HRE-ABS / POSITION AT POWER-UP
Absolute Hollow Shaft Encoders
Singleturn and multiturn hollow rotary feedback, configured around the actual controller interface.
Metric or inch · drawing review
SSI / BiSS-C / RS485 / CANopen
BORE ID × HOUSING OD × OUTPUT
Match the shaft before the signal.
Absolute position is only useful when the controller agrees on the data format. Specify bit allocation, clock, code direction and multiturn retention before selecting a model.
| Model | Hollow bore ID / mounting | Housing OD | Resolution | Output circuit / protocol | Max RPM |
|---|---|---|---|---|---|
| HRE-ABS-ST | Through / blind · exact bore review | Ø58 mm target | 12-bit singleturn target; specify required bits | SSI / RS485 / CANopen by configuration | Confirm by interface |
| HRE-ABS-MT | Metric / inch · exact drawing review | Housing confirmed on drawing | 24-bit total target; singleturn/multiturn split to confirm | SSI / CANopen; EtherCAT / 4–20 mA project review | Confirm by configuration |
Configuration request envelopes, not a released datasheet. Max RPM, exact bore, housing, resolution and protocol combinations require written confirmation. Inch and metric sizes are distinct.
Send your exact diameter and controller requirements →APPLICATION FIT / HRE-ABS
Servo axes · automated turntables · motor OEMs
Bring the machine constraints into selection before ordering a prototype.
- Singleturn bit count and separate multiturn range
- Power-loss retention, battery or energy-harvesting method
- SSI framing / BiSS-C CRC / CANopen profile / Ethernet device files
01 / CHOOSE THE MECHANICAL INTERFACE
One shaft. Three ways to read it.
Through-hollow
A continuous bore lets the shaft pass through the encoder. Check clamp access and shaft clearance.
Blind hollow bore
A closed bore fits the shaft end. Check insertion depth and avoid bottoming out the shaft.
Shaftless ring kit
A ring and readhead use the machine bearing. Check sensing gap, runout and calibration.
Original engineering concepts. Not to scale; final housing, ring and mounting dimensions require an approved drawing.
HRE-ABS / ENGINEERING QUESTIONS
Resolve the fit before release.
Is the same protocol name enough for a replacement?
No. Confirm wiring, supply, clock rate, word length, direction, preset behavior, device profile and controller settings.
Are resolution and angular accuracy interchangeable?
No. Resolution is the smallest digital increment. Accuracy also depends on sensing error, mounting, calibration and the full operating envelope.
ENGINEERING HANDOFF / HRE-ABS · Absolute Hollow Shaft Encoders
Start with your shaft.
We’ll review the fit.
Send the exact bore, signal and application. Request a configuration review, quotation and matching STEP drawing in one inquiry.
[email protected] ↗Drawings and detailed specifications are confirmed for the selected configuration. Please include your original full model code for a replacement review.