
PENTAGON NT40/NT30/R8 Milling Spindle Price in India — R8 With Bearing
High-precision spindle replacement for vertical turret milling machines ensures accurate tooling and reduced vibration during high-load operations. This direct fit assembly integrates bearings and chuck-nut for immediate installation across ISO and NT standards. • Runout tolerance ≤ 0.005–0.01 mm for superior finish • Heat-treated high-strength alloy steel for extended durability • Compatible with ISO40, NT40, NT30, and R8 machine heads • Includes hardened drawbar threads and bearing sets
Specifications
For: R8 With Bearing- Spindle Type
- R8
- Drawbar Thread
- M12x1.5 mm
- Runout
- ≤ 0.005–0.01 mm
- Installation
- Direct replacement
- Compatible Bearings
- 7207 / 6206 (varies by head design)
- Surface Hardness
- HRC 58–62
- Overall Length
- 540-600 mm ((varies by model)
- Material
- High-strength alloy steel (heat-treated)
- Finish
- Polished, hardened surface
- Weight
- 5.86 Kgs
Configurations
Click a row to switch| Variant | Drawbar Thread | Spindle Type | Compatible Bearings | Price |
|---|---|---|---|---|
| NT40/ISO40 With Bearing | M16x2.5 mm | ISO40/NT40 | 7207 / 6206 (varies by head design) | ₹24,800 |
| NT30/ISO30 With Bearing | M12x1.75 mm | ISO30/NT30 | 7207 / 6206 (varies by head design) | ₹21,900 |
| R8 With Bearing | M12x1.5 mm | R8 | 7207 / 6206 (varies by head design) | ₹20,700 |
| R8 without Bearing | M12x1.5 mm | R8 | 7207 / 6206 (varies by head design) | ₹14,500 |
| NT30/ISO30 without Bearing | M12x1.75 mm | ISO30/NT30 | 7207 / 6206 (varies as per design) | ₹15,600 |
| NT40/ISO40 without bearing | M16x2 mm | ISO40/NT40 | 7207 / 6206 (varies by head design) | ₹17,300 |
Maintenance & Care
- Regular lubrication extends bearing life and spindle performance
- Inspect runout levels periodically to ensure continued accuracy
- Store in dry environment to prevent corrosion on polished surfaces
- Follow manufacturer guidelines for bearing replacement intervals
Operational Reliability
- Maintains tight tolerances under high-speed cutting conditions
- Reduces vibration to improve surface finish on machined parts
- Engineered to withstand continuous industrial usage cycles
- Provides consistent rotational stability for precision tooling
Installation & Compatibility
- Direct replacement installation minimizes downtime during upgrades
- Complete assembly includes bearings and chuck-nut for immediate use
- Compatible with standard bearings such as 7207 / 6206 depending on head design
- Drawbar thread typically M12 or 1/2"-13 UNC for secure locking
- Typical unit weight is approximately 6.2 Kgs for logistics planning
Durable Construction
- Built from high-strength alloy steel for structural integrity
- Heat-treated surface hardness reaches HRC 58–62 for durability
- Polished, hardened surface finish minimizes friction and wear
- Overall length typically ranges from 540–600 mm for various models
Precision Performance
- Delivers runout tolerance of ≤ 0.005–0.01 mm for machining accuracy
- Compatible with ISO40/NT40 spindle types for broad machine fit
- Optimized for Vertical RAM Turret Milling Machines operations
- Ensures consistent rotational stability during high-speed cutting
More questions buyers ask
What is a milling machine spindle?
A milling machine spindle is a crucial component that holds and rotates the cutting tool. Its precision is key to the accuracy and surface finish of the machined part. PENTAGON spindles are made from high-strength alloy steel for maximum durability.
What are the different types of spindle tapers available?
We offer three main taper types for PENTAGON milling machines: NT40 (also known as ISO40), NT30 (ISO30), and R8. The choice depends on your specific machine model and the tooling you use.
What is the importance of runout tolerance in a spindle?
Runout tolerance measures how accurately the spindle rotates. A lower runout (≤ 0.005–0.01 mm for our spindles) means less wobble, resulting in higher machining accuracy and a smoother surface finish.
Is the spindle assembly a direct replacement?
Yes, these are designed as direct-fit replacements for PENTAGON vertical turret milling machines, which minimizes downtime during installation.
Does the spindle come with bearings?
We offer variants both with and without pre-installed bearings. You can choose the option that best suits your needs and budget.
What are the compatible bearing types?
The spindles are typically compatible with standard bearing sets like 7207 and 6206, though this can vary by the specific milling head design.
How do I maintain a milling spindle?
Regular lubrication of the bearings, periodic inspection of runout, and keeping the spindle in a dry environment to prevent corrosion are key maintenance steps to ensure a long operational life.
Who should choose the NT40/ISO40 Spindle with Bearing?
This option is ideal for workshops that need a robust, heavy-duty spindle for high-load applications and want the convenience of a ready-to-install assembly with pre-fitted bearings.
Who should choose the NT30/ISO30 Spindle with Bearing?
The NT30 spindle with bearings is a versatile choice for medium-duty milling. It's perfect for users looking for a balance of performance, value, and easy installation.
Who should choose the R8 Spindle with Bearing?
The R8 spindle with bearings is a popular and cost-effective solution for smaller turret mills and general-purpose machining. It's great for repair shops and smaller fabrication setups.
Who should choose the R8 Spindle without Bearing?
This is our most economical option, designed for customers who have their own bearing sets or prefer to install custom bearings. It offers maximum flexibility at the lowest price point.
Who should choose the NT30/ISO30 Spindle without Bearing?
This variant is for technicians who require an NT30 taper but want the flexibility to use their own specific or existing bearing sets, combining performance with customization.
Who should choose the NT40/ISO40 Spindle without Bearing?
Choose this option if you need a heavy-duty NT40 spindle for specialized, high-load applications and you have your own preferred bearing sets to install.
What is the main difference between NT40, NT30, and R8 spindles?
The primary difference is the taper size and design. NT40 is the largest and most robust, for heavy-duty work. NT30 is a mid-range standard. R8 is smaller and very common in smaller turret mills. Your choice depends on your machine's requirements.
Should I buy a spindle with or without bearings?
If you prioritize convenience and need a quick, reliable replacement, choose the 'With Bearing' option. If you are on a tighter budget or have specific bearing preferences, the 'without Bearing' option provides flexibility and cost savings.
Which PENTAGON spindle is the most affordable?
The R8 spindle without Bearing is the most budget-friendly option, offering a reliable spindle while allowing you to source your own bearings.
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Full description
High-precision spindle replacement for vertical turret milling machines ensures accurate tooling and reduced vibration during high-load operations. This direct fit assembly integrates bearings and chuck-nut for immediate installation across ISO and NT standards. • Runout tolerance ≤ 0.005–0.01 mm for superior finish • Heat-treated high-strength alloy steel for extended durability • Compatible with ISO40, NT40, NT30, and R8 machine heads • Includes hardened drawbar threads and bearing sets