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Product Overview:
The PRD-B040SSIB-6 is a precision planetary gearhead from Kollmorgen, designed for high-torque, low-backlash servo motor applications. The “B040” denotes the 40 mm frame size with 040 gear ratio variant, “SS” indicates stainless steel housing option, “I” denotes input shaft type (with keyway), “B” indicates output bearing configuration, and “6” is the specific ratio/configuration code.
Key Technical Specifications:
| Parameter | Value |
|---|---|
| Gearhead Type | Planetary (Epicyclic) |
| Frame Size | 40 mm (outer diameter) |
| Gear Ratio | 6:1 |
| Rated Input Speed | 6,000 RPM (max) |
| Rated Output Torque | 8.0 Nm (continuous) |
| Peak Output Torque | 24 Nm (3× rated, 10 s) |
| Backlash | ≤3 arcmin (standard), ≤1 arcmin (precision option) |
| Torsional Stiffness | 15 Nm/arcmin |
| Efficiency | ≥95% (per stage), ≥90% (overall) |
| Input Shaft | Round with keyway, 8 mm diameter |
| Output Shaft | Round with keyway, 14 mm diameter |
| Housing Material | Aluminum alloy (anodized) or Stainless Steel (SS option) |
| Gear Material | Hardened alloy steel, ground teeth |
| Lubrication | Synthetic grease, lifetime fill (no maintenance required) |
| Operating Temperature | -20°C to +80°C |
| IP Rating | IP65 (with sealing) |
| Weight | ~0.45 kg |
| Mounting | Flange mount, 4× M4 holes |
| Certifications | CE, RoHS, REACH |
Functional Features:
- Planetary design — high torque density, coaxial input/output
- Low backlash — suitable for precision positioning
- Stainless steel option — for food, pharma, washdown environments
- Preloaded output bearing — eliminates axial play
- Lifetime lubrication — zero maintenance gearbox
Applicable Industries:
Robotic joints, CNC axis drives, pick-and-place machines, medical devices, aerospace actuators, semiconductor handling
Installation Requirements:
- Mount gearhead directly to motor flange using 4× M4 × 0.7 screws; torque to 1.2 Nm
- Align motor shaft to gearhead input with ≤0.05 mm offset
- Apply Loctite 243 to mounting screws
- Output shaft: use flexible coupling; max misalignment ≤0.1 mm radial, ≤0.05° angular
Usage Notes:
- Do not exceed rated input speed — causes gear tooth failure
- Maximum axial load on output shaft: 100 N
- Radial load on output shaft: 200 N max
