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Kollmorgen U12D-B/ENC/CV E19006050
Product Type: Brushless DC (BLDC) Servo Motor with Integrated Absolute Encoder
Product Brief:
The U12D-B/ENC/CV is a compact, ultralow-profile servo motor from Kollmorgen’s U12D family. The “B” denotes the frame size variant. “ENC” indicates an integrated absolute encoder. “CV” denotes a convex (keyed) output shaft. Part number E19006050 is the specific variant identifier.
Detailed content
Key Technical Specifications:
| Parameter | Value |
|---|---|
| Frame Size | U12D (Ø40 mm body diameter) |
| Stack Length | ~63 mm (typical for U12D-B) |
| Rated Torque (Continuous) | 0.47 Nm |
| Peak Torque | 1.41 Nm (3× rated, 10 s) |
| Rated Speed | 3,000 RPM |
| Max Speed | 6,000 RPM |
| Rated Power | ~150 W |
| Voltage Rating | 48 VDC (nominal) |
| Encoder Type | Multiturn Absolute — EnDat 2.2 / Hiperface DSL |
| Encoder Resolution | 2,048 lines/rev (11-bit single-turn) + 4,096 multiturn |
| Shaft Type | Convex (keyed) shaft — DIN 6885-1, key 3×3 mm |
| Shaft Diameter | 8 mm |
| Shaft Length | 20 mm (keyed portion) |
| Weight | ~0.45 kg |
| Insulation Class | Class F (155 °C) |
| Protection Rating | IP65 (with shaft seal) |
| Ambient Temperature | -10 °C to +40 °C |
| Certifications | CE, UL, cUL, RoHS |
Functional Features:
- Integrated absolute encoder eliminates homing sequence on power-up
- Convex shaft provides positive mechanical lock for pulleys, gears, and couplings — no slip under high torque
- Ultraslim form factor enables installation in space-constrained applications
- Low cogging torque design for smooth motion at low speeds
- Pre-assembled cable harness with M12 or flying lead connector options
Material Composition:
- Stator: Silicon steel laminations (0.35 mm thickness), copper windings (Class F enamel)
- Rotor: Neodymium-Iron-Boron (NdFeB) permanent magnets, sintered
- Housing: Anodized aluminum alloy (6061-T6)
- Shaft: Hardened stainless steel (AISI 420)
- Bearings: Sealed ball bearings (lubricated for life)
Applicable Industries:
- Pick-and-place machines
- Laboratory automation
- Medical diagnostic equipment
- 3D printers
- Small-format CNC routers
- Vision inspection systems
Installation Requirements:
- Mount using M3 screws into a Ø40 mm mounting flange pattern
- Align shaft coupling within 0.05 mm TIR (Total Indicated Runout)
- Do not apply axial or radial loads exceeding 100 N / 50 N respectively
- Use flexible coupling to absorb misalignment
Usage Notes:
- The convex shaft requires a matching keyway in the coupling hub
- IP65 rating is maintained only when the shaft seal is properly installed — do not remove the seal
- Do not exceed 6,000 RPM continuous speed
