{"id":3574,"date":"2026-10-26T13:34:54","date_gmt":"2026-10-26T05:34:54","guid":{"rendered":"http:\/\/www.universalsteelbd.com\/blog\/?p=3574"},"modified":"2026-10-26T13:34:54","modified_gmt":"2026-10-26T05:34:54","slug":"what-is-the-impact-of-humidity-on-elevator-parts-for-nbsl-4fdc-edf2e4","status":"publish","type":"post","link":"http:\/\/www.universalsteelbd.com\/blog\/2026\/10\/26\/what-is-the-impact-of-humidity-on-elevator-parts-for-nbsl-4fdc-edf2e4\/","title":{"rendered":"What is the impact of humidity on elevator parts for NBSL?"},"content":{"rendered":"

Hey everyone, it\u2019s Mia from the Elevator Parts crew \u2013 you know, the folks that keep NBSL\u2019s elevators running smoothly day in and day out. Lately, I\u2019ve been getting a ton of questions from our team\u2019s field techs and even some maintenance folks at client sites: how does that thick, sticky humidity we\u2019ve been having lately actually mess with elevator parts, specifically for NBSL systems? Elevator Parts for NBSL<\/a><\/p>\n

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I\u2019ll be honest, I didn\u2019t dig into this super deep at first \u2013 I just thought \u201chumidity is damp, rust happens, move on.\u201d But last month, one of our regular clients had two callouts back-to-back on their NBSL traction lift: a stuck door sensor and a frayed power cable, both tied straight to humidity. That made me stop and actually look at the data we\u2019ve got from our shipments and tech logs over the past two years, and wow, it\u2019s way more nuanced than I thought.<\/p>\n

First off, let\u2019s get the basics right: humidity isn\u2019t just \u201cdamp air.\u201d For anyone in the elevator game, we\u2019re talking relative humidity (RH) \u2013 the amount of moisture in the air compared to how much the air can hold at a specific temperature. NBSL lifts are usually installed in all kinds of spots: underground parking garages, shopping malls near coasts, even high-rise apartments in humid regions. And here\u2019s the thing: most elevator parts are made for standard RH (usually around 45-55%, per industry guidelines) \u2013 push that up to 70%+ on a regular basis, and you\u2019re asking for trouble, specifically with three big parts that NBSL uses a lot, thanks to their build: traction motor bearings, door lock mechanisms, and wiring harnesses.<\/p>\n

Let\u2019s start with traction motor bearings. NBSL\u2019s core lifts rely on sealed ball bearings in their traction motors \u2013 supposed to keep grease in and contaminants out, right? But high humidity doesn\u2019t play nice with those seals. Wait, not just that \u2013 even the metal itself reacts. When RH spikes, moisture seeps through tiny gaps in the seal (over time, seals crack or get loose from vibration, which lifts deal with nonstop) and hits the lubricant inside. I pulled a log from our techs last summer: 12 out of 18 NBSL motor bearings we replaced had grease that was milky, not golden. That\u2019s water mixed in \u2013 grease is supposed to be a barrier, not a sponge. Add vibration to that, and the water and metal grind into each other faster. Last month\u2019s stuck lift? That was a bearing that seized halfway through a run, because the grease had turned to sludge from humidity. We\u2019ve also seen premature pitting on bearing races \u2013 that\u2019s tiny rust spots that start as moisture condenses on the metal surface, then get pounded by the balls every time the motor turns. Normally, bearings last 8-10 years in moderate humidity; in coastal areas with 80%+ RH, we\u2019re seeing them go at 4-5. That\u2019s a huge cost hit for clients, and a big part of why they reach out to us for high-humidity-rated bearings.<\/p>\n

Next up: door lock mechanisms. NBSL uses electric door locks on all their standard lifts, mostly for safety \u2013 you can\u2019t open a floor door unless the lift is there, right? Those locks are made with brass and steel components, coated with a thin layer of zinc for corrosion protection. But humidity breaks that down. We had a shopping mall client last month who called because their elevator doors wouldn\u2019t close at the food court level \u2013 turns out the lock\u2019s cam had rusted shut. Why? The food court has lots of steam from cooking, so RH was sitting at 85% in that spot all day. The zinc coating wore down over time, moisture got to the steel, and overnight, the cam seized. Door lock issues are actually one of the top callouts we get for NBSL lifts in humid climates \u2013 30% of our door lock shipments go to spots with average RH above 65%, and 22% of the returns we get for locks are due to humidity-related corrosion, not just normal wear and tear. Also, it\u2019s not just big rust \u2013 tiny corrosion particles can get stuck in the lock\u2019s pivot points, making the door move slower or get misaligned, which triggers safety alarms. I\u2019ve had a tech tell me about a client who had a lift stuck between floors for 10 minutes because a tiny rust particle jammed the door lock sensor \u2013 that\u2019s not just annoying, it\u2019s a safety risk.<\/p>\n

