304 Stainless Steel U-Groove Pulley Block 400KG Heavy Duty

304 Stainless Steel U-Groove Pulley Block with Duplex Bearing – 400KG / 880 lb Capacity

Upgrade your gates, industrial carts, sliding doors, and rigging projects with this heavy-duty 304 Stainless Steel U-Groove Pulley Block. Engineered for demanding applications, it combines a corrosion-resistant stainless steel wheel with a silent dual ball-bearing core for smooth, reliable performance every time.

Made in Mainland China.

Key Features

• Premium 304 Stainless Steel Construction: The U-groove wheel is crafted from 304 stainless steel, offering exceptional strength, durability, and outstanding resistance to corrosion and deformation — ideal for both indoor and outdoor use.
• Silent Duplex Bearing Design: Two carbon steel ball bearings inside the pulley minimize friction for whisper-quiet, ultra-smooth rotation. The thickened steel plate bracket and reinforced wheel core further enhance load-bearing performance.
• Impressive 400KG / 880 lb Max Load: Rated for up to 400 kg (880 lbs), this pulley block handles heavy-duty tasks with ease, from sliding gates and cantilever doors to industrial carts and rope systems.
• Easy Removable Installation: The pulley is designed to be removable for fast, hassle-free installation. The thicker wheel profile compared to standard pulleys means greater strength and a more secure fit.
• Versatile Applications: Suitable for power gates, rolling dog/pet gates, baby gates, garden gates, assembly fixtures, container racks, inverted tracks, and a wide range of industrial and DIY projects.
• Anti-Slip Clamping Spring: Keeps ropes or wires firmly seated in the groove for added safety during operation.

Specifications

Wide Range of Applications

• Sliding gates & cantilever doors
• Rolling pet gates & garden gates
• Industrial carts & assembly fixtures
• Container racks & inverted track systems
• Rope and wire traction systems

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Frequently Asked Questions

Q: What rope or wire diameter is compatible with this U-groove pulley block?

A: This pulley block is designed to accommodate ropes or wires with a diameter of 10 mm or less. The groove width is 16 mm and groove depth is 12 mm, providing a secure fit for standard ropes, cables, and wires used in gates and rigging applications.

Q: Is this pulley block suitable for outdoor use?

A: Yes! The wheel body is made from 304 stainless steel, which offers excellent corrosion resistance, making it well-suited for both indoor and outdoor environments, including areas exposed to moisture or the elements.

Q: How much weight can this pulley block handle?

A: This heavy-duty pulley block is rated for a maximum load of 400 KG (880 lbs). The thickened steel plate bracket, reinforced wheel core, and dual ball-bearing design all contribute to its impressive load-bearing capacity.

Q: Does the pulley operate quietly?

A: Yes. The duplex bearing design features two internal carbon steel ball bearings that significantly reduce friction, resulting in smooth, near-silent operation — ideal for use in residential gate systems or noise-sensitive environments.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.