Würth Baer Supply CompanyWürth Baer Supply Company•Built For Those Who Build The World™
    (800) 289-2237
    Vernon Hills, IL
    (800) 289-2237
    Vernon Hills, IL
    Home
    Sign in / Register
    • Quick Order
    • Quotes
    • Promotions
    • Careers
    • Help
    • Contact
    Mobile app

    Why Shop With Us?

    • Lorry and clock graphic

      BUY "YOUR WAY"

      Order by 24/7 by web, contact our sales reps or call by phone.

    • Shopping bag with heart graphic

      One Stop Shop

      What you need, when you need it, all in one place.

    • Trolley graphic

      Next Day Delivery

      Most orders ship same day.

    • Supprt headphone graphic

      Expert Support Team

      Advice and support from knowledgeable professionals.

    Need help? Call(800) 289-2237

    Company Information

    • About Our Company
    • Who is Reinhold Würth?
    • Contact Us / Locations
    • Return Policy
    • Shipping Policy
    • Careers
    • Sales Tax and Exemption
    • Credit Application
    • ACH / e-Check Registration
    • Terms & Conditions
    • Privacy Notice
    • Accessibility Statement
    • Help
    • FAQ
    • Pay Invoices Online

    Shop With Us

    • Shop by Brand
    • Clearance
    • Daily Discounts
    • Catalogs
    • Vendor Literature
    • Download Our Mobile App

    Services

    • SAM.gov - CAGE Code: 1UXJ6
    • Architects & Designers Portal
    • ORSY - Inventory Management Solution
    • Machinery

    Contact

    • Toll-free (800) 289-2237
    • Website Support (800) 944-2237 x4444
    • Support via Text / SMS (800) 289-2237
    Compliance LogoThe logo of Viking CloudThe logo of FSCCARB 2 Compliant
    Vender Freight
    Routing
    • Our Blog (opens in a new tab)
    • LinkedIn (opens in a new tab)
    • Facebook (opens in a new tab)
    • Instagram (opens in a new tab)
    • YouTube (opens in a new tab)
    • TikTok (opens in a new tab)
    • Pinterest (opens in a new tab)
    • X (formerly Twitter) (opens in a new tab)
    Compliance LogoThe logo of Viking CloudThe logo of FSCCARB 2 Compliant
    Vender Freight
    Routing
    Approved US Government VendorCage Code: 1UXJ6

    Copyright © 2004-2026, Würth Baer Supply Company. All Rights Reserved.

    Terms & ConditionsPrivacy NoticeAccessibilityDo Not Sell My Personal InformationWürth ComplianceSite FeedbackSitemap
    0Cart
    0Cart
    Replacement Parts
    1. Home
    2. Bits, Blades and Cutters
    3. Replacement Parts
    Item # AA47721 • Mfr # 47721

    Routing accessories ball bearing guides 3/4 x 1/2

    Description

    Routing Accessories Ball Bearing Guides For Router Use

    Routing accessories ball bearing guides from Amana Tool provide guided support at the end of compatible router bits, so the cutting edge follows a template or work edge with controlled contact. This specific ball bearing guide uses only the finest industrial quality precision ball bearings available, which supports smooth rotation during routing tasks and helps maintain clean tracking along jigs or edges. The bearing is described as a ball bearing guide, steel, indicating a steel construction that supports rigidity at the guide point where forces from the cutter are transferred. Bearings are double steel-shielded for extra rigidity and to inhibit dust, so the rolling surfaces stay protected from debris that could otherwise affect rotation during repeated passes. A special high-performance, high-temperature grease is used for maximum life, helping the bearing keep turning freely in heat generated by continuous routing.

    Key Ball Bearing Guide Details That Matter In Use

    • The ball bearing guide has a 3/4 inch diameter, which defines the path the cutter follows against templates or work edges and helps installers match guide size to routing setups that are built around this diameter.
    • The 1/2 inch inner diameter interfaces with the router bit shaft or arbor size it is designed for, so the bearing centers correctly on the bit and maintains concentric rotation during routing passes.
    • The 5/32 inch height defines the axial dimension of the bearing, which affects how much guiding surface is presented at the end of the bit when working along an edge or pattern.
    • Double steel shields provide extra rigidity and inhibit dust, helping the bearing retain its structural stability while reducing the amount of dust that reaches the internal raceway during cutting.
    • High-performance, high-temperature grease is used for maximum life, which helps the bearing maintain smooth rotation even when routing generates heat at the guide point over extended use.

    Installation Fit And Service Behavior Of The Bearing

    This ball bearing guide is dimensioned at 3/4 inch diameter, 1/2 inch inner diameter, and 5/32 inch height, so it fits applications that call for these measurements on the router bit and guide stack. The steel construction and double steel-shielded design give the bearing a rigid outer surface, which affects how it seats against the end of the bit and how it contacts the work edge during use. The product uses special high-performance, high-temperature grease for maximum life, so the lubricated internal components continue to rotate freely under normal routing temperatures. Note: solvents should not be used to clean ball bearings, as this will deteriorate the special grease, so cleaning approaches that avoid solvents help preserve the lubricant that supports smooth service.

    How This Ball Bearing Guide Works In Real Routing

    Where This Amana Tool Bearing Guide Is Applied

    This routing accessories ball bearing guide, steel, is used at the tip of compatible router bits to guide cutting according to a template or workpiece edge. The 3/4 inch diameter defines the offset of the cutting edge from the guide point, so routing jigs or patterns matched to a 3/4 inch guide will track as intended. With a 1/2 inch inner diameter, the bearing is suited to bit designs that accept this bore size, positioning the bearing concentrically so the edge contact stays even through the cut. The 5/32 inch height sets the bearing contact band, which influences how the guide rides along material edges or template surfaces over the length of a pass.

