angle)

Cross-Reference 3: 2MM9110WI-DUH (all-steel open build, same size, angle and preload)

Cross-Reference 4: 2MM-9110-WO-CR-DUL (same envelope, different cage code and light preload)

Origin and classification

Country of Origin: United States

Harmonization Code: 8482.10.50.28