RC — foot-mounted helical
Hardened helical gears. Versions: RC.YS/Y, RC.FYS/Y, RCF.YS/Y, DRC.YS/Y (double extension shaft). Frames 07 / 17 / 27 / 37 / 47 / 67 / 77 / 97 / 107 / 137 / 147 / 167.
Helical gear reducers
RC / FC helical, SC worm, KC bevel — frames 07–167 for heavier stations that outgrow a GH/GV envelope.
RC·FC helical / SC worm / KC bevelFrames 07–167GBMD DC / GBMA AC brakesPairs with YS / Y motors
FC — flange-mounted helical
FC.YS/Y, FCH (horizontal), FCV (vertical), FCHF / FCVF flanged, FCVZ and combination FC.RC types.
SC — worm structure
SC.YS/Y, SCF.YS/Y, SC.RC.YS/Y. High ratio with self-locking on the right ratio band.
KC — bevel structure
KCA / KCH / KCV plus Z variants and KC.RC combinations. 90° power flow in a heavy housing.
Brakes and fans
GBMD DC brake — manual release as standard; foot, vertical or universal attitude.
GBMA AC brake — frame 100 and below; 380V or 220V three-phase.
Inverter fan — 380V three-phase forced cooling on inverter-duty motors.
HRC60 tooth flanks, root case ≥1 mm, teeth ~20% thicker, module one size up (1.25 vs 1.0). Foot, flange, foot-and-flange and double-shaft versions without a frame gap from 07 to 167. Combines with YS aluminium motors, VFDs and governors as a complete drive.
Frame-by-frame power, torque and ratio tables, published efficiency, and radial/axial load ratings are filled by engineering on the quotation. Those cells are marked pending in the source pack and are not invented here.
Need an RC or FC frame on a YS motor?
Send the duty and we will pick the housing family.