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Kollmorgen PRD-B040SAIB-6
Product Name: Kollmorgen PRD-B040SAIB-6 — Planetary Gearhead (PRD Series)
Product Overview:
The PRD-B040SAIB-6 is a precision planetary gear reducer from Kollmorgen’s PRD product line. It is designed to increase torque and reduce speed for servo motor applications requiring high gear ratios in compact packages.
Detailed content
Model Series: PRD Series Planetary Gearheads
Key Specifications:
| Parameter | Value |
|---|---|
| Frame Size | 40 mm |
| Gear Ratio | 6:1 |
| Max Input Speed | 6000 RPM |
| Rated Output Torque | 14 Nm (continuous) |
| Peak Output Torque | 42 Nm (3 sec) |
| Backlash | ≤3 arc-min (standard), ≤1 arc-min (precision) |
| Torsional Stiffness | 25 Nm/arc-min |
| Efficiency | ≥95% per stage |
| Input Connection | Clamping hub, 9 mm bore |
| Output Connection | Solid shaft, 14 mm diameter, keyed |
| Weight | Approximately 0.65 kg |
| Lubrication | Lifetime grease (synthetic, NLGI 2) |
Construction & Materials:
- Housing: Hardened aluminum alloy (6061-T6, anodized)
- Gears: Case-hardened alloy steel (20CrMnTi), ground to AGMA 12 quality
- Planet Carrier: Steel, precision machined
- Bearings: Angular contact ball bearings (preloaded)
- Seals: Double-lip nitrile rubber
Working Principle:
Input torque is applied to the sun gear, which drives three planet gears orbiting within a fixed ring gear. The planet carrier serves as the output, delivering reduced speed and multiplied torque. Preloaded bearings eliminate backlash.
Advantages:
- High torque density — 14 Nm continuous in a 40 mm frame
- Low backlash — ≤3 arc-min standard for precision positioning
- High efficiency — ≥95% minimizes heat generation
- Compact design — fits directly on NEMA 17/23 frame motors
Applicable Industries:
Pick-and-place robots, semiconductor handling, medical device actuation, laboratory automation, aerospace actuation
Installation Requirements:
- Align motor shaft to gearhead input within 0.03 mm offset
- Use torque-controlled bolts (8 Nm max) for output coupling
- Ensure free rotation — do not restrict output shaft axially
- Mount in any orientation (lubrication is position-independent)
Usage Notes:
- Do not exceed rated input speed (6000 RPM)
- Re-lubricate every 10,000 hours in high-duty applications (optional grease fitting available)
- Operate within -10°C to +70°C for rated torque; derate 20% above 50°C
