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Belt Length Calculations
About replacements of Belts and Plastic Chains
Please note the following when selecting and replacing belts.
- 1. Minimum Belt Pulley Diameter
-
There is a limit on minimum pulley diameter (bending diameter) of belts.
Confirm that the selection is applicable to the miniature conveyor pulley diameter by referring to the minimum belt pulley diameter. - 2. Calculations of Belt and Plastic Chain Lengths
- Calculate and confirm the belt and plastic chain lengths by referring to the table below.
- 3. Direction of Conveyance
- Some belts have specified direction of conveyance. Please note the specified direction of conveyance of belts when replacing the belts.
List of calculation formulas for belt length
| Part Number | Belt Type | Number of Track(s) | Drive Module Position | Pulley Dia. | Calculation Formula | Unit |
|---|---|---|---|---|---|---|
| SVKA | Flat Belts | Single Track | End | 30 | (2L+97)/1.002/1000 | m (2) |
| SVKB | Flat Belt (Guided Belt) |
30 | (2L+97)/1.002/1000 | m (2) | ||
| SVKN | Flat Belts | Center | 30 | (2L+A) / 1.002/1000 (6) | m (2) | |
| SVKR | Flat Belt (Guided Belt) |
30 | (2L+A) / 1.002/1000 (6) | m (2) | ||
| CVSA | Flat Belts | End | 30 | (2L+97)/1.002/1000 | m (2) | |
| CVSB | 50 | (2L+160)/1.002/1000 | m (2) | |||
| CVSN | Center | 30 | (2L+A) / 1.002/1000 (6) | m (2) | ||
| CVSP | 50 | (2L+A) / 1.002/1000 (6) | m (2) | |||
| CVSC | Flat Belt (Guided Belt) |
End | 30 | (2L+97)/1.002/1000 | m (2) | |
| CVSD | 50 | (2L+160)/1.002/1000 | m (2) | |||
| CVSR | Center | 30 | (2L+A) / 1.002/1000 (6) | m (2) | ||
| CVSW | 50 | (2L+A) / 1.002/1000 (6) | m (2) | |||
| CVSE | Flat Belts | End | 60/30 | (2L+161)/1.002/1000 | m (2) | |
| CVSF | Flat Belt (Guided Belt) |
60/30 | (2L+161)/1.002/1000 | m (2) | ||
| CVSX | Flat Belts | Center | 30 | (2L+284)/1.002/1000 | m (2) | |
| CVSY | Flat Belt (Guided Belt) |
30 | (2L+284)/1.002/1000 | m (2) | ||
| CVSSA | Stainless Steel Belts | End | 50 | (2L+160)/1000 | m (2) | |
| CVSFA | Flat Belts | 30 | (2L+97)/1.002/1000 | m (2) | ||
| CVSFB | 50 | (2L+160)/1.002/1000 | m (2) | |||
| CVSFC | Flat Belt (Guided Belt) |
End | 30 | (2L+97)/1.002/1000 | m (2) | |
| CVSFD | 50 | (2L+160)/1.002/1000 | m (2) | |||
| CVSJA | Center | 30 | (2L+262)/1.002/1000 | m (2) | ||
| CVSMA | Flat Belts | Motor Integrated | 70 | (2L+220)/1.002/1000 | m (2) | |
| CVSTC | Timing Belts | End | 19/20 | CVSTC10: (2L+130) / 5 | Tooth | |
| CVSTC20: (2L+165) / 5 | ||||||
| CVSTR | Center | 19/20 | CVSTR10: (2L+215) / 5 | Tooth | ||
| CVSTR20: (2L+240) / 5 | ||||||
| CVSTA | Two Rows | End | 30 | (2L+100)/5 | Tooth (3) | |
| CVSTB | 50 | (2L+180)/10 | Tooth (4) | |||
| CVSTN | Center | 30 | (2L+260)/5 | Tooth (3) | ||
| CVSTP | 50 | (2L+420)/10 | Tooth (5) | |||
| CVSPA | Plastic Chains | End | 57 (1) | (2L+179)/12.7 | Link | |
| CVGA | Flat Belts | Single Track | End | 30 | (2L+94) / 1000 | m (2) |
| CVGB | Flat belt (Guided Belt) |
30 | (2L+94) / 1000 | m (2) | ||
| CVGC | Flat Belts | 50 | (2L+160)/1000 | m (2) | ||
| CVGD | Flat belt (Guided Belt) |
50 | (2L+160)/1000 | m (2) | ||
| CVGN | Flat Belts | Center | 30 | (2L+A) / 1000 (6) | m (2) | |
| CVGP | Flat belt (Guided Belt) |
30 | (2L+A) / 1000 (6) | m (2) | ||
| CVGR | Flat Belts | 50 | (2L+A) / 1000 (6) | m (2) | ||
| CVGW | Flat belt (Guided Belt) |
50 | (2L+A) / 1000 (6) | m (2) | ||
| CVGTA | Timing Belts | Two Rows | End | 30 | (2L+100)/5 | Tooth (3) |
| CVGTB | 50 | (2L+180)/10 | Tooth (4) | |||
| CVGTN | Center | 30 | (2L+260)/5 | Tooth (3) | ||
| CVGTP | 50 | (2L+420)/10 | Tooth (5) |
- (1) Sprocket's P.C.D. is shown for Plastic Chains.
- (2) Round off the 3rd decimal place and below.
- (3) Round off all below the decimal point
- (4) Round all below the decimal point
- (5) Round up below the decimal point
- (6) For A Value, please refer to the chart below:
| Chart of A Value | SVKN | SVKR | CVSN | CVSP | CVSR | CVSW | CVGN / CVGP | CVGR / CVGW | |
|---|---|---|---|---|---|---|---|---|---|
| Typical | 270 | 270 | 270 | 333 | 270 | 333 | 270 | 330 | |
| HR MR |
One End Knife Edge Roller | 257 | 257 | 253 | 293 | 257 | 298 | 250 | 300 |
| WR | Both Ends Knife Edge Roller | 244 | 244 | 292 | 308 | 244 | 263 | 240 | 260 |
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