

R2A Series
The R2A Series offers a carriage bearing design that produces lower bearing friction, smoother operation and zero running clearance. A flexible seal prevents environmental contamination and ensures long life to provide an effective, industrial-grade solution. Belt-drive models offer the most rapid moves, while screw-drive designs offer the highest thrust capacity and repeatability.

Features
Motors available for use with the R2A Series include:
- Kollmorgen T22T and T31T Series hybrid stepper motors
- Kollmorgen R2A-AKM23C, and 23D Series AKM™ brushless servo motors
- NEMA 23, 34 and custom motor mounts
Features
- Lead screw, ball screw or timing belt drives
- Max length: 1,829 mm (72 in)
- Max thrust: 450 N (100 lbf), screw models
- Max speed: 2,000 mm/s (80 in/s), belt models
- Stepper, brushless servo and custom motor options
- Internal guide bearings:4 angular contact bearings with a ground Gothic arch raceway running on dual precision rails
- Bearing housing: Type 380 die-cast aluminum, epoxy coated
- Carriage assembly: 6063-T6 aluminum, hard-anodized
- Guide housing: 6063-T6 aluminum, hard-anodized, Teflon-impregnated
- Acme screw: 0.625" diameter alloy steel screw, bronze nut
- Ball screw: 0.625" diameter hardened alloy steel screw; alloy steel, heat-treated ball nut
- Belt drive: 0.5" wide polyurethane with steel reinforcement cords
- Helical gearing: alloy steel, case-hardened
Options
- Standard or custom lengths to 0.1 inches
- English or metric carriage mount
- Motor or screw brakes
- Magnetic home and limit sensors
- Single or dual carriages
- Belt or helical gear, parallel or inline direct transmission
- Water resistance protection
Specifications
MECHANICAL SPECIFICATIONS | Ball Screw Drive | Lead Screw Drive | Belt Drive |
---|---|---|---|
Max. Stroke Length, mm (in) | 1830 (72) | ||
Profile, mm (in) | 51 x 51 (2 x 2) | ||
Guide Type | Roller Guides | ||
Screw Leads (in/rev) | 0.5, 0.2 | 0.2, 0.125 | |
Screw Diameter (in/rev) | 0.625 | 0.625 | |
Bearing | 4-Gothic arch raceway on dual precision rails | ||
PERFORMANCE SPECIFICATIONS | Travel life standard: 25.4 km (1,000,000 in) | ||
Max. Thrust Force, N (lbf) | 450 (100) | 320 (72) | |
Max. Velocity, mm/s (in/s) | 760 (30) | 2000 (80) | |
Max. Carriage Load: | |||
Normal, N (lb) | 22 (5) | ||
Roll Moment, N-m (lb-in) | 5.6 (50) | ||
Pitch Moment, N-m (lb-in) | 11.3 (100) | ||
Repeatability, mm (in) | +/-0.025 (0.001) | +/-0.25 (0.010) | |
Max Duty Cycle (%) | 100 | 60 | 100 |
Limit Sensors | Optional | Optional | Optional |
Std. Operating Temp Range, °C (°F) | -28 to +60 (-20 to +140) | ||
Environment | IP 44 rated: Splash-proof, protected against ingress of solid particles greater than 0.040 <1 mm> diameter. |
Media & Downloads
Title | File Language | Date | Share URL |
---|---|---|---|
R-Series-Perform-Curves en-US | English | |
Share URL /sites/default/files/public_downloads/RSeries_Perform_Curves_en-US.pdf |
R2A/R3/R4 Series Rodless Actuators Operator's Manual | English | |
Share URL /sites/default/files/public_downloads/Rseries_Users_Manual_en-US_rev1_0.pdf |
Title | Language | Date | Share URL |
---|---|---|---|
Kollmorgen R Series Linear Positioners Selection Guide | English | Share URLview |
These 3D models are intended to guide your design activities and may be used as reference information. Be sure to consult a Kollmorgen expert to ensure you have the most current and accurate information for critical aspects of design work.
Title | File Language | Date | Share URL |
---|---|---|---|
R2A Series | English | |
Share URL http://productpage.3dpublisher.net/3dproductpage/Qsvalidlogin.asp?GUID=1249850940083&%3Bname=R2A%20Series&%3BCate=false |
Support
Trade Compliance | ![]() |
February 21, 2023 |

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