Quzhou Horbon Mining Parts Co., Ltd. is one of the leading manufacturers and suppliers of labyrinth cover for locating bearing in China. With abundant experience, we are committed to providing high quality customized service and OEM service to global clients. Welcome to buy advanced labyrinth cover for locating bearing made in China here from our factory. Contact us for quotation.
Introduction
On a jaw crusher eccentricity shaft, one bearing is the locating (fixed) bearing - it's the one that anchors the shaft axially, taking up thrust load so the shaft doesn't creep sideways under the swing of the pitman. Because that side carries the axial fixing point, its housing seal has one job to do: block dust and moisture from a chamber that doesn't need to accommodate shaft movement. A Labyrinth Cover for Locating Bearing is built for exactly that - a two-piece, non-contact seal set around the fixed-side bearing housing.
Horbon supplies this cover as a factory-direct, drawing-matched part. It shares the same material and machining process as our full eccentricity shaft spares range, sized specifically for the locating-side housing rather than a generic one-size seal.
Key Advantages
Purpose-built for the fixed side – dimensioned for the locating bearing housing's mounting position, not adapted from the floating-side part.
Two-piece set per housing – matches the standard quantity used on the locating side of the assembly, so you can order the exact count needed without over-buying.
Non-contact labyrinth sealing – groove-based sealing keeps dust and slurry out of the fixed bearing chamber without the friction wear of a rubbing lip seal.
Matched-set procurement – order it alongside the locating-side bearing housing, seal ring, and fasteners as one coordinated set, so every mating part arrives with a consistent fit.
Wear-grade material options – high manganese steel or chrome-moly alloy steel as standard, with custom alloy composition available through our lab and smelting furnace if your drawing calls for it.
In-process quality control – raw material spectral testing, HRC hardness testing, three-coordinate dimensional inspection, and flaw detection on every batch.
Low MOQ – 5 pieces minimum, so a small repair order doesn't require buying a full production run.
Applications
This part is specified wherever a jaw crusher's locating-side bearing housing needs resealing:
Scheduled bearing housing overhauls on the fixed side of the eccentricity shaft
Full shaft rebuilds where the locating and non-locating sides are serviced together
Fleet maintenance programs standardizing spares across multiple machines
Repair shops replacing a worn seal without disturbing the rest of the bearing assembly
Parts Assembly Reference
|
Item |
Detail |
|
Component |
Labyrinth cover, locating (fixed) bearing side |
|
Position in assembly |
Fixed-side bearing housing, axial thrust-locating end |
|
Quantity per housing |
2 pieces |
|
Material |
High manganese steel or chrome-moly alloy steel (per drawing) |
|
Process |
Precision casting + CNC machining + heat treatment quenching |
|
Seal type |
Non-contact, multi-groove labyrinth |
|
Paired components |
Locating-side bearing housing, seal ring, standard hex bolts and plain washers |
|
MOQ |
5 pieces |
|
Lead time |
15–30 days |
|
Trade terms |
FOB / CIF via Shanghai or Ningbo |
|
Exact dimensions |
Confirmed against your drawing or part number - contact us for a quote |
Questions Buyers Usually Ask
Q: 1. What's the difference between the locating side and the non-locating side of the bearing?
A: The locating bearing is fixed axially and takes up thrust load, keeping the shaft positioned. The non-locating bearing on the other end is designed to float slightly to accommodate thermal expansion. Each side uses a different quantity of sealing covers to match.
Q: 2. How many pieces come with a Labyrinth Cover for Locating Bearing order?
A: The locating side uses 2 pieces per housing - order in multiples of that if you're covering more than one shaft.
Q: 3. Can I order this without the bearing housing, or do I need the full set?
A: Both options are available. It's commonly ordered as a matched set with the locating-side bearing housing for a full rebuild, or on its own for a targeted seal replacement.
Q: 4. Is this part interchangeable with the non-locating side cover?
A: The material and general construction are the same, but the two are installed in different quantities and positions on the assembly - always specify which side you're ordering for.
Q: 5. How do I know if the seal on the fixed side needs replacing?
A: Check it during scheduled bearing housing maintenance. Worn groove profiles, cracking, or signs of contamination or grease loss inside the housing are the usual indicators.
Q: 6. What material is this available in?
A: Standard options are high manganese steel and chrome-moly alloy steel. If your application needs a specific alloy ratio, our lab and furnace can produce it to a custom composition.
Q: 7. Do you require a drawing to manufacture this part?
A: A drawing or OEM part number speeds up confirmation, but if you don't have one, send the worn original and our technical team can reverse-engineer and remodel it.
Q: 8. What's the minimum order and lead time?
A: MOQ is 5 pieces, with production lead time of 15–30 days depending on order size and any customization required.
Q: 9. What happens if there's a quality issue after installation?
A: We provide free replacement for confirmed quality issues, along with installation guidance documents and video/photo technical support from our team.
Q: 10. Can this be supplied with matching fasteners and seal rings?
A: Yes - we can quote it as a complete locating-side hardware set, so every mating part comes from the same production batch.
Request a Quote
Tell us how many locating-side housings you're servicing, and send a drawing, part number, or photo if you have one. We'll confirm fit and quote a factory-direct price for the matched set or the cover alone. Submit an inquiry through the form below.
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