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Domů>Produkty>Vyvrtávejte struny>Square Kelly a Hexagonal Kelly

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Square Kelly a Hexagonal Kelly


  • Technické parametry
  • Technické parametry

Hlavní technické vlastnosti

● Both square Kelly and hexagonal Kelly is available as per customers’ requirements.

● Designed & Manufactured according to API SPEC 7-1.

● Square& Hexagonal kelly are made from AISI 4145H modified alloy bars that are quenched

and tempered full length. After such heat treatment, its brinell hardness can reach 285-341.

Kelly’s’end, drive cross-section and joint are all processed and tested conform to API criterion

Kelly Size Délka Upper Box Connection Lower Pin Connection ID
(Mm)
Driving Section
mm in mm Type(LH) OD (mm) Vlákno OD (mm) Cross Flat (mm)
For Square (mm) Cross Corner for Hex (mm)
Std
volitelný
Std
volitelný
63.5 2-1/2
12.19 6-5/8
REG
4-1/2
REG
196.8 146
 
85.7 31.8 63.5
83.3
76.2 3
12.19
6-5/8
REG
4-1/2
REG
196.8 146 NC26 104.8 44.4 76.2 100 85.7
88.9
3-1/2 12.19
6-5/8
REG
4-1/2
REG
196.8 146
NC31 120.6 57.2 88.9 115.1 100.8
108
4-1/4 12.9 6-5/8
REG
4-1/2
REG
196.8 146
NC38 158.8 71.4 108 141.3 122.2
NC38 161.9 71.4 108
141.3 122.2
133.4 5-1/4 12.9 6-5/8
REG
4-1/2
REG
196.8 146
NC46 177.8 82.6 133.3 175.4 151.6
NC50 177.8 82.6 133.3 175.4
151.6
152.4
6 12.9 6-5/8
REG

196.8 146 5-1 / 2FH

152.4
173
NC56

152.4
173


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