KONE Door Hanger Roller 50×14×6201 ZV

KONE Door Hanger Roller 50×14×6201 ZV is used in compatible KONE elevator door hanger systems to support smooth and stable door-panel movement.

The roller is normally mounted on the door hanger plate and runs along the door track during opening and closing. Its identification is based on several details together: approximately 50 mm outer diameter, 14 mm roller width, 6201 bearing, and the ZV marking found on the original part.

Measure the Roller Before Removing the Hanger Plate

For this type of door component, a simple front photo is often not enough. The roller may appear identical to another KONE door wheel while using a different bearing, shaft, groove profile, or mounting method.

Before quotation, please confirm:

• roller outer diameter: approximately 50 mm

• roller width: approximately 14 mm

• bearing marking: 6201

• ZV marking, if visible

• bearing inner diameter

• shaft or fixing-bolt size

• flat, grooved, or shaped running surface

• roller material and hardness

• position on the door hanger plate

• front, side, and installed photos

• quantity required per door

The original roller should also be compared with any eccentric or lower adjustment roller installed on the same hanger assembly. These parts may have similar dimensions but different functions and mounting structures.

What Wear Usually Looks Like

Replacement may be required when the roller develops bearing noise, uneven rotation, a flattened running surface, cracks, excessive clearance, or visible wear caused by long-term contact with the door track.

A worn hanger roller can contribute to:

• shaking door panels

• irregular opening or closing

• rubbing noise

• uneven door gaps

• increased load on the door operator

• accelerated wear of the track and other rollers

Before installing the replacement, technicians should clean and inspect the door track, hanger plate, shaft, fixing hardware, eccentric roller, door shoe, and door-panel alignment. Replacing only the upper roller may not solve the problem if the track is damaged or the hanger is incorrectly adjusted.

For enquiries from Saudi Arabia, Jordan, Egypt, Iraq, UAE, Kuwait, Brazil, Chile, Spain, and Italy, photos taken beside a vernier caliper and a close-up of the 6201 bearing marking usually provide enough information for initial confirmation.

Frequently Asked Questions

Does 50×14×6201 identify the complete roller?

It provides the main size and bearing references, but the shaft, groove shape, material, ZV marking, and installation position should also be checked.

Can any 50 mm KONE door roller replace this part?

No. Rollers with the same outer diameter may have different widths, bearings, inner holes, running surfaces, or fixing structures.

What does 6201 refer to?

6201 normally refers to the bearing series fitted inside the roller. The visible bearing marking should be confirmed from the old part.

Should all rollers on the door hanger be replaced together?

It depends on their condition. If several rollers show similar wear or bearing noise, replacing them as a matched set may improve door alignment and running stability.