High Precision Low Backlash PLF90 Straight Gear Gearbox for CNC

PLF90 Straight Gear Gearbox is a high-precision spur gear gearbox featuring a compact design, high load-carrying capacity, and low-noise operation. It is specifically engineered to provide stable, efficient, and reliable power transmission for medium- and large-scale automation equipment and industrial machinery.


Description

High-Rigidity Spur Gear Transmission Structure

The PLF90 straight gear gearbox is developed for high-response motion control systems.
It adopts a precision spur gear transmission design.
Power transmission efficiency remains excellent.
Response speed is significantly improve.
It is suitable for frequent start-stop operations.
High acceleration and deceleration requirements are support.
As a PLF90 straight gear gearbox for high-speed automation transmission systems,
it features a compact structure and easy installation.
Overall equipment efficiency is enhance.

The spur gear design minimizes transmission delay.
Power delivery becomes more direct and responsive.
It is especially suitable for dynamic motion control systems.

Accurate Positioning and Efficient Power Output

The PLF90 gearbox utilizes optimized gear geometry.
Output stability is significantly improve.
Low backlash ensures precise positioning performance.
Precision motion control requirements are fully support.
As a PLF90 low backlash spur gear gearbox for servo motor applications,
it is widely used in high-accuracy equipment.
Fast and accurate positioning can be achieve.
Control error accumulation is minimize.
Production efficiency is improve.

Multiple gear ratios are available.
Different load requirements can be accommodate.
The gearbox is compatible with stepper motors and servo motors.
Flexible power matching becomes possible.

Precision Manufacturing and Long-Term Reliability

The gears are manufactured from premium alloy steel.
Carburizing and hardening processes are apply.
Gear wear resistance is significantly enhance.
Long-term load capacity is improve.
As a PLF90 straight gear gearbox for industrial robot precision motion control,
it delivers stable and reliable performance.
Critical gears undergo precision grinding processes.
Consistent meshing accuracy is ensure.

A high-precision bearing system improves structural rigidity.
Operational vibration is effectively reduce.
Running smoothness is enhance.
Every gearbox completes load performance testing.
Extended life-cycle verification is conduct.
OEM and ODM customization services are available.

Typical Applications

Industrial robots.
CNC machine tools.
Automated assembly lines.
Laser processing equipment.
Packaging machinery.
Electronics manufacturing equipment.
Material handling systems.
New energy automation equipment.

General Specifications

  • Product Name: PLF90 Straight Gear Gearbox
  • Product Type: Precision Spur Planetary Gearbox
  • Mounting Size: 90 mm standard flange
  • Transmission Structure: Multi-stage spur planetary gear design
  • Housing Material: High-strength aerospace-grade aluminum alloy
  • Output Configuration: Solid output shaft
  • Installation Method: Multi-directional mounting capability

Dimensional Specifications

  • Flange Size: 90 × 90 mm
  • Input Shaft Diameter: 14 mm
  • Output Shaft Diameter: 22 mm
  • Output Shaft Length: 45 mm
  • Pilot Diameter: Ø70 mm
  • Mounting Pattern: Standard 4-hole configuration
  • Gearbox Length: 95 mm / 115 mm / 135 mm depending on stage count

Transmission Performance

  • Gear Ratios: 3:1, 4:1, 5:1, 7:1, 10:1, 16:1, 20:1, 25:1, 35:1, 50:1, 100:1
  • Rated Output Torque: 30–210 N·m
  • Peak Torque Capacity: Up to 420 N·m
  • Mechanical Efficiency: ≥97%
  • Backlash: ≤10 arcmin
  • Maximum Input Speed: 6500 rpm
  • Recommended Operating Speed: 1000–4500 rpm
  • Radial Load Capacity: 2500 N
  • Axial Load Capacity: 1600 N

Materials and Manufacturing

  • Gear Material: Carburized 20CrMnTi alloy steel
  • Gear Processing: CNC hobbing and precision grinding
  • Gear Surface Hardness: HRC58–62
  • Surface Treatment: Anodized corrosion-resistant finish
  • Lubrication System: Fully sealed long-life lubrication
  • Bearing Type: High-precision deep groove ball bearings

Environmental Specifications

  • Operating Temperature: -10°C to +90°C
  • Storage Temperature: -30°C to +120°C
  • Protection Rating: IP64
  • Service Life: ≥25,000 hours
  • Maintenance Requirement: Lifetime maintenance-free design

Compatible Equipment

  • Nema34 stepper motors
  • 90-series closed-loop stepper motors
  • 750W–2kW servo motors
  • Precision automation transmission systems

 

Model Unit PLF090 Ratio Stage
Rated output torque N.m 60 3 1
86 4
94.5 5
64 7(8)
39.5 10
96 12 2
96 15
96 16
96 20
105.5 25
96 28(32)
105.5
96 40
105.5 50(64)
71.5 70
120 64 3
120 80
120 100
132.5 125
120 140(160)
132.5 175
120 200
132.5 250(256)
120 280(320)
132.5 350(512)
Emergency stop torque N.m 2 times Rated output torque
Nominal input speed rmp 3000
Maximum input speed rmp 6000
Maximum radial force N 1020
Maximum axial force N 850
Efficiency % Single[97%] Double[95%]
Average lifetime h 20000
Weight kg 8 1
8.9 2
9.8 3

 

Model Unit PLF090 Ratio Stage
Moment of Inertia kgcm2 0.4 3 1
0.309 4
0.291 5
0.285 7[8]
0.283 10
0.4 12
0.309 15 2
0.291 16
0.291 20
0.291 25
0.285 28[32]
0.285 35
0.2835 40
0.283 50
0.283 70[64]
0.291 64 3
0.291 80
0.291 100
0.291 125
0.291 140[160]
0.291 175
0.283 200
0.283 250[256]
0.283 280[320]
0.283 350[512]
Noise dB 65
Lubricating Synthetic grease lubrication
Levels of protection IP65