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Escalator Step Chain

There are various types of step chains and roller chains used in escalators. Escalator step chains are more durable than regular chains, as the pin diameter is larger and can carry more weight than regular chains. Moreover, they are designed with tight coordination between step chains and chain links to reduce the noise of the ride. Moreover, there are lubrication-free and low-noise chains, which are ideal for escalators installed in quiet environments.

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Escalator Step Chain

The escalator step chain is the part of the mechanism that connects the upper landing to the drive. Thus you will experience the "stepping up" motion when you step up an escalator. Drive 12 powers the handrails and step chain 16 on each level of the escalator. Each escalator step chain is connected to an axle and rotates about its axis.

Step chains in escalators are made with varying pitches to minimize the effects of chordal action. The smallest pitch in an escalator step chain makes it work more smoothly. Installation of an escalator step chain varies by country and building. The bearing part of the chain plate is the focal point of the chain plate and is where the step shaft rests. The extension of the pins on the step shaft and step side will carry the weight of the steps.

Step chains on an escalator are a special type. These escalator components are used to move passengers up and down the escalator. However, the problem with these components is that they can be challenging to assemble and disassemble in the field. It is difficult to force the connecting axle and stub axle together. For a proper press fit, you will need to heat the connecting axle and stub axle and then press them together.

Escalator Step Chain Roller

Specifications of Escalator Step Chains

There are various types of step chains and roller chains used in escalators. Step chains are more durable than regular chains, as the pin diameter is larger and can carry more weight than regular chains. Moreover, they are designed with tight coordination between step chains and chain links to reduce the noise of the ride. Moreover, there are lubrication-free and low-noise chains, which are ideal for escalators installed in quiet environments.

Escalator Step Chain

Chain No. Pitch Roller diameter Width between inner plates Pin diameter Pin length Inner plate depth Plate thickness Distance between steps (three pitches) Ultimate tensile strength Average tensile strength Weight per step
P d1 b1 d2 L
max
h2 t/T Le Q
min
Q0 q
mm mm mm mm mm mm mm mm kN/lbf kN kg
ST131 131.33 80.00 27.0 24.00 54.5 50.0 5.0 394.00 180.0/40465 198.0 3.700
T131 131.33 80.00 27.0 14.63 54.5 50.0 5.0 394.00 180.0/40465 198.0 2.480
JJT131 131.33 80.00 27.0 14.63 56.5 35.0 5.0 394.00 123.0/27651 150.0 2.310
ST133 133.33 70.00 27.0 14.63 55.0 40.0 5.0 400.00 180.0/40465 198.0 2.450
JJT133 133.33 70.00 27.0 14.63 56.5 35.0 5.0 400.00 127.4/28640 140.1 2.380
ST133F1 133.33 80.00 27.0 24.00 54.5 50.0 5.0 400.00 180.0/40465 198.0 3.530
ST133F3 133.33 75.00 25.4 14.63 54.2 35.0 5.0 400.00 123.0/27651 135.3 2.160
ST133F4 133.33 76.00 27.0 14.63 55.0 40.0 5.0 400.00 180.0/40465 198.0 2.500
ST133F5 133.33 39.37 33.7 22.00 70.0 60.0 7.0/6.0 400.00 350.0/78683 385.0 4.776
ST133F6 133.33 39.37 33.7 16.00 65.0 50.0 5.0 400.00 170.0/38217 187.0 3.360
JJT131F1 131.33 76.20 23.6 12.70 52.0 35.0 5.0 394.00 90.0/20232 99.0 2.050
JJT131F2 131.33 76.20 23.6 12.70 52.0 35.0 5.0 394.00 90.0/20232 99.0 2.050
JJT131F3 131.33 76.20 23.6 15.00 52.0 35.0 5.0 394.00 123.0/27651 135.3 2.200
JJT131F4 131.33 76.20 23.6 15.00 52.0 35.0 5.0 394.00 123.0/27651 135.3 2.200
ST135F2 135.47 76.20 23.6 12.7/15.0 54.2 35.0 5.0 406.40 90/20232 99.0 2.050

