Dormakaba Dorma Top Centre 8066 Upper Portion (DO8066U)
The Dormakaba DO8066U is the upper portion for the Dorma Top Centre 8066 used on double action doors in Dorma BTS floor spring systems. It combines a frame portion with an adjustable pin for deeper profiles and a door portion with a needle bearing to support smooth pivoting.
Key Features
- Upper portion for the Dorma Top Centre 8066 assembly used on double action doors.
- Needle bearing design to support smooth pivot action in high-cycle openings.
- Steel construction for heavy-duty commercial door applications.
- Frame portion includes an adjustable pin for deep profiles up to 16 millimetres.
- Top centre assembly can be supplied with pins extended by 10 millimetres for deeper profile preparations.
- Maximum supported door weight up to 300 kilograms (when used in a compatible system).
Specifications
- Item Code: DO8066U
- Product: Dorma Top Centre 8066 Upper Portion
- Manufacturer Reference: 46020036
- Suits: Dorma BTS series floor spring systems
- Door Type: Double action doors
- Bearing Type: Needle bearing
- Material: Steel
- Profile Adjustment: Adjustable pin for deep profiles up to 16 millimetres
- Extended Pin Option: Pins extended by 10 millimetres can be supplied for deeper profiles
- Maximum Door Weight: 300 kilograms
What's In The Box
- 1 × Dorma Top Centre 8066 upper portion (DO8066U)
Suitable Uses
- Service or replacement part for double action doors fitted with Dorma BTS floor spring systems.
- Commercial aluminium and glass door installations requiring a top centre assembly.
- Door preparations where adjustable pin positioning is required to suit deeper profiles.
Dimensions
Frequently Asked Questions
- Is this the complete top centre assembly?
No. DO8066U is the upper portion of the Dorma Top Centre 8066 assembly. - What floor spring range does this suit?
It is listed as suiting the Dorma BTS series floor spring systems. - What should be checked during installation or replacement?
Check door and frame preparation depth and confirm correct pivot alignment. Incorrect alignment can lead to binding and accelerated bearing wear.
Additional Information
- This part is typically used where the door or frame profile depth needs adjustment so the pivot line matches the floor spring spindle.
- If the site has deeper-than-standard aluminium framing, the extended pin option (plus 10 millimetres) is commonly used to maintain correct engagement.
- When servicing a floor spring door, inspect the mating components for wear marks that can indicate misalignment, not just bearing failure.
