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American Standard without Rollers

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The smooth and stable flow of material through a process depends on the performance of the conveyor chain installed within the equipment. Bush class chains or steel knuckle chain are of the same construction as roller conveyor chain, but with the roller excluded. This series, with a reduced number of components, has proved to be particularly successful in high duty, high abrasion applications where lubrication is not possible. For many years KING steel bush chains have been proving performance in mill duty centrifugal discharge elevators within the more difficult applications encountered in the Cement Industry.

Cement, American Standard without Rollers
Cement, American Standard without Rollers
American Standard without Rollers
American Standard without Rollers

American Standard – Engineered Steel – without Rollers B29-12

Chain

Number

Pitch

Style

F1

L

S

Sidebars

Pins

Bushings

Sprocket Number

H

Heat Treat

D6

Heat Treat

C

D5

Heat Treat

inches

inches

inches

inches

JKB102B

4.00

4.37

2.13

0.38

1.50

TH

0.63

CARB

2.89

1.00

102B

JKB111

4.76

4.97

2.63

0.38

2.00

TH

0.75

SIH

3.39

1.44

111

JKB110

6.00

4.37

2.13

0.38

1.50

TH

0.63

CIH

2.89

1.25

110

JKB856

6.00

B

6.44

3.00

0.50

2.50

TH

1.00

CIH

4.00

1.75

CARB

856

JKB956

6.00

A

6.44

3.00

0.50

3.00

TH

1.00

CIH

4.00

1.75

CARB

856

JKB857

6.00

B

6.44

3.00

0.50

3.25

TH

1.00

CIH

4.00

1.75

CARB

856

JKB958

6.00

A

6.44

3.00

0.56

3.25

TH

1.13

CIH

4.13

2.00

CARB

958

JKB859

6.00

B

7.74

3.75

0.62

4.00

TH

1.25

CIH

5.00

2.38

CARB

859

JKB864

7.00

B

7.74

3.75

0.62

4.00

TH

1.25

CIH

5.00

2.38

CARB

864

JKB984

7.00

A

7.74

3.75

0.62

4.00

TH

1.38

CIH

5.00

2.50

CARB

984

JKB1084

7.00

C

8.60

4.43

0.75

4.50

TH

1.62

CIH

6.00

2.85

CARB

1084

TH: Thru-hardened CIH: Circumferential Induction Hardened after thru-hardening CARB: Carburized SIH: Selectively Induction Hardened

Key features of a World class product.

PINS manufactured from a high alloy steel to BS970 709M40 (AISI 4140) initially hardened and tempered to average 40Hrc in the core to give this tension component high tensile strength and toughness. Thereafter the pin is selectively induction hardened to create an armour plating to 58- 62Hrc at typically 10% of the diameter.

BUSHING are produced from a high alloy carburising steel to BS970 817M40 (AISI 5120)subject to deep case carburising on all wearing surfaces both internal and external. An extended exposure to the carbon rich atmosphere of the furnace ensures that the best combination of high hardness (58-62Hrc) and maximised case depth is achieved.

SIDEBARS are uniquely uprated from traditionally carbon steels to alloy steel to BS970 530M40 (AISI 5140) These are supplied in a hardened and tempered condition average 40Hrc to offer increased tensile strength as compared to alternatives.

Although of fundamental importance Quality is not exclusively about materials and heat treatment. Controlled high interference fits are employed in relation to pins and bushings and relative side plates. By pre-stressing the sidebar pitch holes the fatigue life of the chain is extended.

The chains are produced within the dictates of the Company’s management quality system ISO9000 to ensure a high and consistent quality standard.

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