Frameless torque motor
Kollmorgen TBM2G
Compact low-voltage frameless motor kits sized for collaborative robot joints and other embedded axes, in seven diameters with three stack lengths each.
Key specifications
| Outer diameter | 50–115 mm |
|---|---|
| Continuous torque (max) | 6.03 Nm |
| Power (max) | 1,430 W |
| Frame sizes | 50, 60, 68, 76, 85, 94, 115 mm |
| Supply | 48 Vdc and below |
| Feedback | optional integrated Hall sensors |
Summarised in our own words from Regal Rexnord Corporation's published data; series maxima, individual models vary. Last checked 2026-10-29. Source 1
Notes on this data
Continuous stall torque 0.27 Nm (050-08) to 6.03 Nm (115-26). Rated speeds 2,600-8,000 rpm; no peak torque or max speed published on the product page. Rated power 205-1,430 W. Original TBM series not covered on this page.
Specify Motion is not affiliated with Regal Rexnord Corporation. Kollmorgen and TBM2G are used only to identify the product. Comparisons use published figures; always confirm against the current datasheet.
Typical applications
Alternatives that meet or exceed these figures
Engineers often come to us with a Kollmorgen part number and leave with an alternative that is easier to source, quicker to deliver or a better fit for the machine. These 3 series from our supply network are the closest match on published figures.
High-voltage (600 VDC) frameless torque motor kits from 110 to 360 mm with large through-bores and integrated Hall sensors; the high-torque end of the Akribis frameless range.
| Published maximum | TBM2G | ADR-P |
|---|---|---|
| Continuous torque | 6.03 Nm | 365 Nm meets or exceeds |
| Peak torque | — | 985.5 Nm |
In-runner frameless torque motors from 65 to 410 mm stator OD with 8-64 poles, low profile and large through-holes; windings tailored to target speed.
| Published maximum | TBM2G | TI Series In-Runner Frameless Direct D… |
|---|---|---|
| Continuous torque | 6.03 Nm | 70 Nm meets or exceeds |
Housed iron-core direct drive rotary motors with bearings and optical encoder, 110-360 mm frames, up to about 1 kNm peak at 600 VDC.
| Published maximum | TBM2G | ADR-A |
|---|---|---|
| Continuous torque | 6.03 Nm | 407.2 Nm meets or exceeds |
| Peak torque | — | 1,017.9 Nm |
| Speed | — | 2,000 rpm |
Figures are the highest published for each series and are not always measured the same way. A higher figure is not automatically a better choice: mounting, duty cycle, feedback, connectors and approvals matter too. An engineer will check the fit against your application before recommending anything.
Other frameless torque motor series
Spec builder
Specify what you need instead of TBM2G
Select every part you need, answer the questions an applications engineer would ask, and see your summary before we ask for any details.
- 1Products
- 2Performance
- 3Environment
- 4Volumes
- 5Your spec
Engineer support
Let our experienced engineers do the hard work for you
Tell us how you use the Kollmorgen TBM2G: the load, speed, duty and environment. Our engineers will confirm whether it is still the right part, find it for you, or propose an alternative that fits better.
- Reviewed by an engineer, not an autoresponder
- Like-for-like and better-fit alternatives
- Standard, modified and custom options
Prefer to configure it? Use the spec builder.