The 749144-16 is commonly sold as a HEIDENHAIN ERN 1387 2048 incremental rotary encoder. Published listing data for this exact ID regularly identifies it as ERN1387 2048 62S14-70, while HEIDENHAIN product information places the ERN 1387 in the ECN/ERN 1300 series of rotary encoders with integral bearings for elevator servo-drive control.
That family is described as using plane-surface coupling, rigid shaft coupling, and uniform dimensions for various electrical interfaces.
The product class makes its real application role fairly clear.
An encoder like this is not purchased for general sensing. It is typically chosen where motion-feedback quality directly affects how the drive system interprets rotation and position.
In real installed systems, that often means exact replacement matters more than broad compatibility claims, especially when the machine already depends on a specific encoder family, mounting concept, and signal structure.
This is an engineering inference based on the ERN 1387 product family and the exact 749144-16 market identification.
The 749144-16 is best suited to servo-drive feedback tasks, especially in systems using the ERN 1387 style encoder configuration. HEIDENHAIN’s product sheet places ERN 1387 in elevator servo-drive control, and the wider ERN 1300 series is described as a rugged incremental encoder platform with integral bearings and high tolerance to mounting variation.
That makes this model especially relevant where stable rotational feedback, compact mounting, and dependable signal quality are important.
In practical replacement work, this is the kind of encoder buyers usually source by exact ID rather than by general encoder size. The reason is simple: the signal type, connector style, shaft arrangement, and installation geometry all affect whether the replacement will fit and behave as expected.
The exact listing for 749144-16 and the broader ERN 1387 feature set both support that replacement-first view.
This is an engineering inference based on the published 749144-16 listing and ERN 1387 product data.
This model should be treated as a precision drive-feedback component, not as a generic encoder chosen only by pulse count. Buyers should verify the installed ID number, the mechanical coupling style, the connector style, the signal interface, and the application environment before ordering. In the ERN 1387 family, those details are part of the product identity, not just secondary options.
This is an engineering recommendation based on HEIDENHAIN’s ERN 1387 product information and commonly published 749144-16 listing data.
| Parameter | Value |
|---|---|
| Part Number | 749144-16 |
| Manufacturer | HEIDENHAIN |
| Common Market Identification | ERN 1387 2048 62S14-70 |
| Product Type | Incremental rotary encoder |
| Series Context | ERN 1300 / ERN 1387 |
| Line Count | 2048 |
| Signal Interface | 1 Vpp incremental signals |
| Commutation Signals | 1 Vpp (Z1 track) |
| Voltage Supply | 5 V DC |
| Connector Context | 14-pin PCB connector |
| Shaft Style | Tapered shaft Ø 9.25 mm, 1:10 |
| Permissible Axial Motion | ±0.5 mm |
| Protection | IP40 when mounted |
| Application Context | Elevator / drive feedback |
Q1: What kind of product is 749144-16?
It is a HEIDENHAIN incremental rotary encoder, commonly sold as ERN 1387 2048 62S14-70.
Q2: What makes this encoder valuable in real drive systems?
Its value comes from providing stable rotary feedback in applications where the drive depends on accurate incremental signals and predictable installation geometry.
This is an engineering inference based on the ERN 1387 family role.
Q3: What applications is it most associated with?
It is most associated with servo-drive feedback, especially elevator servo-drive control within the ERN 1387 product family.
Q4: Why is exact ID matching important for this model?
Because the encoder’s signal structure, connector style, shaft arrangement, and mounting concept all affect fit and behavior.
On feedback components, those details are usually critical. This is an engineering inference based on the ERN 1387 product data and the 749144-16 listing identity.
Q5: What should be checked before ordering?
Check the installed ID number, the encoder family, the connector style, the shaft/coupling arrangement, and the required signal interface already used in the machine.
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