Planetary servo-gearbox MYB-E series

coaxialsolid-shaftlow-backlash

Introduction
The HONPINE MYB-E Series precision planetary gearbox is engineered for medium and large industrial machinery that require high torque capacity, accurate positioning and sustained operation. Available in six frame sizes (70–235 mm), it covers gear ratios from 3:1 to 100:1 and rated output torque from 40 N·m to 2000 N·m. The design provides high torsional rigidity, shock resistance and efficient torque transmission.

Features

• Backlash: ≤5 arcmin (single-stage); ≤7 arcmin (two-stage)
• High torsional rigidity and shock resistance
• Smooth motion and precise positioning, suitable for servo motor systems
• High efficiency: ≥97% for ratios 3–10:1; ≥94% for ratios 12–100:1
• IP65 protection and synthetic grease lubrication

Applications
Designed for servo and motion-control systems; commonly used in packaging machinery, conveyor systems, woodworking equipment, material handling and industrial automation where reliable, repeatable torque transmission is required.

Specification (table excerpt presented row by row)
Specification | Unit | Stages | Gear Ratio¹ | MYB-E070 | MYB-E090 | MYB-E120 | MYB-E155 | MYB-E205 | MYB-E235
Rated Output Torque T₂N | N·m | 1 | 3 | 55 | 130 | 208 | 342 | 588 | 1,140
| N·m | 1 | 4 | 50 | 140 | 290 | 542 | 1,050 | 1,700
| N·m | 1 | 5 | 60 | 160 | 330 | 650 | 1,200 | 2,000
| N·m | 1 | 6 | 55 | 150 | 310 | 600 | - | -
| N·m | 1 | 7 | 50 | 140 | 300 | 550 | 1,100 | 1,800
| N·m | 1 | 8 | 45 | 120 | 260 | 500 | 1,000 | 1,600
| N·m | 1 | 10 | 40 | 100 | 230 | 450 | 520 | 1,220
| N·m | 2 | 12 | 55 | 130 | 208 | 342 | - | -
| N·m | 2 | 15 | 55 | 130 | 208 | 342 | 588 | 1,140
| N·m | 2 | 20 | 50 | 140 | 290 | 542 | 1,050 | 1,700
| N·m | 2 | 25 | 60 | 160 | 330 | 650 | 1,200 | 2,000
| N·m | 2 | 30 | 50 | 130 | 208 | 342 | 1,200 | 2,000
| N·m | 2 | 35 | 60 | 160 | 330 | 650 | 1,200 | 2,000
| N·m | 2 | 40 | 50 | 140 | 290 | 542 | 1,200 | 2,000
| N·m | 2 | 50 | 60 | 160 | 330 | 650 | 1,200 | 2,000
| N·m | 2 | 60 | 55 | 150 | 310 | 600 | - | -
| N·m | 2 | 70 | 50 | 140 | 300 | 550 | 1,100 | 1,800
| N·m | 2 | 80 | 45 | 120 | 260 | 500 | 1,000 | 1,600
| N·m | 2 | 100 | 40 | 100 | 230 | 450 | 520 | 1,220
Maximum Output Torque T₂B | N·m | 12 | 3~100 | 3 × Rated Output Torque (for all frame sizes)
Rated Input Speed n₁ | rpm | 12 | 3~100 | MYB-E070: 5,000 | MYB-E090: 4,000 | MYB-E120: 4,000 | MYB-E155: 3,000 | MYB-E205: 3,000 | MYB-E235: 2,000
Maximum Input Speed n₁B | rpm | 12 | 3~100 | MYB-E070: 10,000 | MYB-E090: 8,000 | MYB-E120: 8,000 | MYB-E155: 6,000 | MYB-E205: 6,000 | MYB-E235: 4,000
Backlash | arcmin | 1 | 3~10 | MYB-E070–E235 (single-stage): ≤5
Backlash | arcmin | 2 | 12~100 | MYB-E070–E235 (two-stage): ≤7
Torsional Rigidity | N·m/arcmin | 12 | 3~100 | MYB-E070: 7 | MYB-E090: 14 | MYB-E120: 25 | MYB-E155: 50 | MYB-E205: 145 | MYB-E235: 225
Permissible Radial Load F₂rB² | N | 12 | 3~100 | MYB-E070: 1,530 | MYB-E090: 3,250 | MYB-E120: 6,700 | MYB-E155: 9,400 | MYB-E205: 14,500 | MYB-E235: 50,000
Permissible Axial Load F₂a1B² | N | 12 | 3~100 | MYB-E070: 630 | MYB-E090: 1,300 | MYB-E120: 3,000 | MYB-E155: 4,000 | MYB-E205: 6,200 | MYB-E235: 35,000
Permissible Axial Load F₂a2B² | N | 12 | 3~100 | MYB-E070: 765 | MYB-E090: 1,625 | MYB-E120: 3,350 | MYB-E155: 4,700 | MYB-E205: 7,250 | MYB-E235: 25,000
Service Life | hr | 12 | 3~100 | 20,000* (typical life expectation)
Efficiency η | % | 1 | 3~10 | ≥97% (3–10:1)
Efficiency η | % | 2 | 12~100 | ≥94% (12–100:1)
Weight | kg | 1 | 3~10 | MYB-E070: 1.3 | MYB-E090: 3.7 | MYB-E120: 7.8 | MYB-E155: 14.5 | MYB-E205: 29 | MYB-E235: 48
Weight | kg | 2 | 12~100 | MYB-E070: 1.9 | MYB-E090: 4.1 | MYB-E120: 9 | MYB-E155: 17.5 | MYB-E205: 33 | MYB-E235: 60
Operating Temperature | ℃ | 12 | 3~100 | -10 ℃ ~ +90 ℃
Lubrication | | 12 | 3~100 | Synthetic Grease
Protection Class | | 12 | 3~100 | IP65
Mounting Position | | 12 | 3~100 | Mounting Orientation (flexible)
Noise Level (n₁ = 3000 rpm) | dB | 12 | 3~100 | MYB-E070: ≤58 | MYB-E090: ≤60 | MYB-E120: ≤63 | MYB-E155: ≤65 | MYB-E205: ≤67 | MYB-E235: ≤70

Characteristics / technical specifications

• Series: MYB-E
• Frame sizes: 70, 90, 120, 155, 205, 235 mm
• Gear ratios: 3:1 to 100:1 (single- and multi-stage configurations)
• Rated output torque: 40 N·m to 2,000 N·m (depending on size and ratio)
• Maximum output torque: up to 3× rated torque
• Backlash: ≤5 arcmin (single-stage), ≤7 arcmin (two-stage)
• Efficiency: ≥97% (3–10:1), ≥94% (12–100:1)
• Rated/maximum input speeds vary by size (see table)
• Protection: IP65; lubrication: synthetic grease
• Operating temperature: -10 ℃ to +90 ℃
• Torsional rigidity, radial and axial load capacities specified per frame size
• Typical service life indication: ~20,000 hours*