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Most orders ship within 1–2 business days via UPS. Larger equipment ships via freight carrier, and customers can use the shipping estimator on the product page for a location-specific quote. Local pickup is also available at the Fairfield, IL facility, typically ready within 4 hours.

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MRO Exchange accepts all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available, with payment due prior to shipment. Custom terms are available for established accounts.

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Timken 2MM312WI DUL Angular Contact Ball Bearing 60 x 130 x 31 mm Factory Sealed

$1,799.00 USD

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ConditionFactory Sealed MPN2MM312WI DUL Stock #0226-00148

Photos reflect current condition. Items differing from description may be eligible for return or refund — see our condition guide.

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Estimated package weight: 8.0 lbs

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The Timken Fafnir 2MM312WI DUL is a super precision angular contact ball bearing matched set offered here as two factory sealed boxes. Each box contains a duplex DUL configuration (two universally ground bearings arranged for light preload), making this offering a total of two matched pairs. The 2MM designation indicates ABEC 7 (ISO Class 4) precision per the original Fafnir nomenclature, while the carton markings on the visible label also reference ABEC 9-MMV tolerance class with bore deviation of 5 micrometers and outside diameter deviation of 6 micrometers. The 312 size code places this bearing in the medium 300W series with a 60 mm bore, 130 mm outside diameter, and 31 mm width per Timken published reference data for this part number. WI construction provides full shoulders on both sides of the inner ring and a low shoulder on the outer ring, characteristic of standard angular contact ball bearings used in machine tool spindle applications. The CR suffix indicates a phenolic resin cage, and the DUL preload designation pairs the bearings with light preload for combined radial and axial load capacity in both directions when mounted face to face or back to back. Labels indicate the bearings were manufactured in the USA and tested per ABMA Standard 13. Typical applications include CNC machine tool spindles, high speed grinding spindles, precision turning centers, and ball screw support assemblies where stiffness, runout accuracy, and elevated rotational speed are required. Original factory shrink wrap and outer cartons are intact in the photos provided. Part number markings: 2MM312WI CR DUL.

Stock # 0226-148

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Frequently Asked Questions

Shipping & Handling

Most orders ship within 1–2 business days via UPS, but expedited same-day handling is available as an add-on to orders in cart. Larger equipment ships via freight carrier. Use the shipping estimator above for a location-specific quote. Local pickup is also available at our Fairfield, IL facility, typically ready within 4 hours.

Returns & Condition

All items are sold as-described based on the photos and condition listed. If an item arrives differing from its description, it may be eligible for return or refund. See our full condition guide for details on our grading terms.

Payment Options

We accept all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available by selecting "Purchase Order / Wire Transfer" at checkout. Payment is due prior to shipment. Contact us for custom terms on established accounts. Tax exemptions are honored if proper documentation is provided.

Timken 2MM312WI DUL Angular Contact Ball Bearing 60 x 130 x 31 mm Factory Sealed