Roto Elite 35mm Door Lock Gearbox – Single or Double Spindle

Roto Elite Replacement Door Lock Gearbox – 35mm Backset, Single & Double Spindle

Replace a worn, damaged or faulty locking mechanism with this Roto Elite replacement door lock gearbox, designed for compatible uPVC and composite door multipoint locking systems.

Featuring a 35mm backset, this Roto Elite centre lock case is available in two configurations:

• Single Spindle – 92mm PZ

• Double Spindle – 92/62mm PZ

The replacement gearbox operates using a lift-lever locking mechanism and features a latch and deadbolt, an 8mm spindle fitting and a Euro-profile cylinder opening.

Ideal when the centre gearbox has failed but the remaining multipoint locking strip is still serviceable, replacing the gearbox can provide a cost-effective alternative to replacing the complete locking mechanism.

Key Features

• Roto Elite Replacement Gearbox – Replacement centre lock case for compatible Roto Elite multipoint door locking systems.

• 35mm Backset – Both spindle configurations feature a 35mm backset.

• Single Spindle Option – 92mm PZ, measured from the centre of the spindle hole to the centre of the Euro-profile cylinder.

• Double Spindle Option – 92mm upper PZ and 62mm lower PZ.

• Lift-Lever Operation – Designed for compatible lift-lever multipoint locking mechanisms.

• Latch & Deadbolt – Replacement centre case incorporating a latch and deadbolt.

• 8mm Spindle – Suitable for the corresponding handle spindle arrangement.

• Reversible Latch – The latch can be reversed by removing the small cross-head screw located at the latch.

• uPVC & Composite Doors – Suitable for compatible multipoint door locking systems.

• Replacement Centre Mechanism – An alternative to replacing the complete multipoint locking strip where compatible.

Dimensions & Technical Specifications

Choosing the Correct Spindle Configuration

Single Spindle – 92mm PZ

Select the single-spindle gearbox if your existing Roto Elite lock has one operating handle spindle hole with 92mm PZ centres.

This measurement is taken from the centre of the handle spindle hole to the centre of the Euro-profile cylinder opening.

Double Spindle – 92/62mm PZ

Select the double-spindle gearbox if your existing mechanism has two operating spindle positions.

• Upper spindle PZ: 92mm

• Lower spindle PZ: 62mm

The double-spindle configuration can be used with compatible handle arrangements that require separate spindle operation.

Important: Single-spindle and double-spindle mechanisms are not automatically interchangeable. Please match the original configuration before ordering.

How to Measure Your Replacement Gearbox

Before ordering, compare your existing gearbox with the product photographs and check:

1. Backset: 35mm from the faceplate edge to the centre of the spindle hole.

2. PZ Centres: 92mm for the single-spindle version or 92/62mm for the double-spindle version.

3. Gearbox Case Height: Compare the complete case height with your existing mechanism.

4. Case Width: 50mm.

5. Spindle Size: 8mm.

6. Latch & Deadbolt Positions: Check that their positions match your existing gearbox.

7. Fixing & Connection Points: Confirm compatibility with your existing multipoint locking strip.

When Might You Need a Replacement Gearbox?

Common signs of a faulty centre gearbox can include:

• A stiff or difficult-to-operate door handle.

• A handle that moves without correctly engaging the locking mechanism.

• Difficulty lifting the handle to engage the multipoint locking points.

• A jammed centre gearbox.

• A worn or damaged internal locking mechanism.

These symptoms may also result from door misalignment or faults elsewhere in the multipoint locking system.

Before fitting a replacement gearbox, check that the door is correctly aligned and that excessive strain is not being placed on the locking components.

Important Compatibility Information

Roto and Elite door locking systems have been manufactured in different designs and configurations.

Before ordering, please compare your original gearbox with the product photographs and verify the 35mm backset, spindle configuration, PZ centres, case dimensions, latch, deadbolt and fixing positions.

Matching the original manufacturer's markings and physical configuration is the best way to confirm compatibility.

Please note: This listing is for the replacement centre gearbox only, not the complete multipoint locking strip.

Need Help Identifying Your Roto Door Lock?

Not sure whether you require the Roto Elite single-spindle or double-spindle gearbox?

Contact Nigel Waters Hardware with clear photographs of your existing mechanism, including any manufacturer markings, together with your backset and PZ measurements.

Our team can help you identify a suitable replacement before ordering.