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- > No.000039 Roller Conveyor with Powered Rollers
No.000039 Roller Conveyor with Powered Rollers
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Combination of free-running rollers and motor powered rollers reduce the number of drive rollers
Relevant category
Conveyor rollers
| Product name | Conveyer Roller Shafts - Hollow |
|---|---|
| Part number | HROJS38-413 |
| Features | Set of Conveyor Rollers and Economical Hollow Rollers. |
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
Configurable conveyor rollers allow you to have the dimensional freedom of custom with the cost of standard.
Available sizes
■Conveyor rollers (Shaft & roller sets)
| Material | Surface treatment | Bearing | |||
|---|---|---|---|---|---|
| Roller | Shaft | Pin | Roller・Shaft・Pin | ||
| Core material | Wheel | ||||
| Carbon Steel | Steel | Steel | Steel | Trivalent chromate plating | Pressed bearing |
■Conveyor rollers (Shaft & roller sets)
| Roller length | Name No. | Roller O.D. | Shaft bore DIA. | Shaft length | Shaft(With pin) | |
|---|---|---|---|---|---|---|
| Nominal DIA. | Actual DIA. | |||||
| 113 163 213 263 313 413 513 | 19 | φ19.1 | φ6.2 | Roller length+22 | φ6 | φ5.9 |
| 22 | φ22.2 | |||||
| 28 | φ28.6 | φ8.2 | Roller length+22 | φ8 | φ7.85 | |
| 38 | φ38.1 | φ12.2 | Roller length+27 | φ12 | φ11.8 | |
| 42 | φ42.7 | |||||
| 50 | φ50.8 | |||||
| 57 | φ57.2 | |||||
*163 and 263 lengths for nominal No.22 are not available.
Performance info.
Roller Strength for Reference (N)
(N)
| Roller length(mm) | |||||||
|---|---|---|---|---|---|---|---|
| Name No. | 113 | 163 | 213 | 263 | 313 | 413 | 513 |
| 19 | 431 | 318 | 205 | 436 | 343 | 294 | 206 |
| 22 | 431 | − | 205 | − | 343 | 294 | 206 |
| 28 | 490 | 490 | 490 | 450 | 687 | 588 | 412 |
| 38 | 1342 | 1342 | 1342 | 1132 | 922 | 785 | 588 |
| 42 | 1667 | 1628 | 1589 | 1310 | 1030 | 883 | 745 |
| 50 | 1716 | 1628 | 1648 | 1584 | 1520 | 1442 | 1147 |
| 57 | 2354 | 2206 | 2059 | 1912 | 1765 | 1471 | 1157 |
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Application Overview
Purpose
- Roller conveyor with a combination of free-running rollers and powered rollers.
Target workpiece
- Plastic container: W350 x D430 x H200
Design Specifications
Operating Conditions or Design Requirements
- Conveyor dimensions: W475 x D1350 x H73
Selection Criteria for Main Components
- Space saving design driven with motor or gears.
Design Evaluation
Verification of main components
- Must ensure motor powered roller can withstand the work piece load.
- Motor roller selection
- ① Verification of required tangential force (Roller transfer capability)
Transferred weight M = 15 kg when rolling friction coefficient is μ=0.04
Required tangential force F (N) = 9.8 × M × μ = 9.8 × 15 × 0.04 = 5.88 N - ② Temporary selection of Part Number
MOR38-400-10 - ③ Determine required number of powered rollers when motor roller starting tangential force FK = 37.3 N
Transfer capacity FH (N) = FK × 0.9 = 37.3 × 0.9 = 33.57 N
Required number of powered rollers n = F / FH = 5.88 / 33.57 = 0.176 pc. (*1 roller is capable of transfer)
For safety purposes, design so that the load is always on two or more rollers. - ④ Determine roller length
From: Transferred load: Length (L = 400) x Width (W = 320), roller length: 400 (80mm margin) selected
- ① Verification of required tangential force (Roller transfer capability)
Other Design Consideration
- Design so that the load is always on a minimum of two rollers. Consider the bottom surface condition of the load, material, height difference of rollers, and the speed of the powered rollers which cause changes in transfer capacity.
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