LenzeGST05-2S-VBR-09HC41Servo Gear Motor — 1.6 kW, 3.8 N·m Rated Torque, 4050 r/min, Resolver Feedback, Two-Stage Helical Gearbox, No Brake

Product Description

What this part is

Lenze servo gear motor: an MCS09H41LRS0B0 synchronous servo motor mounted on a GST05-2S-VBR-09HC41 two-stage helical gearbox. Rated Power: 1.60 kW (2.15 hp). Rated Torque: 3.80 N·m (33.6 lb-in). Standstill Torque M0: 5.50 N·m (48.7 lb-in). Maximum Torque: 20.0 N·m (177.0 lb-in). Rated Speed: 4050 r/min. Rated Current: 3.40 A. Feedback Type: resolver. Brake: none.

Decoding the designation

MCS — Lenze compact synchronous servo motor.

09 — motor frame size 09.

H — length and torque class within frame 09, giving a standstill torque of 5.50 N·m.

41 — rated speed code, 4050 r/min.

L — standard flange form C/FT with threaded holes and a cylindrical shaft without a keyway.

RS0 — resolver feedback, p = 1.

B0 — no holding brake.

GST — Lenze helical inline gearbox.

05 — gearbox size 05.

2 — two gear stages.

What these specs mean in practice

Standstill Current I0: 4.30 A. Maximum Current: 20.0 A. Rated Voltage: 300 V on a three-phase 400 V supply. Rated Frequency: 270 Hz. Torque Constant Kt: 1.29 N·m/A. Voltage Constant: 75.7 V per 1000 rpm. Winding Resistance: 3.20 Ω at 20 °C, 4.30 Ω at 150 °C. Inductance: 16.1 mH. Moment of Inertia: 1.90 kg·cm² (0.649 lb·in²). Efficiency: 91.0 %. Thermal Class: F (155 °C). Motor Weight: 6.10 kg (13.45 lb). Gearbox Efficiency: 0.97.

Maximum torque is 3.6 times rated: 3.80 N·m continuous, 20.0 N·m on acceleration.

A moment of inertia of 1.90 kg·cm² on a 5.50 N·m standstill torque gives a high torque-to-inertia ratio, which is what a servo needs to reverse a load quickly rather than simply hold it.

Resolver feedback is rugged and tolerant of heat, shock and electrical noise. It gives absolute position within one revolution, so the drive knows commutation angle at power-up.

Two gear stages at 0.97 efficiency convert the motor’s high speed and low torque into the low speed and high torque a machine axis uses directly, without a belt or a separate coupling.

Mounting data

Motor Flange: B5-FF100. Motor Shaft End: 14 x 30 mm (0.5512 x 1.1811 in), cylindrical, without keyway. Gearbox Stages: 2. Gearbox mounting positions A to F. Approved gearbox lubricants: CLP 460, CLP HC 320, CLP HC 220 USDA H1.

Quantity and configuration

Unit Quantity: 1 Pc. Motor and gearbox as a factory-assembled unit.

Interchange guidance

Within the MCS09 frame, the neighbouring motors are MCS09D41 and MCS09D60 at 3.3 N·m standstill torque, MCS09F38 and MCS09F60 at 4.2 N·m, MCS09H60 at 5.5 N·m and 6000 r/min, and MCS09L41 and MCS09L51 at 7.5 N·m. MCS09H41 executions differ by feedback and brake code: SRS and SRM are Hiperface single and multiturn, ECN, EQN and EQI are EnDat, CXX and TXX are TTL, HXX is HTL, SXX is sin/cos; F1, F2, F5, F6, FG, FH, P1, P2, P5 and P6 denote fitted holding brakes.

GST05-1S-VBR-09HC41 is the single-stage gearbox on the same motor adapter. Common spellings: GST05-2S VBR 09HC41, GST052SVBR09HC41, MCS09H41RS0B0, MCS 09 H41 L RS0 B0.