China OEM Far-210 5 Axis Indexing Rotary Table Worm and Worm Gear CZPT Made gear ratio calculator

Product Description

Item/Model UNIT FAR(s)-125/125B FAR(s)-170A FAR(s)-170/FAR(s)-170B FAR(s)-210
Table Diameter MM ø125 ø170 ø170 ø210
Diameter of Table Central Hole MM ø35H7 ø67 ø67 ø67
Inner Diameter of Mandrel Sleeve MM ø40H7 ø40H7 ø40H7
Diameter of Center Through Hole MM ø25 ø40 ø40 ø40
Table Height (Horizontal) MM 215 245 270 270
Table T-slot Width MM 12H7 12H7 12H7 12H7
Xihu (West Lake) Dis. Block Width MM 14h7 18h7 18h7 18h7
Axis Rotation Tilt(-30°~+120°) Rotation Tilt ±100º Rotation Tilt ±100º Rotation Tilt ±100º
Min. Increment deg. 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001
InHangZhou Precision(while tilt 0°~+90°) sec. 40 60 *¹ 20 60 *¹ 20 60 *¹ 20 60 *¹
Repeatability sec. 6 8 6 8 6 8 6 8
Clamping System (Pneumatic) kgf/cm² 6 6 6 6 6 6 6 6 / Hyd.35 (optional)
Clamping Torque kgf·m 13 31 25 31 31 31 31 31 / Hyd.55
Servo Motor Model FANUC Taper/Straight shaft αis4/βis4 αiF4 / ßiS8 αiS4 / ßiS4 αiF4 / ßiS8 αiF4 / ßiS8 αiF8 / αiS12 / ßiS12 αiF4 / ßiS8 αiF8 / αiS12 / ßiS12
MITSUBISHI Taper/Straight shaft HG/HF-75/105 HG/HF-54/104  HG/HF-75/105 HG/HF-54/104 HG/HF-54/104 HG/HF-104 HG/HF-54/104 HG/HF-104
Speed Reduction Ratio 1:60 1:90 1:72 1:120 / CZPT 1:90 1:90 1:90 1:90 1:90
Max. Rotation Rate of Table (Calculate with Fanuc α Motor) r.p.m 44.4 *(33.3) 44.4 *(33.3) 33.3 *(33.3) 33.3 *(16.6) 33.3 *(33.3) 33.3 *(16.6) 33.3 *(33.3) 33.3 *(16.6)
Allowable Inertia Load Capacity (Horizontal) kg.cm.sec² 0.97 2.2 2.7 4.13
Allowable Workpiece Load 0° Horizontal kg 50 60 75 75
0°~90°Tilt kg 35 40 50 50
Allowable Load(with Rotary Table Clamping) F kgf 400 600 750 750
FxL kgf·m 31 31 31 Pne.31 / Hyd.55
FxL kgf·m 13 25 31 31
Driving Torque(Rotary axis) kgf·m 9 *(3.7) 18 *(14.6) 18 *(14.6) 18 *(14.6)
Net Weight (servo motor excluded) kg 97/- 125 153 160

 

Item/Model Unit FAR(s)-100SN/FAR(s)-160SN(single-arm type)
Table Diameter mm Ø 100 / Ø 160
Diameter of Table Central Hole mm Ø 35H7x30 deep
Inner Diameter of Mandrel Sleeve mm _
Diameter of Center Through Hole mm Ø25
Table Height (Horizontal) mm 230
Table T-slot Width mm 12H7
Xihu (West Lake) Dis. Block Width mm 18h7
Axis Rotation Tilt ±110º
Min. Increment deg. 0.001 0.001
InHangZhou Precision sec. 40 60
Repeatability sec. 4 8
Clamping System (Hydraulic) kg/cm Pneumatic 5 Hydraulic 35
Clamping Torque kg-m 13 70
Servo Motor Model FANUC Straight Shaft αiS4 / ßiS4 αiF8 / ßiS8
MITSUBISHI Straight Shaft HF-KP43JW04-S6 / HG-56 HF / HG-154
Speed Reduction Ratio 1:60 1:120
Max. Rotation Rate of Table (Calculate with Fanuc α Motor) r.p.m 44.4(33.3) 16.6(11.1)
Allowable Inertia Load Capacity (Horizontal) kg.cm.sec 0.31(Ø100SN) / 0.8(Ø160SN)
Allowable Workpiece Load 0º Horizontal kg 25
0º~90º Tilt kg 20
Allowable Load(with Rotary Table Clamping) F kgf 600
FxL kgf.m 25
FxL kgf.m 13
Strength of worm gears (Rotary axis) kg.m 9(3.7)
Net Weight (servo motor excluded) kg 116

