< PreviousBELL-EVERMAN | AUGUST 2022 ServoBelt’s overall length (OAl) will be the sum of your carriage length from the Carriage Table, hardstop dead length from the Hardstop Table and travel in 10-mm increments. ServoBelt Linear can also be analyzed in a number of motor sizing programs as a rack-and-pinion system. Use 23.87 mm as the pitch diameter for the Light and Medium models and 63.66 mm as the pitch diameter for the Heavy Model. • Convert your desired acceleration to g’s. • Determine moving weight in pounds by adding payload, carriage, motor and gearhead weights. • Calculate linear force as weight × g’s. • Refer to Maximum Force Table and verify your application forces are under the recommended value. • Refer to Lifecycle Expectations Table for the approximate life of the upper belt based on your application’s force as percentage of Maximum Recommended. 1. -90 implies a single rail with two 4-hole 20 mm bearing blocks, -180 and -270 are dual rail. 2. ServoBelt Light not available with multi-carriage other than as a special. 3. ServoBelt Heavy always gets a gearhead because of its large pinion diameter. We have belt reducers available to allow a linear encoder loop closure. 4. Linear encoder requires use of long carriage. Our SBL stages come in Heavy, Medium and Light versions to meet a variety of force requirements. Type Dead Length, Standard (in.) Dead Length, Heavy Style (in.) SBL-L 25N/A SBL-M-90 10N/A SBL-M-LT-90 0N/A SBL-M-180 10115 SBL-M-LT-180 085 SBL-M-270 1085 SBL-M-LT-270 055 SBL-H-90 25N/A SBL-H-LT-90 00 SBL-H-180 10115 SBL-H-LT-180 00 SBL-H-270 1085 SBL-H-LT-270 00 TypeLength (mm) Minimum Multi-carriage Spacing (mm) SBL-L SHORT 110N/A SBL-L LONG 160N/A SBL-M-ALL 190250 SBL-M-LT-ALL 220230 SBL-H-ALL 280370 SBL-H-LT-ALL 430440 1. Stops are hard rubber. Consult engineering for shock absorbers.LINEAR POSITIONING | 11 Repeatability depends on the application’s acceleration profile. Here is a range for all three models. SBL models differ primarily in the amount of linear force they can deliver. As a function of recommended operating forces. SBL Heavy SBL Medium SBL Light Repeatability, mm Bi-directional Uni-directional 0.050 0.005 0.005 0.010 0.050 0.100 50 100 100 200 500 1,000 SBL Light Recommended Ultimate Force, lbs SBL Medium SBL Heavy 0 10 20 30 40 50 1251005025 Recommended Linear Force, % Millions of Cycles Bi-directional repeatability can be greatly enhanced by experimentation with deceleration values. Ask us about this. Ultimate Force Capacity is the load at which the belt will skip around the drive pinion. It is a non-destructive event but not intended as a repetitive overload protection. 1. Life curve extrapolated from test data. 2. At end of life, failure mode is detachment of a tooth from its reinforcement. 3. Replacement of the upper belt is all that would be required. 4. Life assumes a light, one time coat of mesh with food grade mineral oil. 5. Life numbers generated without retensioning or relubrication.BELL-EVERMAN | AUGUST 2022 The following chart lists specifications for the motors we supply. ServoBelt ™ also supports equivalent motors chosen or supplied by our customers. ServoBelt quotes assume that we will modify an adapter plate if necessary, though your motor may already be in our large database of adapter plates. Customer-furnished motors are installed after stage burn-in. If using our motors, refer to this table for a motor’s maximum speed at a particular bus voltage. Note that Teknic Motors with integrated Clearpath drives do not exceed 75 vdc, or 4,500 RPM. Motor Motor Type # of Poles Cont. Stall Torque KV VMAX 24VDCVMAX 48VDCVMAX 75VDC VMAX 150VDCVMAX 300VDC Cont. Output T-MAX @V-MAX Motor Weight Inertia Inductance Resistance oz- in in-lb V/ kRPM Max RPM at stated DC bus voltagewattsoz-inin-lblb oz-in- sec 2 lb-in 2 kg-m 2 mHohm OUR ROTARY MOTORS Teknic 2311S3-PH BLDC8603.7512.38700250045006000600022851.03.21.38 0.00110.0265430.0000077665 2.9322.760 Teknic 2311P3-PH BLDC8603.756.192900600060006000600022851.03.21.38 0.00110.0265430.0000077665 0.7330.690 Teknic 2321S3-PH BLDC81147.12521410150027006000600039990.05.62.05 0.00230.0554990.0000162390 3.6622.464 Teknic 2321P3-PH BLDC81147.12510.51750390060006000600039990.05.62.05 0.00230.0554990.0000162390 0.9150.616 Teknic 2331S3-PH BLDC81539.562526.53301150215049006000525118.07.42.41 0.00350.0844550.0000247115 3.5452.418 Teknic 2331P3-PH BLDC81539.562513.2515003200520060006000525118.07.42.41 0.00350.0844550.0000247115 0.8860.605 