Pentagon Mill Bush Nut for Lead Screw | Price in India — Longitudinal/X axis-D1819
Precision copper alloy bush nut and brass feed nut for vertical milling machine lead screw nut replacement. Engineered to minimize backlash and ensure smooth axis movement in industrial vertical mill accessories. • Compatible with Bridgeport-style milling machines • Acme trapezoidal thread profile for durability • Solid brass construction resists wear • 5 TPI pitch matches standard feed screws
Specifications
For: Longitudinal/X axis-D1819- Product Name
- Box Nut for Lead screw Z axis
- Model
- C-0104
- Machine Type
- Vertical Mill / Turret Mill / Bridgeport-Style Milling Machine M3/M4
- Material
- Solid Brass
- Color
- Golden Yellow
- Thread Type
- Acme / Trapezoidal
- Thread Direction
- Right-Hand
- Top Diameter (Nut OD)
- 42 mm
- Flange Diameter
- 73 mm
- Body Diameter Above Flange
- 44 mm
- Overall Height
- 56 mm
- Flange Holes
- 3 holes
- Pitch
- 5 TPI
- Internal Thread Diameter
- 32 mm
- Total Height
- 37-42 mm
- Max Diameter
- 62.45 mm
- Outer diameter
- 38.9 mm
- Packing Size
- 100x100x80 mm
- Weight
- 1.5 Kgs
Configurations
Click a row to switch| Variant | Price |
|---|---|
| Z-Axis NUT C-0104 | ₹8,200 |
| Longitudinal/X axis-D1819 | ₹7,200 |
| Cross Nut-D2425 | ₹7,200 |
Features:
- High-precision internal thread for smooth motion
- Heavy-duty construction withstands vertical machine load
- Corrosion-resistant copper alloy
- Low lubricity requirement, long lifespan
- Stable flange design with multiple mounting holes
- Compatible with Bridgeport-type milling machines
Compatibility:
- Suitable for Bridgeport-type Vertical Milling Machines
- Compatible with most M1TR, Turret, and Universal Milling Machines using a 42–44 mm bushing seat
- Fits standard Z-axis lead screw assemblies with matching threaded bore
- Can be used as a replacement nut for worn or damaged Z-axis screw bushings
- Works with both manual and power-feed Z-axis systems on conventional milling machines
- Compatible with various Taiwan- and India-made Bridgeport clone machines
Advantages:
- Reduces backlash and increases machine precision
- Ensures smooth vertical movement of the Z-axis
- Easy to install as an OEM replacement
- Highly durable for long-term operation
- Improves machine accuracy in milling operations
Applications:
- Z-Axis Lead Screw Assembly
- Knee Elevation Screw
- Quill Vertical Feed Assembly
- Milling Machine Restoration / Maintenance
- Accurate height positioning systems
Description
This Z-Axis Screw Copper/Brass Nut is a high-precision lead screw nut designed for vertical and turret milling machines. It ensures smooth, backlash-free vertical movement of the quill or knee, depending on the machine design. Made from premium high-strength copper/brass alloy, it offers excellent wear resistance, low friction, and long operating life.
More questions buyers ask
What is a lead screw bush nut?
A lead screw bush nut is a critical component in a milling machine's axis drive system. It engages with the lead screw, converting rotary motion into precise linear movement of the machine's table (X and Y axes) or knee (Z axis).
What are these Pentagon bush nuts made of?
These nuts are constructed from high-quality, corrosion-resistant solid brass and copper/brass alloys. This material choice ensures durability, low friction, and resistance to wear for long-term precision.
What is the function of a bush nut in a milling machine?
Its primary function is to translate the rotation of a lead screw into smooth, accurate linear motion for the machine's axes. A high-quality nut minimizes backlash, which is crucial for machining accuracy.
What are the signs of a worn-out lead screw nut?
Signs of a worn nut include excessive backlash (play or slop in an axis), difficulty in making precise adjustments, unusual noises during axis movement, and visible thread wear on the old nut.
What is backlash and how does this part help reduce it?
Backlash is the 'play' or gap between the lead screw and nut threads. As a nut wears, this gap increases, leading to lost motion and inaccuracy. Replacing a worn nut with a new, precision-machined one like this restores a tight fit, significantly reducing backlash.
Are these nuts compatible with Bridgeport-style milling machines?
Yes, these parts are designed to be compatible with many Bridgeport-type and similar vertical turret milling machines. However, always verify the dimensions (diameters, pitch) against your machine's specific requirements.
What is the thread type and pitch of these nuts?
These nuts feature a standard Acme / Trapezoidal thread profile with a 5 TPI (Threads Per Inch) pitch, which is common for many vertical milling machine lead screws.
What are the benefits of using a brass alloy nut?
Brass is an ideal material because it is strong enough to be durable but softer than the steel lead screw. This 'sacrificial' design means the less expensive nut wears out over time, protecting the more expensive lead screw from wear.
How do I install this replacement nut?
Installation typically involves disassembling the relevant axis (X, Y, or Z), removing the old, worn-out nut, and replacing it with the new one. You should ensure proper alignment and lubrication during reassembly. Professional installation is recommended if you are unsure.
Who should choose the Z-Axis NUT C-0104?
Choose the Z-Axis NUT C-0104 if you need to replace the bush nut for the vertical movement of your milling machine's knee. It is specifically designed for the Z-axis lead screw assembly.
Who should choose the Longitudinal/X-axis-D1819 nut?
Select the Longitudinal/X-axis-D1819 nut for the table's horizontal (left-right) movement. This part addresses backlash and wear in the X-axis power feed.
Who should choose the Cross Nut-D2425 for the Y-axis?
The Cross Nut-D2425 is for the table's cross-feed (in-out) movement. It has a left-hand thread and is the correct choice for replacing a worn nut on the Y-axis lead screw.
What is the main difference between the Z-axis, X-axis, and Y-axis nuts?
The primary differences are their specific application and thread direction. The Z-axis nut is for vertical movement, the X-axis for longitudinal, and the Y-axis for cross-feed. The Y-axis nut (Cross Nut-D2425) has a left-hand thread, while the X-axis nut has a right-hand thread.
Are the X-axis and Y-axis nuts interchangeable?
No, they are not interchangeable. The X-axis nut (Longitudinal/X axis-D1819) has a right-hand thread, while the Y-axis nut (Cross Nut-D2425) has a left-hand thread to ensure the handwheel directions correspond to standard machine operation.
Which nut controls the vertical movement of the machine?
The Z-Axis NUT C-0104 is the component responsible for controlling the precise vertical movement of the milling machine's knee.
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Full description
Precision copper alloy bush nut and brass feed nut for vertical milling machine lead screw nut replacement. Engineered to minimize backlash and ensure smooth axis movement in industrial vertical mill accessories.
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• Compatible with Bridgeport-style milling machines • Acme trapezoidal thread profile for durability • Solid brass construction resists wear • 5 TPI pitch matches standard feed screws