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Design FeaturesJoining the travelling block and the hook together reduces overall length to satisfy the requirements of a top drive.
The shafts of travelling block are forged with alloy steel and provided with a lubrication hole of bearing for one sheave.
The grooves of sheave are intermediate frequency quenched so as to bearing has its own lubrication channel.
The sheaves are equipped with double-row conic roller bearings. Each bearing has its own lubrication channel.
There is a reliable safety device at the hook.
The primary-load carrying parts of hook are subject to NDE test.
The hook block assembly conforms to API Spec 8A/8C.
Technical Specifications of Travelling Block and Hook
| Model |
YG135
|
|
|
Max hook load
|
KN |
1350
|
|
(us ton) |
-150
|
|
|
O.D of sheaves
|
mm |
915
|
|
(in) |
(36”)
|
|
|
sheave Qty
|
4
|
|
|
wire rope Dia
|
mm |
26(29)
|
|
(in) |
1”(1 1/8”)
|
|
|
Main hook opening size
|
mm |
165
|
|
(in) |
(6 1/2”)
|
|
|
Main hook dia.
|
mm |
140
|
|
(in) |
(5 1/2”)
|
|
|
Assistan thook dia.
|
mm |
90
|
|
(in) |
(3 1/2”)
|
|
|
H weight
|
mm |
3195*960*616 |
|
kg |
3590
|
|