    Why The Construction And Maintenance Details Matter

    The use of the finest industrial quality precision ball bearings helps the Amana Tool guide rotate smoothly, which supports cleaner tracking and more consistent edge results when routing against patterns. Double steel-shielded construction adds extra rigidity and inhibits dust, keeping contaminants away from the bearing races so rotation remains more consistent over time in dusty routing environments. A special high-performance, high-temperature grease is used for maximum life, helping the bearing resist breakdown during routing operations that generate heat near the cutter. Note: solvents should not be used to clean ball bearings, as this will deteriorate the special grease, so solvent-free cleaning preserves the lubricant film that supports bearing life. 'Frozen' bearings, ones that do not rotate freely, should be replaced immediately, so when rotation stops, swapping in a new bearing restores guided movement at the bit tip. Application: AA45463, AA45465, AA45990, so this bearing guide serves as the specified ball bearing guide, steel, component for these referenced Amana Tool applications.

    Common Questions About This Amana Tool Bearing Guide

    What are the key dimensions of this ball bearing guide?

    This ball bearing guide has a 3/4 inch diameter, 1/2 inch inner diameter, and 5/32 inch height, so it fits router bit and guide setups designed around those specific measurements.

    How does the double steel-shielded design help during routing?

    The double steel-shielded design adds extra rigidity and inhibits dust, so the bearing structure stays stable while helping protect the internal raceway from debris generated by routing.

    What type of lubrication is used in this bearing guide?

    The ball bearing guide uses special high-performance, high-temperature grease for maximum life, so the bearing can keep rotating smoothly under heat from routing operations.

    Why should solvents not be used to clean this ball bearing guide?

    This ball bearing guide uses special grease, and solvents should not be used to clean ball bearings, as this will deteriorate the special grease that supports bearing life.

    When should this ball bearing guide be replaced?

    The ball bearing guide should be replaced immediately when it is 'frozen', meaning it does not rotate freely, so guided movement at the bit tip is restored.

    Which Amana Tool applications list this bearing guide?

    This ball bearing guide is listed with Application: AA45463, AA45465, AA45990, so it functions as the designated bearing for those specific Amana Tool applications.

    Choose This Bearing Guide For Matching Applications

    The Amana Tool ball bearing guide, steel, combines a 3/4 inch diameter, 1/2 inch inner diameter, and 5/32 inch height with industrial quality precision ball bearings, so it aligns with router setups that specify these measurements. Double steel shields, special high-performance, high-temperature grease, and clear guidance on replacing 'frozen' bearings define how this guide behaves in service. Application: AA45463, AA45465, AA45990 connects the guide to specific Amana Tool uses, so it can be selected wherever these applications call for this ball bearing guide, steel.

    Catalog
    Y-14
    Product Type
    Ball Bearing Guide
    Diameter (in)
    3/4 in
    Shank Diameter (in)
    1/2 in
    Material Type
    Steel
    Supplier Pack Size
    1
    Sold In
    1
    Catalog
    Y-14
    Product Type
    Ball Bearing Guide
    Diameter (in)
    3/4 in
    Shank Diameter (in)
    1/2 in
    Material Type
    Steel
    Supplier Pack Size
    1
    Sold In
    1
    1/4 in3/8 in1/2 in5/8 in3/4 in0.865 in1-1/8 in
    1/8 in3/16 in1/4 in5/16 in1/2 in
    Amana Tool
    $20.11/Each
    Routing accessories ball bearing guides 3/4 x 1/2
    Item# AA47721 / MFR Part # 47721
    Each
    Each

    Drop Ship Item

    Please log in or register to get the expected shipment date.

    This item ships directly from the vendor. Additional freight charges may apply.

    Sold In: 1 Each

    Each

    Related Products

    Quantity
    Unit Price
    Catalog
    Sold in: 1 Each
    Y-14
    AA47701
    Mfr# 47701
    1/4" x 1/2" Steel Ball Bearing Guide
    Sold in: 1 Each
    Y-14
    AA47702
    Mfr# 47702
    3/16" x 3/8" Steel Ball Bearing Guide
    Sold in: 1 Each
    Y-14
    AA47704
    Mfr# 47704
    1/8" x 3/8" Steel Ball Bearing Guide
    Sold in: 1 Each
    Y-14
    AA47706
    Mfr# 47706
    3/16" x 1/2" Steel Ball Bearing Guide
    Sold in: 1 Each
    Y-14
    AA47708
    Mfr# 47708
    7/8" Steel Ball Bearing Guide
    Sold in: 1 Each
    AA47711
    Mfr# 47711
    Ball Bearing Guide Steel, Routing Accessories 6 mm Diameter
    Sold in: 1 Each
    Y-14
    AA47712
    Mfr# 47712
    Routing Accessories Ball Bearing Guides, 5/8" Diameter x 1/4" Inner Dia x 3/16" Height
    Sold in: 1 Each
    Y-14
    AA47714
    Mfr# 47714
    Routing Accessories Ball Bearing Guides, 3/4" Diameter x 1/4" Inner Dia x 9/32" Height
    Sold in: 1 Each
    AA47716
    Mfr# 47716
    47716 5MMx16MM ball bearing by Amana Tool
    Sold in: 1 Each
    Y-14
    AA47723
    Mfr# 47723
    1/8" x 1/4" Steel Ball Bearing Guide
    Sold in: 1 Each
    Y-14
    AA47754
    Mfr# 47754
    Steel Ball Bearing Guide 1 in x 15mm 47754