Step Chain Escalator

Chain No. Pitch Roller diameter Width between inner plates Pin diameter Pin length Bush diameter Bush length Plate dimension Distance between steps Ultimate tensile strength Average tensile strength Weight per step
P d1 max b1 d2 L
max
Lc max d3 d4 L1
max
h2 max t/T Le Q
min
Q0 q
mm mm mm mm mm mm mm mm mm mm mm mm kN/lbf kN kg
C-13T 68.40 32.0 20.6 14.29 45.0 50.85 23.5 28.5 40.85 38.5 4.8 410.4 127.4/28640 140.0 2.30
P67-FD 67.73 28.5 27.0 14.29 52.3 57.00 23.0 27.0 36.85 38.0 4.8 406.4 130.0/299225 140.0 2.19
C-16V 68.40 28.0 29.6 14.29 53.9 59.60 22.0 26.0 29.35 39.6 4.8 410.4 161.7/36351 178.0 2.38
C-12V 68.40 28.0 20.7 12.70 41.9 47.40 21.0 26.0 30.50 39.6 4.0 410.4 140.0/31473 154.0 1.82
C-8V 68.40 28.0 20.7 12.70 41.9 47.40 21.0 26.0 30.50 39.6 4.0 410.4 100.0/224809 110.0 1.82
ST67HF2 67.73 28.5 27.0 14.63 52.7 57.00 23.0 27.0 36.85 40.0 4.8/5.5 406.4 186.2/41859 204.0 2.31
ST67HF1 67.73 28.5 27.0 14.63 52.7 57.00 23.0 27.0 36.85 40.0 4.8/5.5 406.4 160.0/35969 176.0 2.31

Escalator Step Chain Roller

Chain No. Pitch Roller diameter Width between inner plates Pin diameter (Hollow) Pin Diameter Pin length Plate dimension Ultimate tensile strength Average tensile strength Weight per step
P d1
max
b1
min
d2
max
d3
max
d4 max L
max
Lc max h2 t/T
max
Q
min
Q0 q
mm mm mm mm mm mm mm mm mm mm kN/lbf kN kg
PT135HP 135.46 45.0 23.0 25.0 20.0 28.0 47.1 55.1 70 6.0/5.0 250/56202 275.0 4.5

How an Escalator Step Chain Works?

An escalator step chain is a type of conveyor made up of small pitch chains that are installed on attachments. These chains carry the material directly on the chain or onto jigs installed on the attachments. Each attachment has a specific type of material to convey. There are many different types of attachments, and modern standard ones are available for fast delivery and economy. The steps on an escalator should support at least 450 kg/m2 of load without distortion.

Escalator Step Chain Replacement

Step Chain EscalatorIf you have to change the step chain on an escalator, here are the steps that you need to follow: Remove the inner and outer cover plates. Remove the apron plates as well. Next, run part of the chain to the position where you removed the covers and apron plates. Tighten the lower end of the loose step chain. Alternatively, you can use special components to repair the chain without removing it.

After you have removed the large chain, it is time to install the new step chain. It should be placed outside of the large frame. Once the chain is installed, you must install the guide chain around it. You must ensure that you use a constant track route when replacing the large chain. You cannot do this work on an individual basis. Ideally, you should have a team of two people to perform this job. If you are replacing a single chain, this work will take around one day.

Escalator Step Chains and Sprockets

There are several types of chains and sprockets to choose from. Some are narrow, others are wide, and each has a different pitch diameter and sprocket bore. For example, chains with large pitch diameters require sprockets with larger teeth than those with smaller roller-pin centers. Ultimately, you should choose sprockets that fit the chain and bike properly.

Our escalator step chains and sprockets are highly reliable and durable products. A steel finish is common. They can be sized for specific applications. There are also several different sizes of sprockets, which will depend on the amount of torque they must exert. If you need to choose a sprocket with an ANSI number, you should select the one that meets the exact requirements of your machine.

Metal sprockets have different designs and can be used for both types of applications. Steel split sprockets are easy to install and remove. They can also be made of aluminum. Stainless steel sprockets are available for extremely corrosive environments. As one of the professional transmission parts manufacturers and suppliers, HZPT has a wide range of drive chains and sprockets for sale. Contact us now if you are interested!

Chains and Sprockets

 

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