| Frame Size |
BM4434 (Flange: 140 mm) |
| Stator Outer Diameter |
140 mm |
| Motor Length |
180 mm (Standard BM4434 Length) |
| Rated Voltage |
120 V AC (Code 012 = 120 V RMS) |
| Rated Current |
6.8 A (RMS per phase) |
| Peak Current |
20.4 A (3× Rated, short-term) |
| Rated Power (Continuous) |
1.0 kW (1.34 HP) |
| Peak Power (30 sec) |
3.0 kW (4.02 HP) |
| Rated Torque (Continuous) |
3.18 Nm |
| Peak Torque (30 sec) |
9.54 Nm |
| Max Torque (Instantaneous) |
28.6 Nm |
| Rated Speed |
3000 RPM (Base Speed) |
| Max Speed |
4500 RPM (Field Weakening Region) |
| Rated Frequency |
100 Hz |
| Encoder Type |
Incremental Sin/Cos (SI0 Variant — 1024 ppr) |
| Encoder Resolution |
1024 Lines per Revolution (ppr) |
| Encoder Signal Output |
Sin/Cos, TTL Differential, RS422 Compatible (1 Vpp) |
| Encoder Supplementary Signals |
Z-Marker (Index Pulse), A-/B-Phase, U-/V-/W-Phase |
| Shaft Diameter |
22 mm (Cylindrical, with Keyway) |
| Shaft Length |
50 mm (Standard Projection) |
| Keyway Dimension |
8 mm × 4 mm × 32 mm (DIN 6885) |
| Number of Poles |
4 Poles |
| Moment of Inertia (Rotor) |
0.00078 kg·m² (78 g·cm²) |
| Mechanical Time Constant |
5.2 ms |
| Electrical Time Constant |
3.1 ms |
| Winding Inductance (Ld) |
4.5 mH |
| Winding Inductance (Lq) |
6.2 mH |
| Winding Resistance (R) |
0.68 Ω (at 20 °C) |
| Back-EMF Constant (Ke) |
7.8 V/krpm |
| Torque Constant (Kt) |
0.74 Nm/A |
| Insulation Class |
Class F (155 °C Maximum Winding Temperature) |
| Protection Class |
IP65 (with connector mated) / IP54 (without connector) |
| Cooling Method |
IC411 — Self-Ventilated (Internal Centrifugal Fan) |
| Ambient Operating Temperature |
-10 °C to +40 °C (Derating above 40 °C) |
| Storage Temperature |
-25 °C to +70 °C |
| Max Relative Humidity |
95 % (Non-Condensing) |
| Altitude Rating |
Up to 1000 m (Derate 1 % per 100 m above) |
| Vibration Rating |
IEC 60034-14, Category N (Normal) |
| Noise Level |
≤ 68 dB(A) at Rated Speed, No Load |
| Weight (Net) |
6.2 kg (13.67 lbs) |
| Housing Material |
Die-Cast Aluminum Alloy (EN AC-46000 / A380), Anodized Silver/Black |
| Stator Core Material |
Non-Oriented Silicon Steel Laminations, 0.35 mm Thickness, Low Core Loss (M400-50A Grade) |
| Rotor Magnet Material |
Sintered NdFeB (Neodymium-Iron-Boron), N42SH Grade, High Coercivity (Hcj ≥ 1600 kA/m) |
| Magnet Retention |
Carbon Fiber Sleeve + Epoxy Potting (100 % Retention at Max Speed) |
| Bearing Type (Front) |
Deep Groove Ball Bearing, 6205-2RS (Sealed) |
| Bearing Type (Rear) |
Deep Groove Ball Bearing, 6005-2RS (Sealed) |
| Bearing Life (L10) |
≥ 20,000 Hours at Rated Speed and Load |
| Lubrication |
Permanent Grease (Kluber Isoflex Topas NBU 15), Lifetime Lubrication |
| Shaft Seal |
Dual Lip Contact Seal (NBR Rubber), IP65 Rated |
| Mounting Type |
Flange Mount (B5 according to IEC 60034-7), 4 × M8 Mounting Holes, 140 mm Bolt Circle |
| Connector Type |
M23, 12-Pin, Axial Cable Exit, Gold-Plated Contacts, IP67 Rated |
| Connector Part Number |
00-03 |
| Cable Length (Standard) |
1.5 m (PUR Jacket, 4 × 1.0 mm² + 2 × 0.34 mm² for Encoder) |
| Cable Specification |
Baumuller Standard Servo Cable, Oil-Resistant, Flex-Rated (10 Million Cycles) |
| Applicable Drive Series |
Baumuller b maXX 5000, b maXX 3500, b maXX 2500, b maXX eco |
| Communication Protocol |
EtherCAT, PROFINET IRT, CANopen, Modbus RTU/TCP (Drive-Dependent) |
| Certifications |
CE, UL, cUL, CCC, EAC, ROHS, REACH Compliant |
| Compliance Standards |
IEC 60034-1, IEC 60034-5 (IP Rating), IEC 60034-8 (Rotor Retention), EN 61000-6-2/6-4 (EMC) |
