renold_gy12b1s30i

RENOLD GY12B1S30I reducer SYNERGY 12b-1 - simplex 3/4 inch

Supplier number: RENOLD GY12B1S30I | EAN 6623900916208
22.40 tax incl.
€18.51 excl. VAT (incl. all environmental contributions)
On stock - immediately available

  • 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

Precise chain adjustment with the double cranked link 12B-1

Practical benefits
  • Accurate pitch fitment: You adjust chains with an odd number of links effortlessly using the standard 19,05 mm pitch.
  • High tensile breaking strength: Rated for a breaking load of 28900 N, you maintain safe and dependable power transmission under load.
  • Durable wear-resistant design: Precision-engineered pins and rollers reduce friction, ensuring smooth operation across your industrial drive system.

In a nutshell

The right choise for

With the Renold Synergy GY12B1S30I double cranked link, you can adapt your drive system precisely whenever an odd number of links is required. Designed specifically for 12B-1 simplex roller chains to British Standard with a 19.05 mm (3/4") pitch, this number 30 connecting link ensures a dependable fit. Rated for a breaking strength of 28900 n and featuring exact dimensions, including a 12.07 mm roller diameter and 11.68 mm inner width, it restores continuous power transmission and eliminates unwanted chain slack in heavy-duty industrial machinery.



€22.40
In stock - tax incl.

Product information

Key features according to our expert

  • Pitch: 3/4 inch; 19,05 mm
  • Thickness (inner plate): 1,81 mm
  • Product line: Renold Synergy
  • Number of the connecting link: 30
  • Weight (kg/m): 1,22 kg/m
  • Length (pin): 21,9 mm
  • Height: 2,6
  • Thickness (outer plate): 1,81 mm
  • Plate height: 16 mm
  • Type (ISO/ANSI): 12B-1
  • Version (link): Simplex
  • Diameter (pin): 5,72 mm
  • Diameter (roller): 12,07 mm
  • Breaking strength: 28900 N
  • Inside width: 11,68 mm

Product description:


Renold Synergy - Made to be better:

  • The Renold Synergy has an outstanding reputation as the only, true high-performance roller chain on the market.
  • This reputation is based not only on the years of research and testing that preceded its design, but also on the feedback from engineers around the world who have experienced and endorse the wear resistance, fatigue resistance and exceptional longevity of the Renold Synergy themselves.

Improved fatigue resistance:

  • The design of blade and connector optimises pressure distribution and fatigue performance.
  • The Renold Synergy performs, on average, 30 per cent better than other brands under repeated shock loads and continuous heavy loads.
  • Fatigue Comp

Better wear resistance:

  • Independent tests show that the Renold Synergy performs up to six times better than the competition's highest performance chain.

Made to perform:

  • Every part of Renold Synergy precisely engineered using state-of-the-art development methods such as Finite Element Analysis (FEA). It all contributes to chain performance that is more than the sum of its parts.

Wide range of sizes:

  • Renold Synergy chain is available in British Standard dimensions from 06B to 24B in simplex, duplex and triplex construction. In addition, ANSI Standard sizes are available from 35 to 160 in simplex, duplex and triplex construction.

Scale shape:

  • High blade profile for improved stress distribution; maximised blade thickness within the limitations of the standard.

Bushings:

  • Solid extruded bushings deliver improved roundness and strength compared to rolled bushings. Chamfered ends improve the bearing section and extend service life.

Hole quality:

  • 'Triple punch holing' techniques ensure correct pin and bushing position for even wear.

Fixed fit:

  • Optimised to ensure maximum service life.

Fatigue resistance:

  • Prestressed surfaces increase fatigue resistance.

Wear resistance:

  • Chamfered parts and special surface coating of the pin increase wear resistance.

Connecting link:

  • Has a unique design that ensures that all parts of the chain system are equally strong.

All Features

Pitch
3/4 inch; 19,05 mm
Thickness (inner plate)
1,81 mm
Product line
Renold Synergy
Number of the connecting link
30
Weight (kg/m)
1,22 kg/m
Length (pin)
21,9 mm
Height
2,6
Thickness (outer plate)
1,81 mm
Plate height
16 mm
Type (iso/ansi)
12B-1
Version (link)
Simplex
Diameter (pin)
5,72 mm
Diameter (roller)
12,07 mm
Breaking strength
28900 N
Inside width
11,68 mm
  • Brand RENOLD
  • EAN 6623900916208
  • Supplier number RENOLD GY12B1S30I

Frequently asked questions about this product

Answered by specialists
Which chain type is this double cranked link compatible with?
It is designed for Renold Synergy 12B-1 simplex roller chains with a 19.05 mm (3/4") pitch.
What is the purpose of a number 30 double cranked link?
It allows you to build or adjust a roller chain with an odd number of pitches.
What are the key dimensions of this connecting link?
It features a 19.05 mm pitch, a 12.07 mm roller diameter, and an inner width of 11.68 mm.
What is the breaking load of this 12B-1 link?
This simplex link has a minimum breaking strength of 28900 N.
How do you fit this link into an existing chain?
It connects directly between chain ends using standard chain connecting links.
Questions about this product?

Our product specialists are happy to help with any questions about this range. Call, email or chat with us!

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