PLF90 Straight Gear Gearbox | Gearbox Solutions

Description

The PLF90 straight gear gearbox delivers precise and responsive power transmission for CNC equipment and industrial automation. Its high-rigidity structure supports demanding motion control applications.

SHENLI designs this gearbox for systems that require accurate positioning, low backlash, efficient transmission, and reliable operation. The compact design also simplifies installation and integration with compatible motors.

High-Rigidity Spur Gear Transmission

The PLF90 uses a precision spur gear transmission structure. Its direct gear engagement helps deliver responsive power during dynamic motion.

The design suits equipment with frequent start-stop cycles. It also supports applications that require rapid acceleration and deceleration.

The compact housing helps reduce installation space. It allows engineers to integrate the PLF90 straight gear gearbox into various automated systems.

Low Backlash for Precise Motion Control

The PLF90 low backlash gearbox uses optimized gear geometry for accurate power transmission. Low backlash helps improve positioning accuracy and reduce motion errors.

This performance makes the gearbox suitable for precision CNC equipment, servo-driven machinery, and automated production systems.

Multiple gear ratios allow users to match the gearbox with different motor and load requirements. The PLF90 can work with both stepper motors and servo motors.

Precision Gears for Reliable Transmission

SHENLI manufactures the gears from high-quality alloy steel. Carburizing and hardening processes improve surface hardness and wear resistance.

Critical gears can undergo precision grinding to maintain consistent tooth geometry and meshing accuracy.

This manufacturing approach helps the PLF90 straight gear gearbox maintain stable transmission performance under continuous industrial operation.

High Rigidity and Smooth Operation

A precision bearing system improves overall structural rigidity. The reinforced structure helps control vibration during operation.

The result is smoother power transmission and more stable motion control.

SHENLI tests each gearbox for load performance before shipment. Extended lifecycle verification also helps evaluate long-term operating reliability.

Flexible Gear Ratios and Motor Compatibility

Different automation systems require different transmission ratios. SHENLI provides multiple gear ratio options for varied load and speed requirements.

The PLF90 gearbox supports compatibility with:

Stepper motors
Servo motors
CNC drive systems
Automated motion platforms
Precision positioning equipment

This flexibility allows engineers to select a suitable transmission configuration for their machine design.

PLF90 Gearbox for CNC and Automation

The PLF90 straight gear gearbox suits applications that require compact dimensions and precise motion transmission.

Typical applications include:

Its low-backlash performance makes it particularly suitable for equipment that requires repeatable positioning and responsive motion control.

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