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Wednesday, December 30, 2015
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Tuesday, December 15, 2015
Sheave Pac® Bearing Assembly
Sheave Pac® Bearing Assembly
The Timken® Sheave Pac® bearing assembly provides an innovative maintenance solution for oil and gas drilling rig crown and traveling blocks and riser tensioners. Preset, pre-greased, and unitized, Timken Sheave Pac helps improve employee safety, increase uptime, simplify installation and virtually eliminates maintenance.
Design Attributes
- Preset, pre-greased, assembled and sealed at the factory - eliminating the risk of improper bearing setting and contamination and reduces the potential for bearing damage.
- Unitized assembly contains the bearing cones, bearing cup, triple-lip seals and grease – simplifying installation.
- "Sealed-for-life" design eliminates frequent inspections and re-lubrication – improving employee safety, uptime and productivity.
- Dimensionally interchangeable with current industry-standard bearing assemblies and seals, requiring no modification of the sheave bore.
- Designed to operate within existing industry-standard snap ring and groove dimensions.
Applications
Crown and traveling blocks and riser tensioners - On and Off Shore Oil and Gas Drilling Rigs
Key Features
- Optimized bearing cones and double cup - maintains internal geometry of previous designs to maximize radial and thrust load carrying capacity.
- Two-element, triple-lip sheave seals - provides triple lip “sealed-for-life” design. Stainless steel construction provides corrosion resistance in harsh land and sea environments.
- Unitizing ring - unitizes the bearing assembly to simplify and improve the rebuild process.
- Bore seal - designed to prevent water and contaminant ingress through the bore of the bearing.
- Grease is lithium-based NLGI #2. Temperature range is -40o F to 300o F (-40o C to 149oC).
Sheave Pac Part Numbers
The single Sheave Pac part number includes bearing, seals and grease, eliminating the need to order parts separately.
Description
|
Sheave Pac P/N
|
Current Sheave Bearing P/N
|
Bore
(inch/mm) |
O.D.
(inch/mm) |
Width
(inch/mm) |
14” Sheave Pac
|
NP195121-902A1
|
L163149NW / L163110CD
|
14.00/
355.60 |
17.5000/
444.50 |
5.375/
136.525 |
14” Sheave Pac
|
NP505533-902A1
|
AAAG314 / AAAG316
|
14.00/
355.60 |
17.5000/
444.50 |
5.000/
127.000 |
12” Sheave Pac
|
NP101986-902A1
|
L357049NW / L357010CD (SET811)
|
12.00/
304.80 |
15.5000/
393.70 |
4.250/
120.650 |
10” Sheave Pac
|
NP932743-902A1
|
LM249747NW / LM249710CD (SET809)
|
10.00/
254.00 |
13.6875/
347.66 |
4.000/
101.600 |
8” Sheave Pac
|
NP954426-902A1
|
LM241149NW / LM241110CD (SET807)
|
8.00/
203.20 |
10.8750/
276.23 |
3.750/
95.250 |
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