After-sales Service: Video Technical Support, Online Support
Warranty: 1 Year
Logo Printing: with Logo Printing
Size: Middle
Customized: Customized
Type: Base

worm gear

How do you maintain and service a worm gear?

Maintaining and servicing a worm gear is essential to ensure its optimal performance, reliability, and longevity. Regular maintenance helps identify and address potential issues before they escalate, minimizes wear, and extends the lifespan of the gear system. Here are some key steps involved in maintaining and servicing a worm gear:

  • Inspection: Conduct routine visual inspections of the worm gear system to check for any signs of wear, damage, or misalignment. Inspect the gear teeth, bearings, housings, and lubrication system. Look for indications of excessive wear, pitting, chipping, or abnormal noise during operation.
  • Lubrication: Ensure that the worm gear system is properly lubricated according to the manufacturer’s recommendations. Regularly check the lubricant levels, cleanliness, and viscosity. Monitor and maintain the lubrication system, including oil reservoirs, filters, and seals. Replace the lubricant at recommended intervals or if it becomes contaminated or degraded.
  • Tighten fasteners: Over time, vibrations and operational forces can cause fasteners to loosen. Regularly check and tighten any bolts, screws, or clamps associated with the worm gear system. Be cautious not to overtighten, as it may lead to distortion or damage to the gear components.
  • Alignment: Check the alignment of the worm gear system periodically. Misalignment can cause excessive wear, increased friction, and reduced efficiency. Adjust and realign the gears if necessary to ensure proper meshing and minimize backlash.
  • Cleaning: Keep the worm gear system clean and free from debris, dirt, or contaminants. Regularly remove any accumulated dirt or particles that may affect the gear performance. Use appropriate cleaning methods and solvents that are compatible with the gear materials.
  • Load monitoring: Monitor the load conditions of the worm gear system. Ensure that the gear is not operating beyond its rated capacity or encountering excessive shock loads. If needed, consider implementing load monitoring devices or systems to prevent overloading and protect the gear system.
  • Periodic inspection and testing: Schedule periodic comprehensive inspections and functional testing of the worm gear system. This may involve disassembling components, checking for wear, measuring gear backlash, and evaluating overall performance. Identify and address any issues promptly to prevent further damage or failure.
  • Professional servicing: For complex or critical applications, it may be beneficial to involve a professional service provider or gear specialist for more extensive maintenance or repairs. They can offer expertise in diagnosing issues, performing advanced inspections, and conducting specialized repairs or replacements.

It’s important to follow the manufacturer’s recommendations and guidelines for maintaining and servicing the specific worm gear system. Adhering to proper maintenance practices helps ensure the gear’s optimal performance, reduces the risk of unexpected failures, and maximizes its operational lifespan.

worm gear

How do you calculate the efficiency of a worm gear?

