Rod actuator
Thomson Warner Linear B-Track K2
Rugged rod actuator from the Warner Linear range with acme or ball screw, DC or single-phase AC motors and optional integrated limit and feedback controls.
Key specifications
| Ingress protection | IP66 / IP69K |
|---|---|
| Temperature | -29–65 °C |
| Force (max) | 12,460 N |
| Stroke (max) | 610 mm |
| Linear speed (max) | 73 mm/s |
| Screw type | acme (K2G) or ball (K2XG) |
| Supply | 12, 24 Vdc (36, 48, 90 Vdc on request); 1x115, 1x230 Vac |
| Duty | 25% at full load, 25 C |
| Sizes | K2G05 acme: 1,335 N; 73 mm/s no load (DC), K2G10 acme: 2,225 N; 37 mm/s (DC), K2G20 acme: 3,338 N; 18 mm/s (DC), K2G30 acme: 4,896 N; 12 mm/s (DC), K2XG05 ball: 2,670 N DC (2,225 N AC); 67 mm/s (DC), K2XG10 ball: 5,340 N; 37 mm/s (DC), K2XG20 ball: 9,790 N; 19 mm/s (DC), K2XG30 ball: 12,460 N; 11 mm/s (DC) |
Summarised in our own words from Regal Rexnord's published data; series maxima, individual models vary. Last checked 2026-10-29. Source 1 · Source 2
Notes on this data
Strokes published in inches (4, 6, 8, 12, 18, 24 in); 24 in x 25.4 = 609.6 mm, rounded to 610 (converted). Loads/speeds metric as printed. Static load 13,345 N (3,000 lbf) fully retracted. Datasheet conflict: ordering key lists higher acme loads (e.g. G10 2,670 N, G30 6,675 N) than spec table (2,225 / 4,896 N); table values used. Training overview gives 1.3-12.4 kN, 100-600 mm, IP54/IP69K. Applications not listed in datasheet.
Specify Motion is not affiliated with Regal Rexnord. Thomson and Warner Linear B-Track K2 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 Thomson 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.
General-purpose electric rod actuator in six sizes with solid, bronze or ball screws and inline or reverse-parallel motor mounting; a broad pneumatic/hydraulic replacement workhorse.
| Published maximum | Warner Linear B-Track K2 | RSA-ST (standard thrust) |
|---|---|---|
| Force | 12,460 N | 17,917 N meets or exceeds |
| Stroke | 610 mm | 1,524 mm meets or exceeds |
| Speed | 73 mm/s | 3,124 mm/s meets or exceeds |
Ball-screw servo electric cylinder in seven frame sizes from 32 to 150, with inline or reverse-parallel motor mounting and optional force sensing, aimed at hydraulic and pneumatic replacement.
| Published maximum | Warner Linear B-Track K2 | SRB Linear Servo Actuator |
|---|---|---|
| Force | 12,460 N | 49,033 N meets or exceeds |
| Stroke | 610 mm | 1,000 mm meets or exceeds |
| Speed | 73 mm/s | 1,250 mm/s meets or exceeds |
Economical stainless-tube electric rod actuator in sizes 10, 15 and 20, aimed at replacing pneumatic cylinders for gating, sorting and diverting; SS1/SS2 options give an all-stainless, IP69K washdown build.
| Published maximum | Warner Linear B-Track K2 | ERD (incl. ERD-SS1 / ERD-SS2 stainless… |
|---|---|---|
| Force | 12,460 N | 2,224 N |
| Stroke | 610 mm | 610 mm meets or exceeds |
| Speed | 73 mm/s | 1,016 mm/s meets or exceeds |
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 rod actuator series
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