Obsolete — sourcing reality for the GBX0600600553F
Any replacement requires a functional cross-reference based on the mounting envelope (60 mm diameter), the 60:1 reduction ratio, and the 44 N.m continuous torque rating.
Continuous output torque is 44 N.m at 100 rpm and 30 °C ambient — this is the sustained load the gearbox can carry through its rated 30,000-hour service life. The maximum output torque reaches 70 N.m under the same conditions, which covers occasional peak or start-up loads but not continuous operation. The 60:1 reduction ratio means the input speed is reduced by a factor of 60 while torque is multiplied by roughly the same factor, minus the 94 % efficiency loss. That efficiency figure is the mechanical power throughput — 6 % is lost as heat, which the black anodized aluminium housing dissipates across the -25 to 90 °C operating range.
Shaft load limits — axial and radial forces
Maximum axial force on the output shaft is 450 N for the full 30,000-hour service life at 100 rpm, or 600 N if the application only needs 10,000 hours. Radial force limits are 340 N and 500 N respectively, measured at the midpoint of the output shaft. These limits are the load-bearing constraints for belt drives, chain sprockets, or direct-coupled loads mounted on the C 45 steel output shaft. Exceeding them shortens the bearing and gear life below the rated 30,000-hour target.
Backlash and rigidity — positioning accuracy constraints
Maximum torsional backlash is 22 arc-minutes — this is the angular play between input and output when the direction reverses. For indexing or positioning applications that need better than 0.37° repeatability, this gearbox requires a servo-grade or preloaded alternative. Torsional rigidity is 2.5 N.m per arc-minute of wind-up. At the continuous torque of 44 N.m, the elastic deflection under load is about 17.6 arc-minutes — that is separate from the backlash and adds to the total positioning error in a closed-loop system.
Noise, lubrication, and ingress protection
Noise level is 58 dB measured at 1 meter under no-load conditions. The straight-tooth gear geometry is inherently noisier than helical, so this figure is the acoustic floor — expect a few dB higher under load. The gearbox is lubricated for life — no re-greasing interval. The shaft output seal carries an IP54 rating, meaning it is protected against dust ingress and splashing water, but not immersion or high-pressure washdown.