Calculating the efficiency of a worm gear involves analyzing the power losses that occur during its operation. Here’s a detailed explanation of the process:

The efficiency of a worm gear system is defined as the ratio of output power to input power. In other words, it represents the percentage of power that is successfully transmitted from the input (worm) to the output (worm wheel) without significant losses. To calculate the efficiency, the following steps are typically followed:

  1. Measure input power: Measure the input power to the worm gear system. This can be done by using a power meter or by measuring the input torque and rotational speed of the worm shaft. The input power is usually denoted as Pin.
  2. Measure output power: Measure the output power from the worm gear system. This can be done by measuring the output torque and rotational speed of the worm wheel. The output power is usually denoted as Pout.
  3. Calculate power losses: Determine the power losses that occur within the worm gear system. These losses can be classified into various categories, including:
    • Mechanical losses: These losses occur due to friction between the gear teeth, sliding contact, and other mechanical components. They can be estimated based on factors such as gear design, materials, lubrication, and manufacturing quality.
    • Bearing losses: Worm gears typically incorporate bearings to support the shafts and reduce friction. Bearing losses can be estimated based on the bearing type, size, and operating conditions.
    • Lubrication losses: Inadequate lubrication or inefficient lubricant distribution can result in additional losses. Proper lubrication selection and maintenance are essential to minimize these losses.
  4. Calculate efficiency: Once the power losses are determined, the efficiency can be calculated using the following formula:

Efficiency = (Pout / Pin) * 100%

The efficiency is expressed as a percentage, indicating the proportion of input power that is successfully transmitted to the output. A higher efficiency value indicates a more efficient gear system with fewer losses.

It is important to note that the efficiency of a worm gear can vary depending on factors such as gear design, materials, lubrication, operating conditions, and manufacturing quality. Additionally, the efficiency may also change at different operating speeds or torque levels. Therefore, it is advisable to consider these factors and conduct efficiency calculations based on specific gear system parameters and operating conditions.

worm gear

Are there different types of worm gears available?

Yes, there are different types of worm gears available to suit various applications and requirements. Here are some of the commonly used types:

Single Enveloping Worm Gear:

The single enveloping worm gear, also known as a cylindrical worm gear, has cylindrical teeth on the worm wheel that mesh with the helical thread of the worm. The teeth of the worm wheel wrap around the worm in a single enveloping manner. This design provides better contact and load distribution, resulting in higher load-carrying capacity and smoother operation. Single enveloping worm gears are commonly used in heavy-duty applications where high torque transmission is required.

Double Enveloping Worm Gear:

The double enveloping worm gear is a specialized type of worm gear that provides even greater load-carrying capacity compared to the single enveloping design. In a double enveloping worm gear, both the worm and the worm wheel have curved tooth profiles. The teeth of the worm wrap around the worm wheel while the teeth of the worm wheel wrap around the worm. This double enveloping action increases the contact area, improves load distribution, and enhances the gear’s efficiency. Double enveloping worm gears are used in applications that demand high torque and precision, such as aerospace and defense industries.

Non-enveloping Worm Gear:

The non-enveloping worm gear, also known as a non-throated worm gear, has a worm wheel with teeth that do not fully wrap around the worm. Instead, the worm wheel has straight or slightly curved teeth that engage with the helical thread of the worm. Non-enveloping worm gears are simpler in design and less expensive to manufacture compared to enveloping worm gears. They are commonly used in applications with moderate loads and where cost is a consideration.

Self-locking Worm Gear:

Self-locking worm gears are designed with a specific helix angle of the worm’s thread to provide a self-locking effect. This means that when the worm is not actively driving the worm wheel, the worm wheel is prevented from rotating backward and can hold its position securely. Self-locking worm gears find applications in systems where holding position or preventing backdriving is crucial, such as elevators, lifts, and certain industrial machinery.

These are just a few examples of the different types of worm gears available. The choice of worm gear type depends on factors such as the application requirements, load capacity, efficiency, and cost considerations.

China OEM Far-210 5 Axis Indexing Rotary Table Worm and Worm Gear CZPT Made gear ratio calculatorChina OEM Far-210 5 Axis Indexing Rotary Table Worm and Worm Gear CZPT Made gear ratio calculator
editor by CX 2023-09-04