Description
The Ammco 3101 and 4101 Arbor Nut (903102) is a vital component for ensuring precise and secure operation of your Ammco brake lathe. Specifically engineered to work with Ammco’s 3101 and 4101 arbors, this genuine replacement part plays a critical role in firmly mounting brake rotors and drums for accurate machining. Its design ensures proper alignment and stability, which is essential for producing smooth, even surfaces on brake components, ultimately contributing to safer and more effective brake performance.
KEY FEATURES AND BENEFITS:
- Precise Component Securing: Designed to firmly hold brake rotors and drums onto the lathe arbor, preventing movement during the machining process for accurate resurfacing.
- Essential Ammco Compatibility: Specifically made for Ammco 3101 and 4101 arbors, which are standard with numerous Ammco brake lathe models, ensuring a perfect fit and function.
- Restores Lathe Performance: Replacing a worn or damaged arbor nut helps restore the original stability and precision of your brake lathe, leading to better machining results and improved brake service quality.
- Reliable Operation: Contributes to the overall stability of the brake lathe setup, minimizing vibrations and ensuring a smooth cutting action for consistent brake component finishing.
- Genuine Replacement Part: As an original Ammco part (or direct equivalent), it guarantees compatibility and performance aligned with manufacturer specifications for your valuable equipment.
SPECIFICATIONS:
- Part Number: 903102
- UPC: 667420053292
- Compatibility: Ammco 3101 Arbor, Ammco 4101 Arbor
- Thread Type: Unified National Coarse (UNC)
- Inside Thread Size: M12
- Fastener Type: Hex
- Item Weight: 0.4 pounds
- What is included when purchased: 1 Ammco 903102 Arbor Nut
HOW TO USE:
- Preparation: Ensure your Ammco brake lathe is powered off and the work area is clear. Select the correct Ammco 3101 or 4101 arbor for the brake component you intend to machine.
- Mounting the Component: Slide the brake rotor or drum onto the appropriate end of the lathe arbor.
- Install Arbor Nut: Thread the Ammco 903102 Arbor Nut onto the arbor, ensuring the component is snug against the centering cone or adapter.
- Tighten Securely: Hand-tighten the arbor nut until the brake component is firmly secured and no play is evident. Depending on your lathe model, you may then use a specialized wrench or lever to further tighten it to the recommended torque specifications if required, to ensure absolute stability during operation.
- Verify Stability: Before beginning the machining process, gently try to move the brake component to confirm it is completely stable and cannot shift.
BENEFITS OF USING AMMCO 3101 AND 4101 ARBOR NUT (903102):
- Enhances machining accuracy by maintaining component rigidity.
- Extends the lifespan of brake lathe arbors by providing proper clamping force.
- Contributes to safer brake lathe operation by preventing workpiece slippage.
- Simplifies the process of mounting and dismounting brake components.
- Supports the production of consistent, high-quality brake resurfacing results.
FEATURES:
- Designed for secure fastening of brake components.
- Precision-threaded for reliable engagement with arbors.
- Engineered to withstand repeated use in demanding shop environments.
- Key component for precise brake lathe functionality.
- Direct replacement for worn or lost original parts.





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