Brand	Type	Pitch	Inner chain plate	Outer chain plate	Shaft diameter	Roller size
		P	h2	h1	d2
OTIS	T135.4D	135.46mm	3*35mm	4*26mm	12.7mm	76.2*22mm
	T135.4		5*35mm	5*30mm
			5*35mm	5*30mm	15mm
	T135.4A		5*35mm	5*30mm

In order to ensure the normal operation of the escalator, the step chain requires regular maintenance and upkeep. Regular lubrication and cleaning are key to keeping your step chain running smoothly. If you find that the step chain is loose, worn or otherwise damaged, you should contact professional technicians immediately for repair or replacement.1. Does the product or packaging support customization? Support product or packaging OEM. 2. What advantages do you have in your peers? We have cooperated with OTIS, Thyssen, Schindler, Mitsubishi, Hitachi, Toshiba, Step, Monarch and other international famous brands all the year round. It can meet customers "one-stop, diversified" procurement needs. 3. What is the product warranty period? How to carry out after-sales service of the product? All our products are guaranteed for one year; we have an after-sales technical team of more than ten people, serving you 24 hours a day. 4. What payment methods are available? T/T, VISA, Mastercard, e-checking, L/C, paypal. 5. Which countries and regions are the products mainly exported to? Our products are mainly exported to the Russian-speaking market.