Anchor Chain Roller Wheel for Ship Deck Chain Guide | CB/T 290

Product Specification

Anchor Chain Roller Wheel for Ship Deck Chain Guide | CB/T 290

Product Overview

The CB/T 290 anchor chain roller wheel is a ship deck chain guide used to control the running direction of anchor chain in the anchor handling arrangement. It is mainly used for left-right chain guidance and smoother chain movement, rather than chain holding or locking. In a typical deck arrangement, it is installed together with a cast steel guillotine chain stopper and positioned between the chain stopper and the anchor windlass according to the vessel drawing.

The roller wheel is made for anchor chains from 12.5 mm to 68 mm nominal diameter and can be supplied with welded deck mounting or bolted mounting according to the installation requirement. A cast steel wheel rotates around a well-greased shaft, helping the chain pass more smoothly while reducing local dragging between the chain and deck equipment. Final mounting details, chain lead direction, deck reinforcement, and certificate scope should be confirmed according to the project drawing.

Quick Specifications

• Product function: anchor chain roller guide → guides the anchor chain direction and helps the chain move smoothly; it is not a chain stopper.
• Standard: CB/T 290-1995 → reference for model selection, main dimensions, and weight for ship anchor chain roller wheels.
• Typical installation: between cast steel guillotine chain stopper and anchor windlass → used as a chain lead guide in the deck anchor arrangement.
• Chain diameter range: 12.5 mm to 68 mm → covers common small and medium ship anchor chain sizes in the supplied table.
• Weight range: 12.7 kg to 832.3 kg → useful for handling, packing, freight estimation, and deck installation planning.
• Main materials: ZG230-450 cast steel, stainless steel, and C-Mn steel according to supplied specification → final material scope should be confirmed before order.
• Shaft lubrication: well-greased shaft arrangement → supports flexible roller rotation and easier maintenance.
• Surface treatment: Sa 2.5 blasting + one layer epoxy shop primer as reference → polished, galvanized, or customized finish can be discussed according to project requirement.

Main Technical Parameters

Selection & Inquiry Guide

Step 1: Confirm CB/T 290-1995 anchor chain roller wheel and select Type 14 to Type 68 according to the nominal anchor chain diameter.

Step 2: Confirm the deck arrangement, especially the chain lead between the cast steel guillotine chain stopper and the anchor windlass.

Step 3: Confirm whether the roller wheel will be welded on deck or bolted to the mounting foundation; deck reinforcement and bolt / weld details should follow the vessel drawing.

Step 4: Confirm chain lead direction, chain stopper type, windlass position, and whether the roller is required for newbuilding, replacement, or repair.

Step 5: Confirm material requirement, shaft lubrication arrangement, surface treatment, and any stainless steel or galvanized requirement before quotation.

Step 6: Confirm certificate scope before order: maker certificate, material certificate, class certificate, witness inspection, or other project requirement.

Step 7: Provide quantity, delivery destination, required delivery time, GA drawing, installation drawing, and reference photos if available.

Structure

Cast steel roller wheel | Grease-lubricated shaft | Mild steel / C-Mn steel side wall | Deck welded or bolted mounting interface | Anchor chain contact groove | Chain direction guide arrangement | Shop primer or specified surface treatment

Chain Guiding & Engineering Advantages

• The product is designed as an anchor chain guide for direction control. Chain holding, locking, and load securing should be handled by the matched anchor chain stopper.
• The roller wheel helps guide the anchor chain left or right in the deck lead arrangement, reducing direct chain dragging on fixed deck structures.
• A well-greased shaft allows the wheel to rotate more flexibly during chain movement, which is important for smooth anchor chain passing and maintenance access.
• The product can be arranged with a cast steel guillotine chain stopper and anchor windlass, but the actual position should follow the vessel GA drawing and deck equipment layout.
• The supplied size range from Type 14 to Type 68 allows selection by chain diameter instead of using an oversized guide without checking the chain lead route.
• Welded or bolted mounting can be discussed according to the vessel structure; deck reinforcement, mounting pad, bolt grade, and weld details should be confirmed by the shipyard or design office.
• Surface preparation such as Sa 2.5 blasting and epoxy shop primer helps prepare the product for marine coating systems, while final coating should follow the vessel painting specification.

Custom Attributes

• Standard: CB/T 290-1995 → used as the main reference for anchor chain roller wheel model, dimensions, and weight.
• Product Type: Anchor chain roller wheel → chain direction guide for deck anchor arrangements, not a chain stopper.
• Chain Diameter: 12.5–68 mm → select the roller wheel type according to the nominal anchor chain size in the vessel drawing.
• Installation Position: Between chain stopper and anchor windlass → typical arrangement when used with cast steel guillotine chain stopper; final position should be confirmed by GA drawing.
• Mounting Form: Welded on deck or bolted mounting → confirm installation method, foundation, and reinforcement before production.
• Wheel Material: ZG230-450 cast steel according to supplied specification → final material traceability and certificate scope should be confirmed before order.
• Side Wall / Support Material: Mild steel or C-Mn steel according to supplied specification → actual steel grade should follow project requirement.
• Shaft Lubrication: Well-greased shaft → supports flexible roller rotation and helps reduce maintenance difficulty.
• Surface Treatment: Sa 2.5 blasting + epoxy shop primer, polished, galvanized, or customized finish → final coating system should be confirmed by project specification.
• Certificate Requirement: Available according to project requirement → class approval or witness inspection should be confirmed before quotation.

How It Works

Anchor chain moves from the windlass side → Chain contacts the rotating roller wheel → The well-greased shaft supports smooth wheel rotation → The roller guides the chain direction toward the chain stopper / chain lead route → The chain stopper provides holding or locking when required

Applications

Small and medium ships | Deck anchor chain guide arrangements | Anchor windlass and chain stopper matching installations | Anchor recess positioning assistance | Newbuilding projects | Replacement and repair of deck chain guide equipment

Certifications & Advantages

Certificates can be arranged according to project requirement, inspection scope, material traceability, and class society approval procedure.

Certification: CCS, NK, BV, ABS, DNV, LR, KR, IRS, RS, RINA, CRS, Makers Test Certificate.

Drawing & Photos

FAQ

Q1: Is the CB/T 290 anchor chain roller wheel a chain stopper?

A1: No. This product is used to guide the anchor chain direction and support smoother chain movement. It should not be described as a chain stopper. Chain holding or locking should be provided by the matched anchor chain stopper according to the vessel arrangement.

Q2: How should the correct roller wheel type be selected?

A2: Select the type according to the nominal anchor chain diameter, chain lead direction, deck arrangement, chain stopper position, windlass position, and available mounting space. The supplied table provides the main dimensions and weight for initial selection and quotation.

Q3: What information is needed before quotation?