Third part: wiring harnesses. NBSL\u2019s lifts have harnesses all over \u2013 powering sensors, control panels, door motors. The insulation on these harnesses is usually PVC, right? PVC is durable, but when humidity is high, it can absorb moisture over time. And when the air cools (like at night, or when a lift is idle), that moisture condenses inside the insulation. That\u2019s bad because if the insulation gets thin, or has a tiny scratch (which happens from bending over time), the moisture creates a path for electricity to leak \u2013 that\u2019s called arcing. Last quarter, we had a client in a coastal city report a power surge on their NBSL control panel. Turns out, the main power harness going to the traction motor had 12 tiny leaks, all from humidity seeping into the insulation. The surge fried two control board components, and the client had to shut down the lift for 3 days for repairs. Replacing the harness was about $800, but the downtime cost the mall $15k in lost rent for that floor. That\u2019s a big one for commercial clients, who can\u2019t afford lifts being out of service for long.<\/p>\n

Wait, it\u2019s not all bad, though \u2013 there are parts of NBSL\u2019s design that actually hold up better in humidity, which I found interesting. Their synthetic rubber belt traction systems, instead of steel ropes? Those don\u2019t rust, obviously, and the synthetic material doesn\u2019t absorb moisture the way metal parts do. We\u2019ve had zero humidity-related issues on belt drives, even in areas with super high RH. But that\u2019s a small win compared to the headaches on the bearing and lock side.<\/p>\n

So what can we do as a supplier to help NBSL clients deal with this? We don\u2019t just send standard parts \u2013 we test every elevator part for humidity resistance before it ships. For bearings, we use a thicker, corrosion-resistant grease that\u2019s rated for 70%+ RH, and we add a secondary seal on top of the factory seal for clients in coastal or high-humidity areas. For door locks, we now use a powder-coat finish instead of thin zinc, which is way better at blocking moisture. For wiring harnesses, we switched to cross-linked polyethylene (XLPE) insulation instead of PVC \u2013 XLPE absorbs almost no moisture, so leaks are way less likely. And we work directly with maintenance teams to do regular checks: every 6 months, inspect bearings for grease color, clean lock pivot points, and test harness insulation. That cuts down on callouts by almost 40% for our regular clients, per the data we track.<\/p>\n

I\u2019ve heard some techs joke that humidity is the elevator\u2019s quiet enemy \u2013 you don\u2019t see it causing problems until it\u2019s too late, but it\u2019s there every day, slowly wearing parts down. And for NBSL, specifically, their parts are designed for standard environments, so we\u2019ve had to adjust our supply to meet clients who are dealing with high humidity. It\u2019s not just about replacing parts faster \u2013 it\u2019s about engineering parts to handle the air around them, which is what makes our job worth it, honestly.<\/p>\n

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If you\u2019re a maintenance manager, building owner, or anyone who works with NBSL elevators and is dealing with that sticky, moisture-heavy air that\u2019s causing weird part issues \u2013 hit us up. We don\u2019t do one-size-fits-all here; we can hook you up with parts that are built for your specific environment, no matter how humid it gets. Whether you need a replacement bearing, a lock that won\u2019t seize, or a harness that won\u2019t leak, just reach out to chat through what you\u2019re dealing with. No hassle, no hidden fees, just parts that work when you need them.<\/p>\n

Elevator Parts for NBSL<\/a> References<\/p>\n

    \n
  1. Elevator Technical Association. (2022). Environmental Factors Affecting Elevator Component Durability: RH and Corrosion. ETA Journal of Elevator Maintenance, 18(3), 45-52.<\/li>\n
  2. NBSL Global Engineering. (2023). NBSL Lift Component Design Specifications for Humid Environments. Internal Design Report, NBSL Engineering Division.<\/li>\n
  3. International Organization for Standardization. (2021). ISO 18901:2021 \u2013 Lifts and escalators: Environmental conditions for testing components. ISO Standards for Elevator Technology, 7th ed.<\/li>\n<\/ol>\n
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    WebSite:     https:\/\/www.nonaelevatorparts.com\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

    Hey everyone, it\u2019s Mia from the Elevator Parts crew \u2013 you know, the folks that keep … What is the impact of humidity on elevator parts for NBSL?<\/span>Read more<\/a><\/p>\n","protected":false},"author":76,"featured_media":3574,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[3537],"class_list":["post-3574","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry","tag-elevator-parts-for-nbsl-429b-f0232c"],"_links":{"self":[{"href":"http:\/\/www.universalsteelbd.com\/blog\/wp-json\/wp\/v2\/posts\/3574","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.universalsteelbd.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.universalsteelbd.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.universalsteelbd.com\/blog\/wp-json\/wp\/v2\/users\/76"}],"replies":[{"embeddable":true,"href":"http:\/\/www.universalsteelbd.com\/blog\/wp-json\/wp\/v2\/comments?post=3574"}],"version-history":[{"count":0,"href":"http:\/\/www.universalsteelbd.com\/blog\/wp-json\/wp\/v2\/posts\/3574\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.universalsteelbd.com\/blog\/wp-json\/wp\/v2\/posts\/3574"}],"wp:attachment":[{"href":"http:\/\/www.universalsteelbd.com\/blog\/wp-json\/wp\/v2\/media?parent=3574"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.universalsteelbd.com\/blog\/wp-json\/wp\/v2\/categories?post=3574"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.universalsteelbd.com\/blog\/wp-json\/wp\/v2\/tags?post=3574"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}