Sekoahelo sa selemo sa Telescopic sprial se entsoe ka moqhaka oa tšepe oa selemo oa boleng bo holimo 'me se phekoloa ka mocheso ho sireletsa screw ea bolo, shaft le likarolo tsa rod. Sleeve e sireletsang ha e kopane le setho se sirelelitsoeng ka flange e bohareng e kentsoeng lipheletsong tse peli tsa setho se sirelelitsoeng. Tšireletseho ea khokahano pakeng tsa sleeve e sireletsang le flange e bohareng e bonoa ka matla a eona a pele a ho hatella, kahoo e tsitsitse ts'ebetsong, e tenyetseha ebile e tenyetseha, 'me e na le lerata le tlase haholo. Bokaholimo bo botšo ebile boa benya, 'me bo tsamaisana le likarolo tse ngata tsa flange mochining.
Sleeve ea tšireletso ea lebanta la tšepe e potolohang e etselitsoe ho latela liparamente tse kang bophara ba screw ea bolo, likarolo tsa shaft le tsa rod, le sebaka sa ho tsamaea. Ka hona, mekhoa e latelang ea sebelisoa ha ho odara:
1. Basebelisi ba khethoa ho latela litlhaloso tse tloaelehileng tse fanoeng ke fektheri ea rona.
2. Basebelisi ba fana ka sleeve e sireletsang D, Lmax, Lmin (tlhoko e khethehileng D2)
E hlophisitsoe le ho etsoa ke fektheri ea rona, theko e baloa ho latela litlhaloso tse tloaelehileng.
1. Lesela la sekoahelo se sireletsang sa tšepe e potolohang le entsoe ke mosebelisi. Feme ea rona e fana ka litšoantšo.
Theko ea odara ea bongata ba 2 e tla ba le theolelo
3.D2 ha e hlokehe ntle le boholo bo khethehileng ba dikgetsi.
| Litlhaloso | Lmax(mm) | Lmin (mm) | D1 (mm) | D2 (mm) | Litlhaloso | Lmax(mm) | Lmin (mm) | D1 (mm) | D2 (mm) |
| 20-250-30 | 250 | 30 | 20 | 40 | 70-400-80 | 400 | 80 | 70 | 95 |
| 30-250-45 | 250 | 45 | 3 | 41 | 70-750-100 | 750 | 100 | 70 | 94 |
| 30-450-50 | 450 | 50 | 030 | 50 | 70-1400-120 | 1400 | 120 | 70 | 104 |
| 30-600-50 | 660 | 50 | 30 | 56 | 70-1800-120 | 1800 | 120 | 70 | 120 |
| 40-300-45 | 300 | 45 | 40 | 54 | 75-400-80 | 400 | 80 | 75 | 89 |
| 40-550-50 | 550 | 50 | 40 | 67 | 75-600-100 | 600 | 100 | 75 | 95 |
| 40-800-80 | 800 | 80 | 40 | 65 | 75-900-120 | 900 | 120 | 75 | 97 |
| 40-950-80 | 950 | 80 | 40 | 69 | 75-1200-120 | 1200 | 120 | 75 | 104 |
| 50-550-50 | 550 | 50 | 45 | 73 | 75-1600-1100 | 1600 | 110 | 75 | 115 |
| 45-700-80 | 700 | 80 | 45 | 68 | 80-400-80 | 400 | 80 | 80 | 94 |
| 45-900-100 | 900 | 100 | 45 | 70 | 80-600-120 | 600 | 120 | 80 | 97 |
| 45-1000-100 | 1000 | 100 | 45 | 73 | 80-900-110 | 900 | 110 | 80 | 105 |
| 50-500-50 | 500 | 50 | 50 | 72 | 80-1200-120 | 1200 | 120 | 80 | 115 |
| 50-700-80 | 700 | 80 | 50 | 70 | 80-1400-120 | 1400 | 120 | 80 | 120 |
| 50-900-100 | 900 | 100 | 50 | 77 | 85-400-80 | 400 | 80 | 85 | 100 |
| 45-1200-100 | 1200 | 100 | 50 | 84 | 85-600-100 | 600 | 100 | 85 | 105 |
| 55-350-50 | 350 | 50 | 50 | 72 | 85-800-125 | 800 | 125 | 85 | 106 |
| 55-550-80 | 550 | 80 | 55 | 72 | 85-1000-125 | 1000 | 125 | 85 | 126 |
| 55-800-80 | 800 | 80 | 55 | 78 | 85-1200-125 | 1200 | 125 | 85 | 132 |
| 55-1000-120 | 1000 | 120 | 55 | 77 | 90-400-100 | 400 | 100 | 90 | 105 |
| 55-1400-110 | 1400 | 110 | 55 | 86 | 90-600-100 | 600 | 100 | 90 | 111 |
| 60-400-50 | 400 | 50 | 60 | 79 | 90-800-125 | 800 | 125 | 90 | 111 |
| 60-600-80 | 600 | 80 | 60 | 78 | 90-900-125 | 900 | 125 | 90 | 127 |
| 60-900-100 | 900 | 100 | 60 | 87 | 90-1200-125 | 1200 | 125 | 90 | 137 |
| 60-1200-120 | 1200 | 120 | 60 | 88 | 95-400-100 | 400 | 100 | 95 | 110 |
| 60-1600-120 | 1600 | 120 | 60 | 98 | 95-600-125 | 600 | 125 | 95 | 112 |
| 65-400-50 | 400 | 0 | 65 | 85 | 95-800-125 | 800 | 125 | 95 | 130 |
| 65-700-80 | 700 | 80 | 65 | 87 | 95-1000-125 | 1000 | 125 | 95 | 137 |
| 65-1000-100 | 1000 | 100 | 65 | 95 | 100-600-120 | 600 | 125 | 100 | 118 |
| 65-1400-110 | 1400 | 110 | 65 | 99 | 100-800-120 | 800 | 120 | 100 | 135 |
| 65-1800-110 | 1800 | 110 | 65 | 109 | 120-600-125 | 600 | 125 | 120 | 150 |