FONKIN 35220 Double-Row Tapered Roller Bearing: Buyer’s Sourcing Checklist

FONKIN 35220: start with the application, not only the part number

When a heavy-duty bearing is being replaced, a familiar number is useful but it is not enough on its own. FONKIN 35220 is a double-row tapered roller bearing used where radial load and axial load act together. Before ordering, a buyer should confirm the complete marking, mounting arrangement and operating conditions with the maintenance team.

What should be checked before a replacement order?

• Complete designation: send a clear photo of the old bearing and any suffix shown on the ring or packaging.

• Boundary dimensions: confirm bore, outside diameter and total width from the actual part or equipment drawing.

• Load direction: explain whether thrust is present in one direction or both directions, and whether the machine sees shock load.

• Fit and adjustment: confirm shaft and housing condition, preload or end-play requirement, and whether a matched assembly is required.

• Working environment: include speed, lubrication method, temperature, dust, water and vibration conditions.

Why the bearing arrangement matters

A double-row tapered roller design is chosen when the equipment needs a compact bearing arrangement with capacity for combined loads. It is often seen in demanding transmission, wheel, conveyor and process-equipment positions. The correct choice depends on the actual mounting arrangement, not simply whether another bearing looks similar in a photo.

Installation points that protect service life

Keep the bearing in its original packaging until the fitting area is clean. Apply mounting force to the ring being fitted, not through the rollers. Check seating faces, lubrication cleanliness and the adjustment procedure specified by the equipment maker. After start-up, record temperature, noise and vibration so abnormal change can be identified early.

What to include in an RFQ

For a faster FONKIN quotation, send: 35220 marking, quantity, application, photos of the old part, required delivery date and destination country. If the request is a replacement for another brand, include the full original designation and the machine position. FONKIN can check the information before offering a practical supply option.

Buyer FAQ

Can a double-row tapered roller bearing be selected from dimensions alone?

Dimensions are essential, but the full marking, internal arrangement, load direction and adjustment requirement should also be confirmed before purchase.

What is the quickest way to obtain a quote?

Email the complete marking and photos, together with quantity and destination, to fonkin-industries@188.com, or use the website inquiry form.