The defining characteristic of split bearings (exemplified by brands such as SKF Cooper) is that the inner ring, outer ring, cage, and housing can all be split into two halves radially. This design allows for installation and maintenance without the need to dismantle connected drive components (such as gears, couplings, or pulleys), thereby significantly reducing equipment downtime.
Below is a detailed overview of the industries, equipment, and common series/models associated with split bearings:

I. Application Industries

Split bearings are widely used in heavy industry, continuous production environments, and applications where space is limited or disassembly is extremely difficult:

Iron and steel metallurgy: High-temperature, continuous-operation, and heavy-load environments where downtime results in significant economic losses.
Mining, quarrying, and bulk material handling: Dusty, harsh operating environments involving extensive long-distance conveying equipment.
Ports and marine: Marine propulsion shafting and deck machinery; limited space and short maintenance windows.
Cement and building materials: Dusty, heavy-load environments; replacing bearings on kiln-end equipment and conveyor systems is particularly challenging.
Power and energy: Thermal and wind power plants, specifically for wind turbines, coal mills, and generator sets.
Pulp, paper, and sugar industries: Production lines featuring long shafts and multiple support points, requiring high standards of cleanliness and operational continuity.

II. Core Application Equipment

In the aforementioned industries, split bearings are typically installed in “trapped locations” (i.e., positions sandwiched between two large components where conventional bearings cannot be slid off or removed):
Belt Conveyors: Bearings for head pulleys, tail pulleys, bend pulleys, and drive drums (located between the motor/gearbox and the drum).
Industrial Fans and Blowers: Induced draft fans, forced draft fans, and high-temperature gas fans (bearings are often trapped between the fan housing and the impeller or motor).

• Bucket Elevators: Support for head and tail sprockets/drive shafts.
• Steel Plant Continuous Casting and Rolling Equipment: Cooling bed roller tables, continuous casting machine rollers, converter trunnions, continuous rolling mill main drives,andstraighteners.
• Stacker-reclaimers: Pinion support for the large slewing bearing gear and the slewing mechanism.
• Stacker-reclaimer: Support for the large slewing bearing gear and the pinion of the slewing mechanism.
• Marine propulsion systems: Stern shafts, intermediate bearings, and generator set shafting.
• Rotary kilns and large mixers: Long shaft systems and drive assemblies with multiple support points.

III. Typical Structures and Model Designation Systems

Taking industry benchmarks (such as SKF Cooper) as examples, split bearings are primarily categorized into split cylindrical roller bearings, split spherical roller bearings, and split tapered roller bearings. Model designations typically consist of a “series code” plus a “structure/dimension code.”
1. Split cylindrical roller bearings (Mainstream products; suitable for pure radial loads and high speeds)Stacker-reclaimer: Support for the large slewing bearing gear and the pinion of the slewing mechanism.Various series are typically offered to meet different space and load requirements:100 Series (Light-duty series): Compact design; suitable for high-speed applications and space-constrained environments.01 Series (Medium/Standard series): The most widely used standard series in industry; balances dimensions with load-carrying capacity.02 Series (Heavy-duty series): Designed for heavier loads. 03E Series (Extra heavy-duty series): Designed for extremely harsh conditions and ultra-heavy loads (the E-series typically features an optimized brass cage and higher load capacity).Typical model examples: 01B 100 GR or 01B CPH (designating specific sizes of split bearing assemblies, housings, and clamping collar combinations; the numbers usually represent the bore size, such as codes for inch or metric dimensions).

2.Split spherical roller bearings (Suitable for extremely high radial loads and accommodating slight shaft misalignment or deflection)
Used in heavy machinery prone to shaft deflection or where installation alignment is difficult (e.g., mining vibrating screens, large industrial fans, and steel smelting equipment).
Features: Capable of automatically compensating for shaft deflection.

