Which chain type is this connecting link suitable for?

It is suitable for simplex roller chains of type 12B-1 according to British Standard (BS) with a pitch of 19.05 mm (3/4").

How is this connecting link secured?

This No. 11 connecting link is secured using cotter/split pins through the ends of the pins.

What is the breaking strength of this connecting link?

The breaking load of this link is 28900 N.

What are the dimensions of the pins and the inner width?

The pins have a diameter of 5.72 mm and a length of 21.9 mm. The inside width is 11.68 mm.

RENOLD BLUE 12B-1 No. 11 closing link simplex 3/4" - 12B1S11I

Name: RENOLD BLUE 12B-1 No. 11 closing link simplex 3/4" - 12B1S11I
Brand: RENOLD
SKU: 03030115
Price: 5.09 EUR
Availability: InStock

Supplier number: RENOLD 12B1S11I | EAN 6623901294930

5.09 tax incl.

€4.21 excl. VAT (incl. all environmental contributions)

On stock - immediately available

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

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Reliable connection for roller chains

Practical benefits

High breaking load performance: With a breaking strength of 28900 N, you transfer high mechanical drive forces with maximum stability.
Secure cottered pin locking: The cottered pin design prevents unintentional disconnection, keeping the chain link securely locked under heavy vibration.
Exact standard dimensions: Built with a 19,05 mm pitch, you connect simplex chains quickly and achieve a precise fit.

In a nutshell

The right choise for

With the Renold Blue 12B-1 No. 11 connecting link, you can quickly and reliably connect or repair simplex roller chains with a 19.05 mm pitch. This connecting link eliminates the need to replace an entire chain during maintenance or shortening in conveyor systems, machine building, and agricultural machinery. Thanks to a breaking strength of 28900 N, you transfer heavy drive forces with dependable stability. Featuring pins with a 5.72 mm diameter and 21.9 mm length, the cotter pin locking mechanism keeps the chain link firmly secured under severe operating vibrations.

Product information FAQ

€5.09

In stock - tax incl.

Key features according to our expert

Pitch: 3/4 inch; 19,05 mm
Length (pin): 21,9 mm
Product line: Renold Blue
Weight (kg/m): 1,22 kg/m
Thickness (outer plate): 1,81 mm
Type (ISO/ANSI): 12B-1
Height: 2,6
Inside width: 11,68 mm
Breaking strength: 28900 N
Diameter (pin): 5,72 mm
Thickness (inner plate): 1,81 mm
Plate height: 16 mm
Number of the connecting link: 11
Version (link): Simplex

Product description:

Conveyor chains, like roller chains, can be made to different international standards. The main standards are:

British Standard (BS):
- This standard applies to chains made for the British market and for markets where British presence has had a major influence on technical design and buying behaviour. This standard is based on Renold's original conveyor chain design.
ISO Standard chains:
- Chains made to the ISO Standard are not interchangeable with chains made to the BS or DIN Standard.
- This standard is widely used in the European market, except in Germany.
- Chains made according to this standard are becoming increasingly popular and are widely used in Scandinavia.
- Renold has a lot of experience in producing conveyor chains.
- Renold's conveyor chains are based on many years of design and development, allowing us to deliver the optimal product.
- To ensure that this quality is reflected in the performance of our products, we carry out strict checks on:
  - Materials
  - Heat treatment
  - Processes
  - Fittings
  - Attachment assembly
  - Lubrication
  - Conveyor Chain Exploded View
Ultimate Renold reliability:
- The key to the reliability of Renold chains is consistency in design and manufacturing.
- The chains' maximum strength and wear resistance are achieved by strictly controlling material specification and using state-of-the-art heat treatment processes.
- The consistent overall tolerability of Renold chains makes them ideal for conveyor systems that require precise alignment of different chain mechanisms.
- The breaking load is greater than the internationally required minimum.
- For optimum performance, it is important to choose the right chain.
- Renold's experienced design team is always at your disposal for free advice on specific products and applications.
- Standard and Deep Link conveyor chains are available for BS4116 part 4 and for ISO 1977, with both hollow and solid pins.
Extra strong standard conveyor chain:
- Complementing our standard range of conveyor chains to British Standard, we offer this extra strong chain suitable for conveyor applications requiring ultimate tensile strength (breaking load).
- Each chain has the same dimensions as its normal counterpart.
- For example, an extra strong chain of 11,000 kilos (24000 lbs) has the same dimensions as a normal chain of 5500 kilos (12000 lbs).
- This chain is frequently used to transport animal feed and unpackaged foodstuffs such as grain, corn, wheat and raw food mixtures.
- Most of these applications use scraper conveyor systems with large spacing between sprockets. Such systems sometimes move slowly, with little or no shock loading.

All Features

Pitch: 3/4 inch; 19,05 mm
Length (pin): 21,9 mm
Product line: Renold Blue
Weight (kg/m): 1,22 kg/m
Thickness (outer plate): 1,81 mm
Type (iso/ansi): 12B-1
Height: 2,6
Inside width: 11,68 mm
Breaking strength: 28900 N
Diameter (pin): 5,72 mm
Thickness (inner plate): 1,81 mm
Plate height: 16 mm
Number of the connecting link: 11
Version (link): Simplex

Brand RENOLD
03030115
EAN 6623901294930
Supplier number RENOLD 12B1S11I

Frequently asked questions about this product

Answered by specialists

Which chain type is this connecting link suitable for?: It is suitable for simplex roller chains of type 12B-1 according to British Standard (BS) with a pitch of 19.05 mm (3/4").
How is this connecting link secured?: This No. 11 connecting link is secured using cotter/split pins through the ends of the pins.
What is the breaking strength of this connecting link?: The breaking load of this link is 28900 N.
What are the dimensions of the pins and the inner width?: The pins have a diameter of 5.72 mm and a length of 21.9 mm. The inside width is 11.68 mm.