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Product Description
Product Description: The Western HS-303B Series 7000 lb Manila Rope Steel Shell Block is a robust triple-groove rigging block designed for use with manila rope cable up to 1 inch in diameter in general rigging, construction, marine, and industrial applications where maximum mechanical advantage and multi-part line reeving are required at heavy capacity. Steel shell blocks offer the durability and strength of an all-steel construction suited to demanding field and industrial rigging environments. The HS-303B Series is rated to a 7000 lb working load limit and is well matched to heavy duty rigging applications where manila rope is the preferred or specified line material and a triple-groove configuration is required for compound block and tackle arrangements with 1 inch rope.
The three 4-3/4 inch sheave grooves allow this block to be used in multi-part line reeving arrangements with up to three rope parts running through the block simultaneously, enabling significant mechanical advantage and increased effective lifting capacity when configured in a compound block and tackle system. The sheaves run on self-lubricating bronze bushing bearings, a proven and low-maintenance bearing solution well suited to field rigging environments where regular lubrication may not always be practical. Self-lubricating bronze bushings deliver consistent performance across a range of operating conditions, resist corrosion, and provide reliable service life in both indoor and outdoor applications without requiring frequent maintenance intervention. The 8 inch block size accommodates the 1 inch rope diameter and three 4-3/4 inch sheaves in a steel shell block form factor suited to heavy duty rigging configurations, and the 7000 lb working load limit reflects the substantial capacity enabled by the triple-groove reeving arrangement.
The HS-303B Series steel shell block in this 1 inch rope configuration is designed for integration into compound block and tackle systems and rope-based lifting and pulling arrangements where a dependable heavy-capacity triple-groove manila rope block in a steel shell configuration is required. The block is compatible with standard rigging hardware including hooks and shackles rated to the appropriate working load limit. All connected rigging components must be rated to 7000 lb or greater, and the block must be inspected before each use in accordance with applicable lifting and rigging safety standards. Manila rope must be inspected for wear, fraying, and degradation before each use and replaced when signs of deterioration are present.
Material: Steel shell block body Steel sheaves Self-lubricating bronze bushing bearings
Compatible With: Manila rope cable up to 1 in diameter Hooks, shackles, and rigging hardware rated to 7000 lb or greater General rigging and compound block and tackle systems configured for 1 in manila rope and triple-groove reeving
Uses: General construction site lifting and rigging operations Multi-part line and compound block and tackle lifting and pulling assemblies Marine and boat rigging applications Industrial and shop rigging tasks Heavy duty field rigging requiring maximum mechanical advantage in a triple-groove steel shell block for 1 in manila rope
Key Features: 7000 lb working load limit HS-303B Series designation Triple groove - 4-3/4 in sheave outside diameter 8 in block size suited to 1 in manila rope in a steel shell form factor Enables multi-part line reeving for significant mechanical advantage in compound lifting systems Accommodates manila rope cable up to 1 in diameter Self-lubricating bronze bushing bearings for low-maintenance reliable performance Durable all-steel shell construction
Note: All connected rigging hardware must be rated to the working load limit of this block. Inspect the block, sheaves, bearings, and all attachment points before each use. Inspect manila rope for wear, fraying, and deterioration before each use and replace when necessary. Follow applicable lifting and rigging safety standards and do not exceed the rated working load limit.
| Specification | Value |
|---|---|
| Sheave Outside Diameter | 4-3/4in |
| Maximum Cable Size | 1in |
| Cable Type | Manila Rope |
| Bearings | Self-Lubricating Bronze Bushing |
| Load Capacity | 7000lb |
| Series | N-303B |
| Dimensions | 8in |