To receive the most up-to-date product availability, pricing and delivery options, enter your zip code or log in to your account
Zip Code should not be blankEmail and Password should not be blank
Enter Delivery Zip Code
or
Log In
TELL US MORE
Are you currently located in California?
8 characters minimum
One number
One lowercase letter
One uppercase letter
One special character (!@#$%&*)
Password cannot contain space
Pursuant to CA SB 478, if you are located in California, Airgas cannot display your product pricing until all items have been added to your shopping cart so that we can calculate all applicable fees, including, but not limited to, shipping and handling fees.
The Milwaukee 38-50-5211 is an Original Equipment Manufacturer (OEM) spindle shaft designed for high-velocity industrial power tools. It serves as the central rotary interface that secures the tool's collet workholder and mechanically links to the primary drive system gears. This component is designated as Item #32 in standard manufacturer schematics and is engineered for use with Double Insulated (D.I.) electric die grinders and straight grinders.
Features
OEM Tolerance Matching: Matches original machine tool balancing parameters to minimize hand-arm vibration (HAV)
True Concentricity: Machined for near-zero runout to prevent premature tooth chipping on carbide attachments
Dual Bearing Journal Configuration: Machined step shoulders for press-fitting of nose and rear spindle gear bearings
High Thermal Threshold: Designed for continuous production metal-deburring and weld-blending environments
Stress Fatigue Resistance: Engine-turned profiles to minimize stress-concentration nodes at shoulder transitions
Specifications
Manufacturer: Milwaukee Electric Tool Corporation
Manufacturer Part Number (MPN): 38-50-5211
Universal Product Code (UPC): 045242103096
Zoro Identifier: G7482273
PartSelect Number: PS10127646
ERP Identification Number: ERP10127646
Grainger Part Number Compatibility: 4Z818
Total Nominal Height/Length: 5.00 Inches (127.00 mm)
Maximum Outer Diameter/Width: 0.58 Inches (14.73 mm)
Net Product Shipping Weight: 0.16 lbs (2.56 oz / 0.072 kg)
Standard Packaging Envelope: 6.00" L x 1.00" W x 1.00" H
Base Material: High-tensile, case-hardened carbon steel alloy
Surface Treatment: Precision ground finish across bearing journals
