The APEX DYNAMICS PEⅡ090-030 (PE2-090 Series) is an economical, high-efficiency precision in-line planetary gearbox manufactured by APEX DYNAMICS, INC. (Taiwan) – a world leader in planetary gearbox engineering for servo motion control. This unit is built strictly to engineering Drawing No. PE2-090_2ST_19-P1346340503, featuring an input bore of Ø19mm for direct, seamless, and coaxial mounting onto Mitsubishi MELSERVO-J4 Series Low Inertia AC Servo Motors model HG-KR73 (750W / 0.75kW rated output, 80 mm flange footprint).

The PEⅡ Series is characterized by its round output mounting flange, providing robust mechanical support and an optimal cost-to-performance ratio. The gearbox incorporates a heavy-duty black-coated steel housing coupled with precision CNC-machined aluminum mounting flanges. Its internal mechanism employs surface-hardened straight spur planetary gears that deliver balanced torque distribution, superior wear resistance, and high structural durability under continuous operating loads. Featuring a 2-stage gear reduction ratio of 1:30, reduced backlash (≤ 10 ~ 12 arcmin), and a transmission efficiency exceeding 94%, it delivers smooth motion transmission and reliable positioning accuracy for packaging machines, indexing tables, and automated feeding systems. Factory-sealed with high-grade synthetic grease and built to IP65 ingress protection standards, it offers completely maintenance-free operation across industrial automation environments.

• Manufacturer: APEX DYNAMICS, INC.
• Brand Origin: Taiwan
• Full Model Designation: PEⅡ090 - 030 / MITSUBISHI HG-KR73
• Engineering Drawing Code: PE2-090_2ST_19-P1346340503
• Product Classification: Precision In-line Planetary Gearbox (PEⅡ Series)
• Dedicated Mating Servo Motor: Mitsubishi AC Servo Motor HG-KR Series model HG-KR73 (750W / 0.75 kW rated power, Low Inertia, 80 mm flange)
• Frame Size: 90 mm (Round output flange mounting footprint)
• Stage Configuration: 2-Stage reduction (2ST)
• Nominal Gear Ratio: 1:30 (i = 30)
• Gearing Technology: Precision-machined, case-hardened Straight Spur Planetary Gears
• Backlash Rating: ≤ 10 ~ 12 arcmin (Low backlash for precise positioning)
• Transmission Efficiency: ≥ 94% (2-stage configuration)
• Nominal Output Torque (T2N): Approx. 130 Nm – 155 Nm
• Maximum Acceleration / Emergency Stop Torque (T2NOT): Up to 2.5 – 3 times nominal torque
• Rated Input Speed (n1N): 3,000 rpm
• Maximum Input Speed (n1B): Up to 6,000 rpm
• Motor Input Bore Diameter: Ø 19 mm
• Maximum Radial Load Capacity (F2rB): Up to 2,500 N – 3,200 N
• Maximum Axial Load Capacity (F2aB): Up to 1,300 N – 1,600 N
• Output Shaft Configuration: Smooth solid shaft with standard keyway
• Ingress Protection Rating: IP65 (Total dust-tight protection and resistance against water jets)
• Lubrication: Factory-sealed high-performance synthetic grease (Maintenance-free lifetime lubrication)
• Direction of Rotation: Output shaft rotates in the same direction as the input motor shaft
• Housing Construction: Black coated steel housing with precision anodized aluminum mounting flanges
• Operating Ambient Temperature: -10°C to 90°C
• Industrial Applications: CNC machine tool feed axes, automatic film-wrapping and labeling machinery, rotary indexing tables, sorting conveyors, industrial web printing presses, and pick-and-place robotic systems