Escalator Step Chain

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.

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.[su_table responsive="yes"]

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	Lmax	h2	t/T	Le	Qmin	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

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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	Lmax	Lc max	d3	d4	L1max	h2 max	t/T	Le	Qmin	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