Engineered & supported in Hudson, Ohio since 2012330-633-7735 · info@slewpro.com
Potesta & Company
SlewPro
FHB SeriesRatio 94:1

FHB25A Slewing Drive

Heavy-load drives with bronze worm gear. Heavy-load slewing drives with bronze worm-wheel teeth for higher drive torque and scuffing resistance, and two shaft seals (outer and inner ring). Built to withstand large axial dynamic loads; available with two worms and two motors for double the torque.

Performance

ModelFHB25A
SeriesFHB Series
TypeHeavy-load drives with bronze worm gear
Max. output torque30,000 N·m (22,128 lbf-ft)
Max. tilting moment180,000 N·m (132,768 lbf-ft)
Max. axial load1,500 kN (337,200 lbf)
Gear ratio94:1
Backlash0.15°
Unit weight551.1 lb (250 kg)

Maximum ratings. Our engineers will confirm the drive for your duty cycle.

SlewPro FHB25A slewing drive

Load chart

FHB25A moment and axial load chart

Tilting moment vs. axial load. Click to enlarge.

Get this drive

Standard lead time 14–16 weeks; expediting available for an additional charge. Pricing quoted within 1–2 business days. 3D models available on request.

Request a Quote

1 FHB25A configuration on file

Drives we have already engineered: with hydraulic motors, DC gear motors, SEW-EURODRIVE or NORD AC gear motors integrated in-house, planetary gearboxes, encoders and brakes, or built to mate with the customer’s own gearbox or motor. Click a configuration to see what it includes. Need something different? New designs are added often.

FHB25A-94M-SR-TMS03-320-D-C005Hydraulic motor
Hydraulic motor320 cc/rev displacement
Motor portstoward bottom mounting face
Output speed< 2.5 rpm
Worm far endStandard end cap
Worm handRight hand
Ratio94:1
Mounting threadsMetric
Mounting holesBlind threaded holes on inner and outer rings
VersionCustomer-specific variant
3D modelAvailable on request
Quote this configuration

Talk to an engineer

Need help selecting the right part? Our engineers will size it, cross it, and quote it — usually within 1–2 business days.

Not in the catalog? We design to your application, with no engineering charge.