Obsolete — sourcing reality for the GBX0400200701F
This planetary gearbox is sourced through independent distribution channels — quantities are confirmed at RFQ, and availability varies by lot.
20:1 planetary reduction in a 40 mm package
Straight-tooth planetary design with a 20:1 reduction ratio, housed in a 40 mm diameter black anodized aluminium body — sized for compact servo or stepper motor output stages where space on the machine frame is tight. Rated for 32 N.m maximum output torque at 100 rpm and 30 °C, with a continuous duty rating of 20 N.m under the same conditions — the continuous figure is the one to size against for sustained positioning or conveying applications. Service life is specified at 30,000 hours at rated load and temperature, lubricated for life with no maintenance interval — a sealed-for-life unit that runs until the grease degrades.
Efficiency, noise, and load limits
94 % efficiency means about 6 % of input power is lost as heat inside the gearbox — at 20 N.m continuous output, the thermal rise stays within the aluminium housing's dissipation capacity without external cooling. Noise level measures 55 dB at 1 m under no-load conditions — roughly the hum of a quiet office printer, which keeps the gearbox suitable for lab or clean-room environments where acoustic limits apply. Maximum axial force on the output shaft is 200 N for a 10,000-hour life, dropping to 160 N for the full 30,000-hour rating; radial force follows the same derating curve — overhung loads from pulleys or sprockets must stay within these bounds to avoid bearing wear.