3GT Timing Pulley-Precision Machined GT Timing Pulleys for Industrial Applications
Key Specifications：Profile：GT/GT2/GT3Pitch：3mm(3GT/3MGT)Number of Teeth：CustomizedMaterial Options：Carbon steel/Aluminum alloy/Plastic/Stainless
Product Description
The 3GT timing pulley(3mm pitch GT profile) is designed for high-precision synchronous belt drives.
It is commonly widely used in variety of industry applications such as automation equipment, CNC machines, robotics, where accurate positioning, stable transmission, and low noise are required.
We provide custom-made 3GT pulleys according to drawing, samples, or technical specifications, with fast delivery and global shipping, suitable for OEM production and replacement applications.
Customization Capability
We support full customization of 3GT timing pulleys, including:
-
Tooth quantity and pitch configuration
-
Bore type: pilot bore or finished bore
-
Keyway, D-bore, set screws, Taper-Lock, QD bushing
-
Single or double flange
-
Hub design and pulley width
This allows the pulley to be precisely matched to your shaft design and operating conditions.
Technical Specification of 3GT
Transmission schematic diagram
|
PD(PITCH DIAMETER)=P*N/π P:Pitch N:Number of grooves OD(OUTSIDE DIAMETER)=PD-2PLD PLD:REFER TO CHART 1 |
|
|
Type |
Pitch |
PLD |
|
3GT |
3mm |
0.381mm |
Chart 1
Manufacturing & Quality Capability
Dimensional Control
-
Controlled outer diameter tolerance to ensure stable belt tracking. making higher system accuracy and longer life of the belt system.
-
Low Outside circus runout for smooth and quiet operation with very little vibration.
Chart 2 & 3 gives the tolerance that we followed. If you have more higher requirements, please let us know.
The allowed tolerance of the ourside circle diameter
|
OD(mm) |
Allowance Tolerance |
||||
|
HOBBING |
POWDER METALLURGY |
INJECTION |
|||
|
O.D≤25.4 |
+0.05 |
0 |
+0.05 |
-0.02 |
±0.05 |
|
25.4<O.D≤50.8 |
+0.08 |
0 |
+0.08 |
-0.04 |
±0.08 |
|
50.8<O.D≤101.6 |
+0.10 |
0 |
+0.10 |
-0.05 |
±0.10 |
|
101.6<O.D≤177.8 |
+0.12 |
0 |
+0.12 |
-0.06 |
±0.12 |
|
177.8<O.D≤304.8 |
+0.15 |
0 |
– |
– |
±0.15 |
|
304.8<O.D≤508.0 |
+0.18 |
0 |
– |
– |
– |
|
O.D>508.0 |
+0.2 |
0 |
– |
– |
– |
Chart 2
The allowance tolerance of the ourside circle runout
|
OD(mm) |
Allowance Tolerance |
||
|
HOBBING |
POWDER METALLURGY |
INJECTION |
|
|
O.D≤25.4 |
0.05 |
0.06 |
0.10 |
|
25.4<O.D≤50.8 |
0.05 |
0.12 |
0.15 |
|
50/8<O.D≤101.6 |
0.08 |
0.15 |
0.20 |
|
101.6<O.D≤177.8 |
0.10 |
0.20 |
0.25 |
|
177.8<0.D≤203.20 |
0.10 |
– |
– |
|
OD>203.20 |
0.10+0.0005(OD-203.2) |
– |
– |
Chart 3
Noted: The data of chart 2 & 3 just for reference, for specific case, please contact us in advance.
Tooth Profile Accuracy
-
Accurate GT tooth geometry to ensure proper belt meshing
-
Reduced backlash and uniform load distribution
-
Extended belt service life
Inspection Process
-
Tooth profile inspection
-
Dimensional measurement of critical features
-
Bore and others
All inspections are performed during production to ensure consistent quality and repeatability.
Performance Advantages
-
Stable synchronous transmission
-
Low vibration and low noise operation
-
Reliable performance under continuous operation
-
Suitable for high-speed and precision drive systems
Standards & Compliance
-
Manufactured according to DIN / ISO standards
-
RoHS & REACH compliant (reports available upon request)
Some Appearance Details of Finish Condition
What we can provide according to the appearance
-
Good Teeth surface status: the status of teeth can be assured through limit MAX feed rate according to different pitch of the sprocket.
-
Flange Riveting Point Quantity: By controlling the riveting points' length, width, depth and numbers to promises the riveting points strength to prevent the flange from falling off during the operation. The riveting shape is shown below for reference.
-
Tooth profile inspection: We usually use projection for the inspection showing in the picture. Using the standard tooth profile film to compare with the actual machined tooth profile. This is a Significant Character
Typical Applications
-
Industrial automation equipment
-
CNC machines and machining centers
-
Robotics and linear motion systems
-
Packaging machinery
-
Conveyor and material handling systems
-
Replacement pulleys for imported equipment
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