Identify a W&H Handpiece Bearing by Model and Assembly
“Synea Vision” and “Synea Fusion” are product lines, not bearing part numbers. W&H lists both air turbines and motor-driven straight/contra-angle handpieces under Synea. Identify the instrument type and the complete model before comparing a removed bearing.
W&H Synea model names: turbine or contra-angle?
| W&H product line | Examples in current W&H catalogue | Part inquiry starts with |
|---|---|---|
| Synea Vision turbine | TK-94, TK-97, TK-98, TK-100 | Exact TK suffix, coupling and turbine assembly |
| Synea Fusion turbine | TG-97, TG-98 | Exact TG suffix, coupling and turbine assembly |
| Synea Vision contra-angle | WK-99, WK-56 | Exact WK suffix and head/gear assembly |
| Synea Fusion contra-angle | WG-99, WG-56 | Exact WG suffix and head/gear assembly |
Device-name sources: W&H Synea turbines and W&H Synea straight and contra-angle handpieces. These are examples from W&H’s catalogue, not this site’s stock list, a bearing cross-reference or an OEM endorsement. Older and regional models may use other labels.
A loose bearing inquiry also needs its original marking, front/rear position and dimensions; see our bearing size measurement guide. The steps below show what to send for a part review.
- Complete model: Copy every character and suffix from the instrument label. Synea Vision and Fusion each include different turbine and contra-angle models; the model table above is a device-name guide, not a fit claim. For an older label, send a photo and its original documentation rather than guessing a current equivalent.
- Assembly and position: State whether the part came from a turbine cartridge or a contra-angle head or gear assembly. Identify front or rear bearing position if known. The assembly type matters when comparing a candidate.
- Removed bearing: Photograph both faces and copy the full marking exactly as found. Record the front or rear position if known. Do not select a bearing code from a generic brand list or infer a model-to-code pairing without the specific assembly reference.
- Drawing and specification: Add the source of any measured dimensions or drawing. Request the exact proposed part code and its documented dimensions, closure, materials, cage, tolerance and lubrication before deciding on fit.
- Quote details: State quantity and delivery country, then ask for availability, written quote terms and the model-specific fit reference for the proposed part.
Use the dental bearing guide and the high-speed or low-speed categories to narrow the search. Category membership alone does not confirm W&H fit.
Verify Fit and Service Conditions for a W&H Handpiece
- Exact assembly: Confirm the complete handpiece model, turbine cartridge or contra-angle head reference, and front or rear bearing position. A Synea or WA family name alone is insufficient.
- Exact proposed bearing: Request the part code and item-specific drawing or specification. Compare dimensions, closure, ring and ball materials, cage, tolerance and lubrication where documented. Equal nominal dimensions or a similar photograph do not prove interchangeability.
- Reprocessing and symptoms: Follow the applicable W&H model’s service and reprocessing instructions. A generic cage or lubricant description does not establish an autoclave-cycle rating. Heat, noise and run-out can have causes beyond the bearing; inspect the assembly before choosing a part.
W&H names identify handpieces for a part review; they do not state that W&H manufactured or endorsed an offered replacement bearing.
Related W&H Handpiece Reading
Request a W&H Bearing Identification and Quote
Send the complete handpiece model and suffix, turbine or contra-angle head reference, old bearing marking, front or rear position if known, and quantity. Attach a clear photo of the model label and removed bearing through the contact form’s file field. Ask for the proposed part code, item specification and documented fit scope before ordering.
W&H Handpiece Bearing FAQ
How do I identify a bearing for W&H Synea Fusion?
Start with the complete Synea Fusion model and suffix, turbine or cartridge reference, old bearing marking and bearing position. Request a specification for the exact proposed part and a direct model-specific fit reference. A series name or nominal dimension alone cannot confirm fit.
Can a ceramic bearing replace a steel bearing in a W&H Trend handpiece?
Do not assume a material change is an upgrade for every Trend assembly. Compare the exact bearing’s dimensions, closure, cage, tolerance and lubrication with the applicable model documentation, then confirm the proposed fit and reprocessing conditions before ordering.
Is overheating in a W&H Alegra handpiece caused by the bearings?
A bearing is one possible cause, but overheating alone does not identify a failed part. Have the complete turbine or head assembly inspected for friction, debris, lubrication and other causes under the manufacturer’s service instructions. Choose a replacement only after the affected component is identified.
What warranty applies to a W&H replacement bearing?
Warranty and return terms depend on the exact quoted item and written order terms. Request the scope, duration and exclusions with the proposed part code before ordering; this page does not establish a universal warranty or refund promise.