Product Description

Since 1984, POINTTECH, GG Tech,? is specialized in manufacturing live centers and machine tools.

GG POINTTECH is exporting to over 21 countries and continuously expanding to the whole world.?

It has an MT4 size with 60 60-degree centre. High Runout accuracy (0.003mm, TIR 0.0001?) and lifetime lubricated bearing. Max rpm 6,000.

The high-performance lip seal and backside sealing structure provide a significant waterproof functional advantage, protecting the bearing space from ingress by dirt and coolant.

It is made from drop-forged raw materials and heat-treated for enhanced strength, rigidity, and longevity. (HRc. 60?2) This GG live center is being installed on almost all of the Korean machine builders.?

MT4 CNC High Speed High Precision Live Center; Standard 60? Type

• High-speed and high-precision live center based on double angular contact bearings
• MT4 size with a 60? point (heat treatment hardness of shaft HRc 60?2)
• Accuracy guaranteed to 0.002mm TIR (0.0001)
• Excellent for CNC, grinders, and high-speed light-duty machining.
• High rpm (Up to 6,000)

Product Specifications

Dimension

[Unit: Inch]

APPLICATION PRODUCT CODE

PRODUCT CODE

STANDARD CENTER

When you place a purchase order or receive a proforma invoice, you may notice several differences in the naming on the documents.

If you ordered a BN (CNC high-speed live center) with MT4 standards, and special center, it may be shown as follows:

? Model No.: Unique Identification Number. Except for the special type center, this number can be found in our catalogue.
? Model: Product Name

How to read the Model Name on documents:

Therefore, The 4BNL30AC signifies the BN Model, which has an extended center and a carbide tip with MT4.
NOTE: The suffix rules are in the order of L30, L30A, C, and S.

SPECIAL CENTER
We have been naming the model numbers the same as the drawing numbers for special types.
Given the example below, you can understand the meaning of the model number.

K55A1-24-C014A10

? K55A1: Agent code
? 24: Drawing creation year
? C: Center
? 01: Item (It stands for the model No.)
? 4: Morse Taper Standards
? A: Drawing creation month
? 10: number of drawing revisions

If you have any questions, please feel free to contact via email: point@pointtec.com.

5 STEPS OF SELECTION GUIDE

1. Select The Morse Taper Standards
2. Select The Product model
3. Check whether your center is free from tool interference or not.
4. Check The Workpiece Hardness (Or Check if you need the center to have high hardness)
5. When you require tailored center

For example.

1. MT4
2. BN
3. Extended Type
4. HRC60?5
5. N/A

Note: You don?t have to follow the 5 steps of selection order. However, The product code is always invariably constant.

ITEMIZED CENTERS

? CARBIDE TYPE: A center with a point tip welded with carbide alloy is called a carbide tip center or simply a carbide center.
It feature the High Resistance of Wear, High Rigidity than other Standard types, Low Load Variation, and High Hardness(HRA90?5)
? 30? EXTENDED TYPE: The part from the center point angled at 30?, extended, and then inclined to a 60? angle.
? A EXTENDED TYPE: The part from the center point angled at 30?, formed a straight section, and then in inclined to a 60?
angle. The shape of the center point resembles an ?A?.

In addition to, you can consider the use of WP type(Water-Proof Live Center) which have slim body with small center head diameter. Also, It is suitable where the lubricant is sprayed than usual.

NOTE : 60-degree section of center is guaranteed the precision