Planetary gearbox with 4:1 reduction — 38 N.m continuous, 61 N.m peak
The GBX0600041004F is a 60 mm planetary gearbox with straight-cut teeth, delivering a 4:1 reduction ratio. Continuous output torque is 38 N.m at 100 rpm and 30 °C; the maximum allowable torque under intermittent duty reaches 61 N.m at the same speed and temperature — the margin between the two figures defines the duty cycle window the application must stay inside. Rated service life is 30 000 hours at 100 rpm and 30 °C, with the gearbox lubricated for life — no maintenance interval for oil changes. The 94 % efficiency figure means 6 % of input power is lost as heat inside the housing; at rated continuous torque the thermal rise stays within the -25 to 90 °C ambient operating range provided the housing is not enclosed in a sealed pocket without airflow.
Torque, backlash, and shaft loading — the numbers that govern the fit
Torsional rigidity is 2.3 N.m/arcmin — the stiffness of the gear train under load. At the continuous torque of 38 N.m, the windup is roughly 16.5 arcmin (38 ÷ 2.3), which is close to the backlash ceiling; the combination means the output shaft position under load is dominated by the gear train compliance, not just the clearance between teeth. Maximum radial force at the output shaft is 340 N for the full 30 000-hour life, or 500 N if the application accepts a 10 000-hour life. The radial load must be applied at mid-distance from the shaft shoulder — a sprocket or pulley mounted further out reduces the allowable force proportionally. Maximum axial force is 450 N for 30 000 hours, 600 N for 10 000 hours. Both ratings are at 100 rpm and 30 °C; higher speeds reduce the allowable load roughly linearly.
Obsolete — sourcing through independent channels
Available through independent surplus and broker distribution. Quantities are lot-specific and confirmed at RFQ — no blanket stock-holding claim.
Mounting and environmental fit
Shaft output sealing is rated IP54 — the gearbox is protected against dust ingress and splashing water at the output shaft seal, but is not submersible or washdown-rated. The black anodised aluminium housing resists corrosion in indoor industrial environments; the C45 steel shaft is suitable for keyed connections with standard metric keys. External diameter is 60 mm — the gearbox mounts via the flange face or the housing body clamp, depending on the application bracket. The straight-tooth planetary design is noisier than helical gearing; the 58 dB at 1 m no-load figure is a reference — under load the noise level rises with transmitted torque and speed.