Pentagon Motor Assembly Locknut for Vertical Milling Machine Model A-3946
Motor Assembly Locknut for Vertical Milling Machine secures motor components in vertical and turret milling setups. Constructed from hardened alloy steel with a tensile strength of ≥ 800 MPa, it ensures reliable performance under heavy loads. • Inner Thread Size: M12 / M14 / M16 (or UNC equivalent) • Outer Diameter: 28 mm • Nut Thickness: 12.6 mm • Dimension: 100x100x50 mm
Specifications
For: Model A-3946- Product Name
- Motor Locknut
- Model
- A-3946
- Material
- Hardened Alloy Steel
- Application
- Vertical / Turret Milling Machine Motor Assembly
- Inner Thread Size
- M12 / M14 / M16 (or UNC equivalent)
- Outer Diameter
- 28 mm
- Nut Thickness
- 12.6 mm
- Thread Pitch
- 1.25–2.0 mm
- Tensile Strength
- ≥ 800 MPa
- Dimension
- 100x100x50 mm
- Weight
- 0.5 Kgs
Installation & Maintenance Tips
- Clean threads before installation to prevent cross-threading
- Use appropriate torque wrenches to avoid over-tightening
- Inspect threads regularly for wear or damage
- Apply anti-seize compound if operating in harsh conditions
- Replace immediately if signs of deformation are visible
- Store in dry environment to preserve material integrity
Ideal Applications
- Securing motor shafts on vertical milling machines
- Locking components on turret milling machine assemblies
- Industrial machining environments requiring high stability
- Heavy-duty manufacturing and metalworking facilities
- Maintenance repairs for spindle motor retention systems
- Upgrading existing machinery with stronger locknut solutions
Material & Construction Quality
- Manufactured from hardened alloy steel for superior durability
- Hardened construction resists deformation under high torque loads
- Engineered to withstand vibration common in milling operations
- Corrosion-resistant surface treatment extends service life
- Precision machining ensures consistent thread engagement
- Robust build quality minimizes risk of stripping during tightening
Key Features
- Designed for vertical and turret milling machine motor assemblies
- Available in M12, M14, M16 inner thread sizes or UNC equivalents
- Outer diameter measures 28 mm with a nut thickness of 12.6 mm
- Thread pitch ranges from 1.25 to 2.0 mm for versatile compatibility
- High tensile strength of ≥ 800 MPa ensures reliable locking performance
- Compact dimension of 100x100x50 mm fits standard motor housing layouts
- Weight is approximately 0.5 Kgs for easy handling and installation
More questions buyers ask
What is a motor assembly locknut used for in a vertical milling machine?
It is used to securely lock the motor shaft or spindle components in place, ensuring stability and preventing vibration-related loosening during heavy-duty machining.
What material is the Pentagon motor locknut made of?
It is manufactured from high-grade hardened alloy steel with a tensile strength of ≥ 800 MPa for maximum durability.
What are the dimensions of this locknut?
The locknut has an outer diameter of 28 mm, a thickness of 12.6 mm, and is compatible with M12, M14, or M16 thread sizes.
Is this locknut compatible with Bridgeport milling machines?
Yes, it is designed as a high-quality replacement part for standard vertical and turret milling machine motor assemblies, including Bridgeport-style machines.
What is the thread pitch range for this locknut?
The locknut supports a thread pitch range of 1.25 mm to 2.0 mm.
Does the locknut come with a warranty?
Pentagon provides standard manufacturer warranty support on all machine spares. Please contact our support team for specific terms.
Can I get a GST invoice for this purchase?
Yes, all purchases on Gearo include a valid GST invoice for your business accounting requirements.
How do I install the motor locknut?
Ensure threads are clean, use a torque wrench to avoid over-tightening, and apply anti-seize compound if operating in harsh conditions.
What is the weight of the locknut?
The unit weighs approximately 0.5 Kgs, making it easy to handle and install.
Does it resist corrosion?
Yes, it features a corrosion-resistant surface treatment to extend its service life in industrial environments.
Who should choose the Model A-3946 locknut?
The Model A-3946 is ideal for maintenance professionals and workshop owners looking for a robust, high-tensile replacement for worn-out motor assembly locknuts on vertical mills.
How does this compare to generic locknuts?
Unlike generic hardware, this Pentagon locknut is precision-engineered for milling machine vibrations, featuring ≥ 800 MPa tensile strength and hardened alloy steel construction.
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Full description
Motor Assembly Locknut for Vertical Milling Machine secures motor components in vertical and turret milling setups. Constructed from hardened alloy steel with a tensile strength of ≥ 800 MPa, it ensures reliable performance under heavy loads. • Inner Thread Size: M12 / M14 / M16 (or UNC equivalent) • Outer Diameter: 28 mm • Nut Thickness: 12.6 mm • Dimension: 100x100x50 mm