Timken 318KDD – Radial Ball Bearing, 6318 Industry Number, Double Shielded Closure, 90 mm Bore Dia, Alloy Steel
Timken 318KDD – Radial Ball Bearing, 6318 Industry Number, Double Shielded Closure, 90 mm Bore Dia, Alloy Steel
Call 850-565-3492 for live factory inventory, lead times & emergency freight options.
Couldn't load pickup availability
Ships factory-new in original packaging.
Not sure if a compatible flange, seal kit, or accessory exists for this item? Ask our team — we're happy to help you find the right part.
TIPS Contract Vendor
Officially awarded purchasing cooperative vendor.
Why Buy From Us
Every quote personally reviewed. Direct sourcing from top manufacturers.
Commercial Ordering FAQ
How do I verify that Timken 318KDD – Radial Ball Bearing, 6318 Industry Number, Double Shielded Closure, 90 mm Bore Dia, Alloy Steel is the correct replacement part for my equipment?
Check the OEM part number (318KDD) against your equipment nameplate or the manufacturer's repair parts list before ordering. If you are not sure, call the National Boiler Supply order desk at 850-565-3492 and we can cross-reference your equipment model and serial numbers before the order ships.
What are the shipping and freight options for Timken orders?
Standard parcel orders ship quickly from commercial distribution centers. Shipping is a $35 flat rate on orders under $999, and qualifying orders of $999 or more ship free by ground. Heavy equipment that has to move by LTL freight is quoted after the order is placed and confirmed with you before dispatch.
Can contractors or facility managers request a formal quote or use a Purchase Order (PO)?
Yes. National Boiler Supply works with commercial contractors, mechanical engineers, municipalities, and facility teams. Call 850-565-3492 for a formal quote, bulk pricing, or PO and tax-exempt order processing.
What if this Timken part is marked Call to Order or needed for an emergency repair?
Call our order desk at 850-565-3492. We can confirm factory lead times right away and arrange expedited air or hot-shot delivery when a repair cannot wait.
Order the Timken 318KDD Radial Ball Bearing from National Boiler Supply. Call our order desk at 850-565-3492 for a formal quote or a part number cross-check.
Product Details
Bearing Industry Number 6318, Bore Diameter 90 mm, Closure Double Shielded, Outer Ring Width 43 mm, Outside Diameter 190 mm, Ring Material Alloy Steel, System of Measurement Metric, Cage Material Steel, ABEC Rating 1, Ball Material Alloy Steel, Bore Diameter Tolerance +0.000/-0.020 mm, Dynamic Radial Load Capacity 158,200 N, Fillet Radius 3 mm, Includes Retaining Ring No, Lubricant Material Chevron SRI 2 Grease.
Technical Specifications
| Brand | Timken |
|---|---|
| Manufacturer Part Number | 318KDD |
OEM Part Verification: Confirm Timken part number 318KDD against your equipment nameplate or parts list before ordering. Our order desk can cross-check it for you.
Order Desk Support: Call 850-565-3492 for formal quotes, lead times, and volume pricing.
Corporate Procurement & PO Processing
Formal Purchase Orders (POs) and tax-exempt ordering are accepted for commercial contractors and institutional facilities.
Apply for Trade Account & Terms →📋 Procurement & Shipping Notice
- LTL Freight Dispatch: Heavy commercial units ship directly via insured LTL carrier with delivery coordination included.
- Project Timelines & Submittals: Need guaranteed delivery dates, formal submittals, or tax-exempt processing?
👉 Request a Commercial Quote or contact our procurement team for direct freight scheduling.