3. Split tapered roller bearings (suitable for bidirectional combined loads)
Commonly used in equipment requiring fixed axial positioning (locating bearings) and capable of withstanding significant axial thrust, such as certain marine thrusters, heavy-duty industrial fans, and specialized gearboxes.
Note: During actual selection, split bearings are typically ordered as “complete units,” comprising: the bearing assembly (inner ring, outer ring, rollers, and split cage);
the housing/casing (pedestal or cartridge types, such as pillow blocks or flanged housings);and seals (specialized double-lip or labyrinth seals tailored for dusty, high-temperature, or humid environments).

Mining, Building Materials, and Bulk Material Handling Industries
Equipment in these sectors often operates in harsh conditions with high dust levels, long drive-shaft spans, and constrained access at both ends.
Typical equipment applications:Belt conveyor drive pulleys and bend pulleysBucket elevator head and tail shaftsAuxiliary drives and feeders for large mineral processing ball mills
Examples of typical split bearing models and units:
01 Series (Medium/Standard Duty): Widely used for small-to-medium conveyor pulleys.
Example: 01B 100M GR (100mm shaft diameter, fixed type, housed unit)
Example: 01EB 307 EX (3-7/16 inch shaft diameter, floating/expansion type)
02 Series (Heavy-Duty): Used for applications subject to high impact loads, such as mining vibrating screens or heavy-duty conveyors.
Example: 02C 100M (02 heavy-duty series, 100mm bearing assembly)

Iron & Steel Metallurgy and Metal Rolling Industries
The metallurgical industry is characterized by high temperatures, continuous operation, and heavy loads; equipment such as roller tables and continuous casting machines, in particular, cannot tolerate prolonged downtime. Typical application equipment:
Roller tables for continuous casting machine withdrawal/straightening units and cooling bedsMain drive and auxiliary roller tables for hot/cold rolling millsDrive shafts for walking-beam reheating furnaces; converter trunnionsTypical split bearing models and unit examples:03 Series / 03E Series (Extra-heavy-duty series): Designed specifically for heavy-duty steel rolling and metallurgical applications; offers extremely high load-carrying capacity.Example: 03B 400 GR (400mm extra-heavy-duty fixed unit, featuring a robust housing and sealing system)Designation details: Compatible with special materials (such as ductile iron housings [03CN] or all-steel housings [03CS]) to withstand the high temperatures and severe impacts found in metallurgical environments.

Electric power, energy and large industrial fan industry
Bearings for fans and coal mills are often sandwiched between the motor and the fan housing, making the removal of conventional bearings extremely cumbersome.
Typical application equipment:Induced draft fans, primary air fans, and forced draft fans in thermal power plants or chemical plantsCoal mill drive mechanismsWind power generation systems (specific drive components or auxiliary mechanisms)
Typical split bearing models and unit examples:
100 Series (Light-duty series): Compact design; ideal for high-speed applications with limited space inside the fan housing.
Example: 100B 85M EX (85mm light-duty split expansion bearing, designed to accommodate axial movement caused by thermal expansion and contraction)
Split spherical roller bearing series (e.g., for high-temperature fans where shaft deflection occurs):
Example: Split variants of the 222 series or large-scale split spherical roller bearing units, used to compensate for misalignment in fan main shafts caused by high-speed operation and thermal deformation.

IV. Marine Propulsion and Offshore Engineering Industries

Space within ship shafting systems is extremely restricted; if an intermediate shaft bearing fails, replacing it with a solid (non-split) bearing outside of a drydock is virtually impossible. Typical applications:
Marine stern shafts and intermediate shaft bearingsDeck crane slewing mechanisms and anchor winch drivesExamples of typical split bearing models and units:Split units with special flange or hanger housings:
Example: 01C 311 F (01-series split bearing with a circular flange housing, designed for mounting on ship bulkheads or in confined compartments)Marine models typically feature specialized sealing systems, such as labyrinth seals or composite Teflon seals, designed to be waterproof and resistant to seawater corrosion.