Linear Motion Components

Servo Belt Linear Drive (SBL), Medium

ServoBelt Linear actuators redefine the classic belt drive, putting belts to work in an entirely new way that reduces the positioning errors and speed limitations of conventional belt drives.

High Performance, Low Cost. With speeds up to 4 m/s, accuracy to ± 4 µm per meter and bi-directional repeatability of ± 1 encoder count, ServoBelt Linear compares favourably to high-end linear motor drives costing thousands more.

Limitless Scalability. With a chassis based on standard Bosch-Rexroth T-slot extrusions, ServoBelt Linear can be engineered for travel distances up to 50 meters to create large-format motion systems.

Multiple Carriages and Axes. A single ServoBelt Linear axis will support multiple carriages with independent motion. Multi-axis configurations include Cartesian motion systems and gantry robots.

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TECHNICAL SPECIFICATIONS	SBL-M ServoBelt Linear Medium
Type	Rotary Drive Linear, NEMA 23, 34 or user motor.
Recommended Maximum Payload (lb)Payload x Acceleration = Linear Force	100
Linear travel per motor revolution (mm)	75
Bearing type	Preloaded 4-row ricirculating ball, standard or corrosion resistant
Maximum Length	5.5 m with single-piece chassis Virtually limitless travel distances with chassis splices
Motor type	3-phase brushless servo or user supplied of any type
Accuracy (µm)Linear accuracy at stage centerline, after two point temperature scale correction.	Linear optical encoder: ±4/meter Rotary encoder: ±135/full travel
Uni-directional repeatability (µm)Achievable under ideal conditions.	±10
Bi-directional repeatability (µm)	±25 to ±125 depending on deceleration profile.
Angular deviation (±arc-sec)Yaw angle maximum in the plane of the base. Most chassis are flexible enough that this value is generally the achievable number when the unit is straightened on user surface.	±20
Encoder type and resolutions: rotary (CPR), linear (µm)	16KCPR (NEMA 23), 16KCPR (NEMA 34) rotary motor encoder; 1 µm magnetic linear; 1 µm, 0.5 µm, 0.2 µm, 0.1 µm optical linear
Speed (m/sec)	4
Max continuous linear force (lbf)Linear force at carriage, based on a range of standard motors.	70 single carriage 55 dual carriage
Max shear for 10⁶m @ 2 m/sec (N)	2028 (single rail) 4057 (double rail)
Max pitch and yaw moment for 10⁶m @ 2 m/sec (N-m)	110 (single rail) 220 (double rail)
Max roll moment for 10⁶m @ 2 m/sec (N-m)	25 (single rail) 183, 365, 232 (-180, -270, -90S)
Moving mass and Chassis mass	Refer toconfigurator, depends on carriage style and motor selections.
Ultimate dynamic belt lifeOut-and-back cycles to belt failure at load in Newtons.	30M Cycles @ 112N 20M Cycles @ 225N 15M Cycles @ 337N 2M Cycles @ 450N
Minimum chassis size (mm)	45 x 45
Bearings style-size (mm)	dual-20 or single-20

Servo Belt Linear Drive (SBL), Medium

Servo Belt Linear Drive (SBL), Medium

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