comb plate Otis XAA453CD
Table of Contents
comb Otis XAA453CD
23，24 tooth comb Otis XAA453CD
Otis 24 tooth comb aluminum plate (left) GAA453CD5
tooth 206mm * 140mm hole pitch 102mm
Otis 24 tooth comb aluminum plate (mid) GAA453CD1
203mm * 139mm hole pitch 102mm
Otis 23 tooth comb aluminum plate (right) GAA453CD6
198mm * 140mm hole pitch 102mm
Ordering the comb
To order the comb, send the exact model or reference code printed on the original part to [email protected]. Please quote the full code including any suffix so that our team can confirm the correct variant, current stock and lead time before you commit.
About the comb
Elevator and escalator installations are built around a relatively small number of serviceable assemblies, but they fail at very different rates. The comb sits in the escalator / moving walk group, and it is replaced on a different service interval from the assemblies around it. In practice the failures we see on comb come down to worn step rollers and chain elongation, cracked skirt panels, glazed handrail drive wheels, and comb plates with broken teeth after a foreign-object stop.
Every comb we supply is inspected before dispatch. Each unit is checked for physical damage, correct marking and the specific wear or degradation patterns that matter for this class of component, then packed to survive international transit. Where a superseded revision is the only one available, we say so plainly and explain the substitution, so the installing engineer can make an informed decision rather than discovering the difference on site.
Buying guidance and compatibility notes
Before ordering the comb, confirm three things. First, the escalator model, the rise, and whether the unit is a 30 or 35 degree incline, because the step and chain differ between them. Second, a handrail profile that matches the guide rail must be confirmed before ordering, since nominally similar handrails differ in cross-section. Third, whether the installation is a traction lift or an escalator, since duty cycle and loading differ between the two.
On fitting, one point is worth repeating: step chains and handrail drive chains wear as a set — replacing one without the other usually means a repeat visit within the year. Almost every repeat failure we see on comb traces back to a related component that was left in place, or to an adjustment that was assumed rather than measured.
Safety edges, skirt brushes and comb plates are the parts passengers actually interact with. A broken comb tooth or a missing skirt brush is not merely cosmetic — it is the mechanism that prevents a foot or a shoe from being drawn into the step band.
The step band is the assembly that defines an escalator maintenance budget, which is why the step band is cleaned as a scheduled task rather than only when a fault appears.
Newel rollers and the handrail entry guide are small parts with a large influence on how a unit feels. A worn newel roller produces a rhythmic knock that passengers notice immediately, and a misaligned inlet chews the handrail from the inside where the damage cannot be seen.
From a spares point of view, skirt brushes and comb plates are held as stock items because their condition is inspected far more often than it is replaced; the handrail cross-section must be confirmed against the guide rail rather than assumed from the model.
Cleaning the step band is a maintenance task in its own right. Trapped grit between the step and the skirt accelerates wear on both surfaces, and a machine that is cleaned weekly will outlast an identical unit that is cleaned quarterly by a wide margin.
When a customer reports a visible gap opening between the step and the skirt, our first question is about step rollers that have flattened and no longer run concentrically rather than about the electronics.
Safety edges, skirt brushes and comb plates are the parts passengers actually interact with. A broken comb tooth or a missing skirt brush is not merely cosmetic — it is the mechanism that prevents a foot or a shoe from being drawn into the step band.
The step band is the assembly that defines an escalator maintenance budget, which is why the step band is cleaned as a scheduled task rather than only when a fault appears.
Newel rollers and the handrail entry guide are small parts with a large influence on how a unit feels. A worn newel roller produces a rhythmic knock that passengers notice immediately, and a misaligned inlet chews the handrail from the inside where the damage cannot be seen.
From a spares point of view, skirt brushes and comb plates are held as stock items because their condition is inspected far more often than it is replaced; the handrail cross-section must be confirmed against the guide rail rather than assumed from the model.
Cleaning the step band is a maintenance task in its own right. Trapped grit between the step and the skirt accelerates wear on both surfaces, and a machine that is cleaned weekly will outlast an identical unit that is cleaned quarterly by a wide margin.
When a customer reports a visible gap opening between the step and the skirt, our first question is about step rollers that have flattened and no longer run concentrically rather than about the electronics.
If you are unsure which variant of the comb you need, send a photograph of the nameplate and the existing component alongside a description of the fault. That is usually enough for our team to identify the correct replacement without a site visit, and it avoids the cost and delay of returning an incompatible part. We are also happy to advise on the other serviceable items in the same escalator / moving walk group, so a planned shutdown can cover several wear items at once.
Related parts and further reading
Because comb is only one item in the escalator / moving walk group, these related pages may help you plan the work:
Reference sources
The compatibility information on this page was cross-checked against the following authoritative references. Always confirm the exact reference against your own equipment nameplate.
