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 the primary use of the Pentagon Motor Assembly Locknut?
It is designed to securely lock motor shafts and components on vertical and turret milling machines, ensuring stability during operation.
What material is used in the construction of this locknut?
The locknut is manufactured from hardened alloy steel, providing superior durability and resistance to deformation under high torque.
What are the available thread sizes for this locknut?
It is available in M12, M14, and M16 inner thread sizes, or their UNC equivalents, with a thread pitch ranging from 1.25 to 2.0 mm.
What is the tensile strength of the Pentagon Motor Locknut?
It features a high tensile strength of ≥ 800 MPa, ensuring reliable locking performance in heavy-duty industrial environments.
What is the outer diameter of the locknut?
The outer diameter of the locknut is 28 mm.
Does this locknut fit standard milling machine motor housings?
Yes, with a compact dimension of 100x100x50 mm, it is designed to fit standard motor housing layouts found on most vertical milling machines.
Is this locknut suitable for CNC milling machines?
Yes, it is a versatile component suitable for both manual and CNC milling machine maintenance and repair.
How should I maintain the locknut for longevity?
Keep threads clean, use a torque wrench to avoid over-tightening, and inspect regularly for wear. Applying anti-seize compound is recommended in harsh conditions.
What is the weight of the locknut?
The locknut weighs approximately 0.5 Kgs.
Does Pentagon provide a warranty for this product?
Pentagon Machines and Tools offers dependable support and quality assurance for their industrial spares. Please check your invoice for specific warranty terms.
Who should choose the Pentagon Model A-3946 Locknut?
This model is ideal for maintenance professionals and workshop owners requiring a robust, high-tensile replacement locknut for vertical or turret milling machine motor assemblies.
How does the Pentagon locknut compare to generic alternatives?
Unlike generic parts, the Pentagon locknut is engineered with hardened alloy steel and precision machining to withstand the specific vibrations and torque loads of milling operations.
Is this locknut compatible with Bridgeport milling machines?
Yes, the specifications are designed to be compatible with standard vertical and turret milling machines, including common Bridgeport-style configurations.
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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















