RH-900C - All new large hollow gearhead with high torque and high moment
- Brand: Nabtesco
- Product Code: RH-900C
Description: Large hollow (ø132) gearhead with high torque and high moment creating a compact profile.
Improved for much simpler system designing, providing tap and through holes for mounting.
In addition, designed for easy installation / replacement such as external shaft motors of robots from various manufacturers, pre-filled with grease and grease supply/discharge ports located on each of the side, rear, and front.
Description: Large hollow (ø132) gearhead with high torque and high moment creating a compact profile.
Improved for much simpler system designing, providing tap and through holes for mounting.
In addition, designed for easy installation / replacement such as external shaft motors of robots from various manufacturers, pre-filled with grease and grease supply/discharge ports located on each of the side, rear, and front.
Product Features
- High moment
- High torque
- Large hollow (ø132)
- Compact
- Backlash less than 1 arc. min.
- Lost motion less than 1 arc. min.
- Internal main bearing
- Major motor coupling parts included
- Sealed grease
Spec Information
Model RH-900C RH-900C RH-900C Discrimination1 Series Unit Type Series Symbol Model Motor Series w number (w)
w number (kw)
Type Ratio Actual Ratio Rated Torque （N・m）
Allowable Scceleration/Deceleration Torque （N・m）
Momentary Maximum Allowable Torque （N・m）
Dimension α1 (mm)
Dimension α1 (mm)
Dimension Din (mm)
Input Shaft Rated Moment （N・m）
Input Shaft Allowable Moment （N・m）
Dimensionβ (mm)
Rated Output Speed （r.p.m.）
Rated life （hr）
Allowable Output Speed （r.p.m.）
Allowable Input Speed （r.p.m.）
Backlash (arc.min.)
Lost Motion (arc.min.)
Torsional Regidity (Nm/arc.min.)
Moment Rejidity (Nm/arc.min.)
Start-up Effciency (%)
Moment of Inertia (kg・m^2)
Mass (kg)
Allowable Moment 1 (N・m)
Allowance Thrust 1 (N)
Allowable Moment 2 (N・m)
Allowance Thrust 2 (N)
Output Rotational Speed 1 (min-1)
Output Torque 1 (N・m)
Output Rotational Speed 2 (min-1)
Output Torque 2 (N・m)
Brake Holding Torque (N・m)
Reduced Value Of The Inertia Moment For The Input Shaft (kgm2)
Capacity Part Number Quantity Packaging Type Capacity Part Number Quantity Packaging Type Maximum allowable load (reference values) (kg)
Maximum center of gravity height (mm)
Maximum tilt angle (deg)
Reduction ratio (Rotary axis) Reduction ratio (Tilt axis) Allowable startup/stop torque (Rotary axis) (Nm)
Allowable startup/stop torque (Tilt axis) (Nm)
Rotary axis allowable output speed (Operation Example) （r.p.m.）
Tilt axis allowable output speed (Operation Example) （r.p.m.）
Backlash・Lost motion (Rotary axis) (arc.min.)
Backlash・Lost motion (Tilt axis) (arc.min.)
Moment of inertia I (I=GD2/4) motor input conversion (Rotary axis) (kg-m2)
Moment of inertia I (I=GD2/4) motor input conversion (Tilt axis) (kg-m2)
Motor capacity (reference values) ※1 (w)
Wheel diameter (mm)
Maximum speed ※1 (m/min)
Loading capacity/wheel (kgf)
Loading load/4 wheels AGV (reference values) ※1 (kgf)
19.78 186 186 8,820 22,050 15 6,000 15 less than 1 less than 1 410 44,100 88,200 19.78 258 258 8,820 22,050 15 6,000 15 less than 1 less than 1 410 44,100 88,200 19.78 330 330 8,820 22,050 15 6,000 15 less than 1 less than 1 410 44,100 88,200 ※1 Subject to change depending on the operating conditions