Skip to product information
HEIDENHAIN ROQ 437 Absolute Rotary Encoder
Key specifications
- Absolute multiturn rotary encoder with integral bearing
- EnDat 2.2 interface (EnDat22); 33 554 432 positions per revolution (25 bits)
- Multiturn: 4096 revolutions
- System accuracy ±20 arc seconds
- Solid shaft for separate shaft coupling; synchro or clamping flange
- Housing diameter ≈ 56 mm
- Supply DC 3.6 V to 14 V
- Max. operating temperature 100 °C
- Protection IP67 at housing; IP64 at shaft inlet (IP66 upon request)
- Available with functional safety
Download current ROC / ROQ 400 specifications (May 2026, PDF)
Download ROC 425 / ROQ 437 product information (PDF)
Pricing and lead times on request. Use Request a Quote and include the model, interface, and shaft/mounting version (current IDs 1322273-xx synchro, 1322274-xx clamping).