NSK TAC140-3M thrust ball bearing de contacto angular

NSK TAC140-3M belongs to thrust ball bearing de contacto angular, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for TAC140-3M and any equivalents.

Machine tool spindles that carry axial load need a thrust bearing built for rigidity, and the NSK TAC series is made for exactly that duty. These angular contact thrust ball bearings sit behind ball screws in machining centers, lathes, grinders and boring machines. MR Industrial Accessories LLC supplies the series to maintenance and purchasing teams throughout the United States and Latin America, and can help you confirm the right size before you order.

Reading the code is the first step. TAC marks the angular contact thrust ball bearing family, and the digits that follow give the shaft bore in millimeters: TAC120-3M fits a 120 mm shaft, TAC140-3M a 140 mm shaft, and TAC160-3M a 160 mm shaft. If a designation on your machine is unclear, send it over and we will confirm what it means.

Typical installations include ball screw assemblies on CNC lathes, grinding machines, boring machines and machining centers, plus precision rotary tables and measuring equipment. In each case the bearing absorbs axial forces while keeping deflection low. It is a frequent choice where axial capacity and stiffness are needed in a tight envelope.

Before selecting a size, gather four things: shaft diameter, axial load in service, running speed and lubrication method. Fitting calls for a clean work area, correct alignment and the specified preload. Where chips or coolant are present, consider extra sealing or barriers. Grease and oil are both used, depending on how much heat the application generates. Check axial clearance before startup and follow the machine builder's instructions.

Interchange between brands is possible for angular contact thrust ball bearings when the main dimensions, load ratings and tolerances line up. A matching code alone does not prove compatibility, so compare the full designation and specifications. If you only have a competitor's number or measurements taken from the spindle, send them and we will identify the equivalent or quote the exact size.

To request a quote, message the part number on WhatsApp or by email. If you are unsure which bearing fits, share the housing or spindle dimensions and our team will suggest options and help you choose.