The Wichard #63113 Single Plain Bearing Block is designed for sailors who need a strong, compact and lightweight block with a fixed attachment point.

Featuring a 45mm sheave, it accepts rope up to 10mm and offers an impressive 400kg working load despite weighing just 83g. The fixed-eye configuration provides a straightforward attachment solution for installations where a swivel head is not required.

45mm Sheave for 10mm Rope

The Wichard #63113 features a:

Sheave Diameter: 45mm

and is designed for:

Rope Size: up to 10mm

This combination makes it suitable for a wide range of sailing rope-control applications while keeping the overall dimensions compact.

Plain Bearing for High Loads

The #63113 belongs to Wichard’s Plain Bearing Block range.

This type of block uses a simple and robust bearing system designed to perform reliably when subjected to significant loads.

The result is a sailing block particularly well suited to applications where strength, durability and resistance to sustained loads are more important than the ultra-low friction required for continuously fast-running lines.

Fixed Eye Attachment

The main feature that distinguishes the #63113 from other 45mm Wichard blocks is its:

Fixed Eye

Unlike a swivel block, the attachment point does not rotate.

This makes the #63113 particularly suitable for installations where the direction of the rope is already defined and a simple, fixed and compact connection is preferred.

The absence of a swivel mechanism also contributes to the block’s compact overall size and very low weight.

400kg Working Load

Despite its compact construction, the #63113 has a:

Working Load: 400kg

This provides substantial working capacity for a single block weighing only 83g.

The high working load makes it a strong option for demanding sailing systems where the block must remain compact without compromising its load capability.

900kg Breaking Load

The manufacturer specifies a:

Breaking Load: 900kg

This should not be confused with the normal working load. Equipment selection and operation should always be based on the appropriate 400kg Working Load and the requirements of the complete installation.

Only 83g

One of the strongest advantages of the fixed-eye configuration is its excellent strength-to-weight ratio.

The complete block weighs only:

83g

while providing a 400kg working load and 900kg breaking load.

This makes the #63113 particularly attractive when you want to reduce unnecessary weight without sacrificing load capacity.

Compact Dimensions

The Wichard #63113 measures:

Height: 78mm
Width: 49mm
Thickness: 26mm

Its compact 78mm overall height is possible thanks to the fixed-eye design, making it particularly useful where installation space is limited.

Technical Specifications

Wichard’s technical data confirms the #63113 as the fixed-eye version of its 45mm single plain-bearing block, with a 400kg working load and 900kg breaking load.

Why Choose a Fixed Eye?

A fixed eye is a good solution when the block does not need to rotate around its attachment point.

It provides:

• Simple attachment
• Compact overall dimensions
• Low weight
• No unnecessary swivel mechanism
• Stable orientation in a correctly designed installation

If the direction of the rope is already clearly defined, a fixed-eye block can therefore provide a simple and efficient solution.

High Strength-to-Weight Ratio

At only 83g, the Wichard #63113 offers impressive load capacity for its size.

The combination of:

400kg Working Load

900kg Breaking Load

83g Weight

makes it an excellent option where both strength and weight reduction matter.

For sailors optimizing their deck hardware, this balance can be particularly valuable.

Why Choose the Wichard #63113?

• Premium Wichard sailing block
• Single 45mm sheave
• For rope up to 10mm
• Robust plain-bearing construction
• Compact fixed-eye attachment
• 400kg working load
• 900kg breaking load
• Weight only 83g
• Compact 78 x 49 x 26mm dimensions
• Excellent strength-to-weight ratio
• Suitable for demanding sailing applications
• Ideal where a swivel attachment is not required