HIGmill Support and Sealing Spares
Bearings, Sleeves and Seals
Bearing, Sleeve and Seal System
Check bearings, shaft sleeves, bearing housings and shaft seals separately within the HIGmill vertical main shaft support system. Match these parts to the installed model, journal dimensions, fits, tolerances, lubrication and seal design; generic names alone are insufficient.
Equipment Metso / Swiss Tower Mills HIGmill
Installation Position Upper main shaft support, bearing housings and seal journals
Key variables Shaft diameter, fits, loads, speed, lubrication and sealed medium
Identification requirements Model, serial number, support assembly drawing, individual part drawings and used-part dimensions
Assembly scopeIndividual part supply Bearing, shaft sleeve, bearing housing or seal Repair kit Match support and sealing parts to the assembly arrangement Key accuracy requirements Fits, tolerances, coaxiality, roughness and face runout Site conditions Loads, speed, lubrication, temperature and process medium ingress
Identify the four part types separately or specify a combined support and sealing kit
Bearings carry radial and axial loads; sleeves provide fit, protection or positioning; housings establish mounting datums and lubrication passages; shaft seals separate lubricants from slurry, moisture and dust. State whether the RFQ covers an individual replacement or a repair kit with mating parts.
The image illustrates the HIGmill main shaft and upper support arrangement. Confirm individual bearing, sleeve, housing and seal geometry and interfaces against the equipment drawings, model details or dimensional surveys.
Spare part categories
Four areas to check in the support and sealing system
Parts with the same name may have different dimensions and construction across HIGmill models and equipment versions.
Main shaft bearings
Check bearing type, inside and outside diameters, width, clearance, accuracy, load direction, lubrication method and original bearing designation.
Shaft Sleeves and Bushings
Check the mounting journal, interference or clearance fit, wall thickness, length, locating features, surface hardness and wear allowance.
Bearing Housings and Covers
Check mounting datums, bore diameter, coaxiality, lubrication passages, fastening holes, split construction and frame connections.
Shaft Seal Assemblies
Check seal type, shaft diameter, grooves, operating pressure, temperature, speed, process medium, elastomers and mating metal parts.
Materials and Processes
Match materials to part function and failure mode
Use material pages for initial selection. Confirm the final grade, hardness, heat treatment and seal material against the drawings, operating medium and temperature.
Bearing Copper Alloys and Sliding Materials For sleeves, bushings or thrust parts with sliding contact. Check loads, speed, lubrication, mating shaft material and permissible temperature rise. Alloy Steels for Drive Parts For highly loaded sleeves, housing mating parts and load-bearing metal parts. Confirm strength, toughness, hardenability and dimensional stability. Sealing Elastomers and Engineering Plastics For shaft seals, backup rings and composite seals. Select for slurry, water or oil exposure, temperature, pressure, surface speed and chemical compatibility.
Models and drawing
Applicable HIGmill configurations
Confirm bearing designations, sleeve dimensions and seal specifications for each model separately.
| HIGmill Model | Identification priorities |
|---|---|
| HIG3500/23000 | Check the main shaft, supports, lubrication and seal assembly against the 3,500 kW installed configuration |
| HIG500/4000 | Check against the 500 kW installed configuration and site modification version |
| HIG25 / HIG5 | Identify pilot and test equipment separately; industrial unit specifications do not apply automatically |
| Other industrial HIGmill models | Provide power, chamber volume, serial number, main shaft and bearing housing interface data |
Match third-party drawing to the specific equipment model, serial number range, part category, drawing revision and key dimensions. Similar names alone do not establish equivalence.
RFQ information
Support and sealing spare part identification information
Complete information helps prevent incorrect bearing clearance, sleeve fit or seal material selection.
Equipment identification
OEM, full model, serial number, nameplate and modification history.
Part scope
Individual bearing, shaft sleeve, bearing housing or seal, or a repair kit.
Drawings and designations
OEM references, bearing designations, seal designations, samples and drawing revisions.
Key dimensions
Shaft diameter, bore diameter, width, fits, tolerances, grooves and mounting datums.
Operating conditions and media
Loads, speed, temperature, lubricants, slurry, water and dust conditions.
Failure records
Temperature rise, vibration, leaks, wear, heat damage, corrosion and service-life history.
Related Equipment and Parts
Coordinate equipment, main shaft and materials
Access this product page through the OEM equipment model, general spare parts or material selection routes.
Metso HIGmill Equipment Return to machine models, wear parts and spares. Main Shaft and Rotor Support Assembly Check the shaft sections corresponding to the bearings and seals. Bearing Copper Alloy Materials Review selection criteria for sliding bearing materials. Seals and Engineering Plastics Select according to process medium, temperature and surface speed.