PATENT

Material Description

The comparison table below is for the reference. Any special application is required for testing.

The information is not guaranteed.

Precautions

This data is based on the maximum value of the wheel used under normal circumstances moving on a flat floor at maximum speed (4km/hr).

This formula is used when the wheel is moving on the uneven floor for security reasons.

Maximum
Load

weight of cart
+
loaded weight

3

Bearing Types

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Bearing / Rolling Resistance Diagram

Starting / Rolling Resistance

The circumstances of the floor, instrument weight, types of wheels, and structure of bearings could affect the starting and rolling resistance, and also affect operating.

The diagram below shows the relative information wheels starting resistances and the loading of different wheel-bearing types.

This information is based on tests of wheel dimensions and starting resistance of different wheel-bearing types. 

C: Cup shape and cone shape bearings

G: Plain bearings

R: Rolling bearings

K: Ball bearings

Plain bearings (3000N equivalent to 100% loading).

Starting resistance of the different type materials

b: Blue-grey wheel

c: Black wheel

e: Elastic wheel

s: Cast-iron wheel

w: Soft rubber wheel

Black wheel, 2050N equivalent to 100% loading.

Rolling resistance can be taken as approximately 0.5X starting resistance.

ROHS test report

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SGS test report

SGS-615-1.jpg
SGS-CZA008-1.jpg

Patent certificate

TAICHUNG

群弘興業有限公司
CYUN HONG Enterprise Co., Ltd.

Address : No. 10-12, Yonghe Rd., Daya Dist., Taichung City, Taiwan 428
Tel:886-4-2565-2102~3
Fax:886-4-2565-2735
E-mail:ch.casters@gmail.com
               ch.sales1@chcasters.com

TAOYUAN

Address:No. 12, Aly. 52, Ln. 743, Sec. 1,

Zhonghua Rd., Zhongli Dist., Taoyuan City 320, Taiwan

Tel:(03)462-5051~2

Fax:(03)462-5085

E-mail:ch.casters@msa.hinet.net

               ch.sales2@chcasters.com

KAOHSIUNG

Address : No.5, Aly.5, Ln.267, Sec.3, Jianguo Rd., Fengshan Dist., Kaohsiung City 830, Taiwan

E-mail:ch.casters@msa.hinet.net

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