API Certified Roller Kelly Bushings
Roller Kelly Bushing Specifications
1.Light Duty Roller Kelly Bushing
|
Model |
20-MDP |
17-MDP |
LDS |
|
Max Torque |
13729 N·m (10126 ft·lbf) |
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|
Drive Type |
Square |
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|
Square Kelly Size |
63.5-133.35 mm (2 1/2-5 1/4 in) |
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|
Hexagonal Kelly Size |
76.2-107.95 mm (3-4 1/4 in) |
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|
Dimensions |
458×458×700 mm (18×18×27.5 in) |
508×508×700 mm (20×20×27.5 in) |
|
|
Weight |
460 kg (1012 lb) |
340 kg (750 lb) |
400 kg (808 lb) |
2.Medium-Duty Roller Kelly Bushing
|
Model |
20-HDP |
MDS |
|
Max Torque |
13729 N·m (10126 ft·lbf) |
|
|
Drive Type |
Square |
Pin Shaft |
|
Square Kelly Size |
63.5-133.35 mm (2 1/2-5 1/4 in) |
|
|
Hexagonal Kelly Size |
76.2-107.95 mm (3-4 1/4 in) |
|
|
Dimensions |
493×493×696 mm (19.4×19.4×27.4 in) |
510×510×720 mm (20×20×28.3 in) |
|
Weight |
670 kg (1470 lb) |
420 kg (924 lb) |
3. Heavy Duty Roller Kelly Bushing
|
Model |
HDS |
27-HDP |
|
Max Torque |
32365 N·m (23871 ft·lbf) |
22555 N·m (16636 ft·lbf) |
|
Drive Type |
Square |
Pin Shaft |
|
Square Kelly Size |
76.2-152.4 mm (3-6 in) |
63.5-133.35 mm (2 1/2-5 1/4 in) |
|
Hexagonal Kelly Size |
76.2-152.4 mm (3-6 in) |
76.2-107.95 mm (3-4 1/4 in) |
|
Dimensions |
630×630×740 mm (24.8×24.8×29.1 in) |
630×630×780 mm (24.8×24.8×30.7 in) |
|
Weight |
700 kg (1540 lb) |
730 kg (1610 lb) |