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Step chain roller; 76x25, pin 20 with Bearing 6204

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Step chain roller; 76x25, pin 20 with Bearing 6204

Name: Step chain roller 76x25 pin 20 with Bearing 6204
Brand: China Band/Join venture band
Price: 1 USD

Brand Name : China Band/Join venture band

Model Number : 76x25b

Certification : Type Test

Place of Origin : China

MOQ : 100

Payment Terms : T/T

Supply Ability : 10000

Delivery Time : 15 days

Material of Tire : PU

Material of Hub : PA

Spec of bearing : 6204 2RS

Roller Size (DxW) : 76x25

Bearing Inner Diabetes。 : 20

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The step chain and step roller have two design structures: integrated roller and wheel hub roller. The integrated roller is composed of tires and bearings. Hub type roller is composed of tires, hubs and bearings. The materials of hubs can be divided into engineering plastic (PA) and metal. The standard is PA hub and option can be metal hub base on customer requirement. Normally, few metro customers are required to use metal hub step chain roller.

Step chain is one of the most important force bearing parts in escalator. As one of main components of the step chain, the step chain roller also bears great pressure. In general, hub type roller is used for step chain.

The step chain rollers are made of hydrolytic resistant polyurethane. And the material of hub is PA. The eligibility tests for step chain roller include anti-hydrolysis is 250hrs, oil hydrolysis is 250hrs, and life test run time is 5000hrs.

step-chain roller eligibility test
anti-hydrolysis	oil hydrolysis	life test run time
250hrs	250hrs	5000hrs

Step chain roller; 76x25, pin 20 with Bearing 6204

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