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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 55437 Tapered Roller Bearing Cup 4.375 x 0.8125 in Open Box - Unused

$24.99 USD

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✓ 30-day returns on every item — return policy

ConditionOpen Box - Unused MPN55437 Stock #0426-01290

30-day returns on every item. Photos reflect the actual item’s current condition — see our return policy and condition guide.

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⚡ Same-day shipping available — order by 11 am CT ($100 add-on at checkout)

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The Timken 55437 is a single tapered roller bearing cup, also known as an outer ring or outer race, designed for use in TS type single-row tapered roller bearing assemblies. Manufactured by Timken in the United States, part number 55437 features a 4.375 inch outside diameter and a cup width of 0.8125 inch, with a chrome steel construction and an uncoated finish. This cup is a separable component that pairs with a matching cone assembly to form a complete single-row tapered roller bearing capable of carrying combined radial and axial loads. Compatible cone numbers include 55175, 55175C, 55176C, 55187C, 55196, 55200, 55200C, 55206, and 55206C, making this cup applicable across a range of shaft bore sizes within the 55000 series. The ABMA precision rating is Class 2, and the cup features no lubrication hole. Typical applications for this bearing series include agricultural equipment, conveyor systems, automotive axle assemblies, and industrial gearboxes where heavy radial and moderate thrust loading are present. The item is in its original Timken factory packaging with plastic protective wrap intact. The product UPC is 053893335094. The box label identifies part number 55437 with lot code 200011 and date code 44.

Stock # 0426-01290

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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.