Teknic 2341S3-PH BLDC8183 11.4375 35.36230900155037506000458102.06.42.76 0.00490.1182370.0000345961 4.5852.980 Teknic 2341P3-PH BLDC8183 11.4375 17.6810502350380060006000458102.06.42.76 0.00490.1182370.0000345961 0.7451.146 Teknic 3411S3-PH BLDC81509.37528.362301000200046006000471106.06.63.10.01 0.24130.0000706044 3.9003.000 Teknic 3411P3-PH BLDC81509.37514.1810002650450060006000471106.06.63.10.01 0.24130.0000706044 0.9750.750 Teknic 3421S3-PH BLDC82881846.76230700120027506000665142.08.94.6 0.02060.4970780.0001454450 4.7912.496 Teknic 3421C3-PH BLDC82881823.387001650275060006000665142.08.94.6 0.02060.4970780.0001454450 1.1980.624 Teknic 3431S3-PH BLDC84002549.08230700120027005000656119.07.46.2 0.02950.7118350.0002082829 3.4521.420 Teknic 3431C3-PH BLDC84002524.547401650275050005000656119.07.46.2 0.02950.7118350.0002082829 0.8630.355 Teknic 3441S3-PH BLDC847829.87578.788035072016503600657223.0 13.9 7.88 0.04010.9676130.0002831236 6.6402.637 Teknic 3441P3-PH BLDC8461 28.8125 39.39350930162235504200657108.06.87.88 0.04010.9676130.0002831236 1.66O0.659LINEAR POSITIONING | 13 Custom Gantry Lab Automation SystemBELL-EVERMAN | AUGUST 2022 DUTY CLASS Chassis X-Section (mm x mm) h x w DescriptionFigure SBL-L ight Single Rail 30x601A 60x601B 30x601A 60x601B SBL-M edium Single Rail 45x902A 45x1802B 45x2702C 90x1802D 90x902E 180x902F SBL-H eavy Single Rail 45x902G 45x1802H 45x2702I 90x1802J 90x902K 180x902L SBL-Medium Single Rail 45x454A 90x454B 180x454C 270x454D SBL-H eavy Single Rail 45x454E 90x454F 180x454G 270x454H short carriage (no linear encoder) linear encoder- capable carriage horizontal larger extrusion wrap around vertical larger extrusionLINEAR POSITIONING | 15 Maximum Axial Force (lb)Chassis Stiffness (million lb/in 2 ) Chassis Weight (lb/in) Stall0.5 m/s2 m/s4 m/sVertical DirectionHorizontal Direction 35272118 460.20 19110.26 460.20 19110.26 104806253 18360.44 261910.53 4210091.14 1353390.86 85570.51 4621040.86 313230200182 18360.49 261910.58 4210091.19 1353390.90 85570.56 4621040.90 104806253 4120.32 36110.44 242170.53 1111321.14 313230200182 4120.37 36110.49 242170.59 1111321.19BELL-EVERMAN | AUGUST 2022 DUTY CLASS Chassis X-Section (mm x mm) h x w DescriptionFigure SBL-M edium Dual Rail 45x1803A 45x2703B 90x1803C 90x903D 180x903E SBL-H eavy Dual Rail 45x1803F 45x2703G 90x1803H 90x903I 180x903J SBL-M edium Dual Rail 45x1805A 45x2705B SBL-H eavy Dual Rail 45x1805C 45x2705D horizontal larger extrusion horizontal larger extrusion vertical larger extrusion vertical larger extrusion wrap aroundLINEAR POSITIONING | 17 Maximum Linear Force (lb) At SpeedChassic Stiffness (million lb/in 2 ) Chassis Weight (lb/in) Stall0.5 m/s2 m/s4 m/sVertical DirectionHorizontal Direction 104806253 332590.69 5312181.29 1644081.01 116620.66 5891091.01 313230200182 332590.74 5312181.34 1644081.06 116620.71 5891091.06 104806253 328200.69 1351351.14 313230200182 328200.74 1351351.34BELL-EVERMAN | AUGUST 2022 LowBoy Linear Actuators Precise, modular electromechanical positioning systems. With three different drive mechanisms available in the same compact, aluminum chassis, LowBoy Linear Actuators let you choose the ideal price-to-performance ratio for your application. The Right Drive. The drive offerings for LowBoy Linear positioning systems offerings consist of: • Precision Ball Screw • Air-core Linear Motor • Iron-core Linear Motor The price differential between the lowest and highest fidelity in a given size is roughly 20 percent. Accurate and Repeatable Linear Positioning. These linear actuators have bi-directional repeatabilities of ±0.5 µm for the linear motor models and ±5 µm for the ball screw. All models offer integrated position feedback devices for closed-loop control. High Force Capabilities. LowBoy Linear Actuators are available now in lengths up to 1,600 mm and can exert continuous linear forces as high as 1,540 N, depending on the drive mechanism. Compact, Protected Chassis. LowBoy Linear Actuators use one of two low-profile aluminum chassis designs. The Light versions use an 80-mm high by 120-mm wide chassis while the Medium versions have an 80-mm high by 180-mm wide chassis. Both chassis designs feature an integrated cover to protect the drive mechanism from contamination. Easy Integration. With their compact chassis designs, LowBoy Linear Actuators provide bolt- on integration into any machine requiring a reliable, accurate positioning system.LINEAR POSITIONING | 19 Configure Online: bell-everman.com/lowboyNext >