40mm Roller Blind Mechanism Kit – Control, Brackets & Chain

Replacement 40mm Roller Blind Mechanism Kit

Repair your roller blind without replacing the complete blind.

This replacement mechanism kit contains the main operating components required for a compatible 40mm roller-blind tube. It includes a chain-operated control mechanism, idle-end pin, metal fixing brackets and your choice of plastic or metal operating chain.

Kit includes

• 1 × chain-operated control mechanism

• 1 × idle-end pin

• 2 × metal fixing brackets

• 1 × operating chain in your selected type and loop drop

Fixing screws, wall plugs and a child-safety device are not included.

Key features

• Designed for compatible 40mm roller-blind tubes

• Choice of plastic or metal operating chain

• Made-to-order continuous metal chain available

• Suitable for top, face or recess fixing

• Strong metal fixing brackets

• White mechanism components

• Suitable for repairing or replacing a worn roller-blind control system

Choose your chain

White plastic chain

Available in the following finished loop drops:

• 50cm

• 75cm

• 100cm

Nickel-coloured metal chain

Available in the following finished loop drops:

• 50cm

• 75cm

• 100cm

• 125cm

• 150cm

• 175cm

• 200cm

• Custom length

The metal chain is manufactured as a continuous loop with no separate connector.

How to measure the chain loop drop

Loop drop is the measurement from the top of the chain loop to the bottom when the loop is pulled straight.

It is not the total length around the loop. For example, a 100cm loop drop uses approximately 200cm of chain.

If ordering a custom metal chain, enter the required finished top-to-bottom loop drop in centimeters.

Please measure carefully. Custom-made continuous metal chain cannot be altered after it has been manufactured.

Check your roller tube

This kit is designed for a compatible 40mm roller-blind tube.

To check your tube:

1. Remove the blind from its brackets.

2. Carefully remove the existing mechanism.

3. Measure directly across the outside of the metal tube.

4. Confirm that the outside diameter is approximately 40mm.

5. Compare the internal tube profile with the mechanism shown in our photographs.

Do not measure around the circumference of the tube.

Tube profiles can vary between manufacturers. A 40mm outside diameter does not always guarantee that the mechanism will fit.

If you are uncertain, contact us before ordering and include:

• A photograph of the end of the roller tube

• A photograph of the existing mechanism

• The tube’s outside diameter

Installation

Insert the control mechanism into one end of the roller tube and the idle-end pin into the opposite end. Secure the brackets to a suitable surface, then install the assembled blind into the brackets.

The control can normally be fitted on either the left or right side of the blind.

Always make sure the brackets and safety device are securely installed.

Child-safety information

Looped blind chains must be securely restrained and kept out of the reach of children.

An appropriate chain-tensioning safety device must be fitted. Always follow the blind manufacturer’s fitting and safety instructions.

If your existing safety device is missing or damaged, add a replacement Blind Cord & Chain Safety P Clip to your order.

Important compatibility information

• Suitable for compatible 40mm roller-blind tubes

• Not suitable for 32mm roller-blind tubes

• Not suitable for vertical blinds

• Compatibility depends on both the tube diameter and its internal profile

• Check all measurements and product photographs before ordering

Compatibility is the customer’s responsibility. Please contact us before purchasing if you need help identifying your mechanism.