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Heavy Duty Sheaves for Crown Block, Traveling Block, Hook Block, and Mast - China Suppliers and Factory
Product Specifications
| Product Name | Heavy Duty Sheave |
| Application | Used in Crown Block, Traveling Blocks and Hook Blocks, Mast and Derrick |
| Sheave OD | 600 mm ~ 1800 mm |
| Groove Diameter | 26 mm ~ 46 mm |
| This flexibility allows our products to be adapted to rig models from 1000 HP to 3000 HP. | |
| Material | 45# Alloy Steel (AISI 1045 / JIS S45C) |
| Temperature Rating | -40°C to 120°C |
| Service Life | 8 ~ 10 years under normal drilling conditions, with periodic bearing and groove maintenance as required. |
| Standard | Produced under API 8C |
| Third Party Inspection | Bureau Veritas (BV), CCS, ABS, SJS etc. |
Product Features
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★High Strength Materials: Forged and welded sheave bodies, typically manufactured from 45# or equivalent alloy steels, deliver excellent load-bearing performance and resistance to fatigue cracking.
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★Precision Groove Machining: Rope grooves are heat-treated and induction hardened to reduce wear and extend rope service life.
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★Comprehensive Inspection: Each sheave undergoes ultrasonic and magnetic particle testing before shipment, ensuring structural integrity and compliance with API 8C.
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★Customizable Options: Available for different sheave diameters, groove sizes, and rope capacities, with designs compatible with BOMCO, LS NOV, HONGHUA, RG and other international rig companies.
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★Proven Manufacturing Expertise: With more than a decade of production experience, we are a professional source factory for sheaves in China, supplying both domestic and international oilfield markets.
As a source manufacturer, we supply sheaves fully compatible with major OEM equipment from BOMCO, LS NOV, Honghua, RG and other well-known drilling equipment brands. Customers can expect high interchangeability, strict compliance with API 8C requirements, and production traceability from raw material to final inspection.
Contact for more details about the Sheave which used for HONGHUA, RG, RONGSHENG, EMSCO, LSNOV.
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Product Details
Frequently Asked Questions (FAQ)
Q What is the available size range for your heavy duty sheaves?
Our heavy duty sheaves are available with an outer diameter (OD) ranging from 600 mm to 1800 mm, with groove diameters from 26 mm to 46 mm, covering rig capacities from 1000 HP to 3000 HP.
Q What material is used in the manufacturing of your sheaves?
Our sheaves are manufactured using 45# Alloy Steel (equivalent to AISI 1045 / JIS S45C), providing excellent load-bearing capacity and fatigue resistance suitable for heavy oilfield drilling applications.
Q Are your sheaves compatible with major international rig brands?
Yes. Our sheaves are fully compatible with major OEM rig equipment from BOMCO, LS NOV, Honghua, RG, RONGSHENG, EMSCO, and other well-known international drilling equipment brands, ensuring high interchangeability.
Q What quality standards and certifications do your sheaves comply with?
All our sheaves are produced in accordance with API 8C standards. Third-party inspection reports are available from recognized bodies including Bureau Veritas (BV), CCS, ABS, and SJS, and each sheave undergoes ultrasonic and magnetic particle testing before shipment.
Q What is the expected service life of your heavy duty sheaves?
Under normal drilling conditions with periodic bearing and groove maintenance, our sheaves are designed to deliver a service life of 8 to 10 years. The operating temperature range is -40°C to 120°C.
Q Can sheaves be customized to meet specific project requirements?
Yes. We offer customizable options including different sheave diameters, groove sizes, and rope capacities. As a professional source factory with over a decade of manufacturing experience, we provide full production traceability from raw material selection to final inspection and delivery.