Complementary
Maximum mechanical speed	3000 rpm
[Us] rated supply voltage	220 V
Network number of phases	Three phase
Continuous stall current	16.55 A
Continuous stall torque	16.7 N.m for LXM26D at 22.9 A, 220 V, three phase; 16.7 N.m for LXM28 at 22.9 A, 220 V, three phase
Continuous power	3500 W
Peak stall torque	50.3 N.m for LXM26D at 22.9 A, 220 V, three phase; 50.3 N.m for LXM28... at 22.9 A, 220 V, three phase
Nominal output power	3500 W for LXM26D at 22.9 A, 220 V, three phase; 3500 W for LXM28... at 22.9 A, 220 V, three phase
Nominal torque	16.7 N.m for LXM26D at 22.9 A, 220 V, three phase; 16.7 N.m for LXM28... at 22.9 A, 220 V, three phase
Nominal speed	2000 rpm for LXM26D at 22.9 A, 220 V, three phase; 2000 rpm for LXM28... at 22.9 A, 220 V, three phase
Maximum current Irms	57.8 A for LXM26D at 3.5 kW, 220 V; 57.8 A for LXM28... at 3.5 kW, 220 V
Maximum permanent current	19 A
Product compatibility	LXM26D servo drive motor at 3.5 kW, 220 V, three phase; LXM28... servo drive motor at 3.5 kW, 220 V, three phase
Shaft end	Keyed
Shaft diameter	35 mm
Shaft length	79 mm
Key width	10 mm
Feedback type	20 bits single turn absolute encoder
Holding brake	With
Holding torque	48 N.m built-in
Mounting support	Asian standard flange
Motor flange size	180 mm
Electrical connection	Connector MIL
Torque constant	1.01 N.m/A at 20 °C
Back emf constant	61 V/krpm at 20 °C
Number of motor poles	5.0
Rotor inertia	54.1 kg.cm²
Stator resistance	0.157 Ohm at 20 °C
Stator inductance	2.57 mH at 20 °C
Stator electrical time constant	18.66 ms at 20 °C
Maximum radial force Fr	1200 N at 2000 rpm
Maximum axial force Fa	497 N
Brake pull-in power	49.6 W
Type of cooling	Natural convection
Length	235 mm
Number of motor stacks	2
Centring collar diameter	114.3 mm
Centring collar depth	4 mm
Number of mounting holes	4
Mounting holes diameter	13.5 mm
Circle diameter of the mounting holes	200 mm
Distance shaft shoulder-flange	4 mm
Net weight	23 kg
Sizing reference	BCH2
Accuracy error [angular]	0.044 °
Temperature copper hot	135 °C
Temperature magnet hot	100 °C
Temperature magnet rt	20 °C
Inertia	54.09 kg.cm² of brake; 54.1 kg.cm² of motor
Contractual warranty
Warranty (in months)	18
Environment
IP degree of protection	IP50 IM V3; IP65 IM B5, IM V1
Ambient air temperature for operation	0…40 °C
Logistical informations
Country of origin	CN
Main
Range of product	Lexium 28
Range compatibility	Lexium 28
Product or component type	Servo motor
Device short name	BCH2
Packing Units
Unit Type of Package 1	PCE
Number of Units in Package 1	1
Package 1 Height	24.5 cm
Package 1 Width	29 cm
Package 1 Length	58.5 cm
Package 1 Weight	24630 g
Unit Type of Package 2	P06
Number of Units in Package 2	4
Package 2 Height	50 cm
Package 2 Width	80 cm
Package 2 Length	60 cm
Package 2 Weight	110.7 kg

BCH2 servo motor from the Lexium 28 servo drive series. The BCH2 series includes brushless synchronous AC servo motors with compact dimensions for dynamic applications. This servo has a nominal continuous stall torque of 16.7 Nm. Its winding type is optimized for torque at 2000 rpm and has a medium moment of inertia. The nominal power is 3500 W. The electrical connection is made via MIL connector. The motor flange is 180 mm for fastening. A high-resolution 20-bit absolute encoder as a single-turn enables precise control. The shaft end is designed for a feather key and complies with protection class IP65. The motor housing corresponds to protection class IP65. A holding brake is integrated. The associated servo amplifier from the Lexium 28 series is intended for operation: LXM28.U20M3X. Thanks to the Green Premium ecolabel, you can obtain detailed information on material content, environmental impact and circular economy that supports your sustainability goals.