Which chain size is this cranked link designed for?

This simplex double cranked link (link number 30) fits roller chains with a 1/2" (12.7 mm) pitch and an inner width of 3.3 mm (1/8").

What is the function of a double cranked link?

You use a double cranked link (number 30) to connect or adjust a roller chain with an odd number of pitches.

What is the breaking load of this link?

This Renold A&S link has a breaking strength of 8900 N.

What are the roller and pin dimensions?

The link has a roller diameter of 7.75 mm, a pin diameter of 4.09 mm, and a pin length of 9.8 mm.

A&S 111041S30I, reducer simplex 1/2 inch - 1351-30

Supplier number: A&S 1351-30 | EAN

5.38 tax incl.

€4.45 excl. VAT (incl. all environmental contributions)

On stock - immediately available

The minimum purchase order quantity for the product is 10.

Ordered before 20:00 - delivered as of 09/10/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL
Delivered from Belgium

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Reliable chain connection for drive systems

Practical benefits

High strength of 8900 N: With a breaking strength of 8900 N, you ensure maximum security and stability under tensile loads.
Exact fit for chains: Designed with a 12,7 mm pitch, this double cranked link connects seamlessly to 1/2" simplex chains.
Smooth and efficient operation: The 7,75 mm roller diameter ensures precise meshing with sprockets to minimize mechanical wear.

In a nutshell

The right choise for

With the A&s 111041S30I double cranked link simplex 1/2" x 1/8", you easily adjust or close roller chains when an odd number of links is required. This Renold A&s link prevents the need for a full chain replacement during maintenance and repairs on industrial chain drives and conveyor systems. Featuring an accurate 12.7 mm pitch, a 3.3 mm inside width, and a 7.75 mm roller diameter, it engages smoothly with your sprockets. With a dependable breaking strength of 8900 N, you restore the drive line quickly with optimal strength and reliability.

Product information FAQ

€5.38

In stock - tax incl.

Key features according to our expert

Pitch: 1/2 inch; 12,7 mm
Thickness (inner plate): 1,13 mm
Product line: Renold A&S
Number of the connecting link: 30
Weight (kg/m): 0,3 kg/m
Length (pin): 9,8 mm
Height: 2
Thickness (outer plate): 0,98 mm
Plate height: 9,6 mm
Version (link): Simplex
Diameter (pin): 4,09 mm
Diameter (roller): 7,75 mm
Breaking strength: 8900 N
Inside width: 3,3 mm

Product description:

The Renold A&S roller chain has long been known for its high quality, affordability, reliability and performance.
The chain has gained a strong reputation for its excellent wear resistance, high fatigue resistance and durability.
These factors have contributed to Renold A&S becoming the most widely used chain brand in Europe.
The Renold A&S chain is available with European (BS) and ANSI specifications and with a full range of standard M, K and extended bearing pin attachments.
The chain can even be supplied with a lubricant based on the customer's specific requirements.
Available in sizes with pitch ranging from 4 mm to 2.5 inches
Solid extruded bushing
Solid extruded roller
Plates with wider blades
Hardened and glass bead blasted blades
Comprehensive European (BS) and ANSI range
Wide range of fasteners available
Lubricant of choice to meet customer requirements

All Features

Pitch: 1/2 inch; 12,7 mm
Thickness (inner plate): 1,13 mm
Product line: Renold A&S
Number of the connecting link: 30
Weight (kg/m): 0,3 kg/m
Length (pin): 9,8 mm
Height: 2
Thickness (outer plate): 0,98 mm
Plate height: 9,6 mm
Version (link): Simplex
Diameter (pin): 4,09 mm
Diameter (roller): 7,75 mm
Breaking strength: 8900 N
Inside width: 3,3 mm

Brand A&S
03050802
EAN
Supplier number A&S 1351-30

Frequently asked questions about this product

Answered by specialists

Which chain size is this cranked link designed for?: This simplex double cranked link (link number 30) fits roller chains with a 1/2" (12.7 mm) pitch and an inner width of 3.3 mm (1/8").
What is the function of a double cranked link?: You use a double cranked link (number 30) to connect or adjust a roller chain with an odd number of pitches.
What is the breaking load of this link?: This Renold A&S link has a breaking strength of 8900 N.
What are the roller and pin dimensions?: The link has a roller diameter of 7.75 mm, a pin diameter of 4.09 mm, and a pin length of 9.8 mm.