Single Row Four-Point Contact Ball
Simple, robust, and cost-effective standard structure for combined axial, radial, and moment loads.
STANDARD CATALOGUE
Standard Slewing Bearing Models
Browse MERYDOM standard slewing bearing series by structure type, gear type, dimensions, and model designation. Use envelope OD and minimum bore filters to screen installation clearance before opening a model detail page.
PRODUCT CATALOGUE
Download the MERYDOM standard slewing bearing catalogue
Review structure drawings, standard series, model designations, and catalogue dimensions in one PDF.
Download catalogue Direct PDF download
STEP 1 - STRUCTURE TYPE
Start with the bearing structure
The first decision is not the model number, but the structure: single-row ball for common cost-effective rotation, double-row ball for higher load support, crossed roller for rigidity and accuracy, and three-row roller for heavy-duty load capacity. Choose a family to narrow the series list.
Double Row Four-Point Contact Ball
Higher load capacity than single row ball structures while retaining ball-bearing motion characteristics.
Single Row Crossed Cylindrical Roller
Used when rigidity, running accuracy, and controlled clearance are key operating requirements.
Three Row Roller
Heavy-duty structure for very high axial loads, radial loads, and overturning moments in large equipment.
STEP 2 - SERIES FINDER
Find the right standard series
Use the family selector and gear form to narrow the catalogue. Then open the series page to review model parameters and send an RFQ.
SeriesStructureGear formApplication noteData list
011/012Cost-effective
011/012 External GearSingle row four-point contact ball
External gear
Standard single row four-point contact ball slewing bearings with external gear teeth for compact rotating structures, construction machinery, industrial platforms, and general equipment applications.
013/014Compact drive layout
013/014 Internal GearSingle row four-point contact ball
Internal gear
Single row four-point contact ball slewing bearings with internal gear teeth for designs requiring a protected drive position or compact external envelope.
010No gear
010 UngearedSingle row four-point contact ball
No gear
Ungeared single row four-point contact ball slewing bearings for applications where rotation is driven by external mechanisms or where gear teeth are not required.
23Flanged rings
23 Flanged SeriesFlanged four-point contact ball
External / internal / no gear
Flanged slewing bearing series for compact equipment, lower weight designs, and applications requiring a simplified mounting interface.
06Light series
06 Light SeriesLight series four-point contact ball
External / internal / no gear
Light series slewing bearings for compact structures where reduced section height, lower weight, and economical manufacturing are important.
021/022Double row ball
021/022 Double Row External GearDouble row four-point contact ball
External gear
Double row four-point contact ball slewing bearings with external gear teeth for applications requiring higher load capacity than single row ball designs.
023/024Double row ball
023/024 Double Row Internal GearDouble row four-point contact ball
Internal gear
Double row four-point contact ball slewing bearings with internal gear teeth for heavy-duty equipment requiring compact drive integration.
020Double row ball
020 Double Row UngearedDouble row four-point contact ball
No gear
Ungeared double row ball slewing bearings for applications where higher load capacity is required but gear teeth are not part of the bearing.
111/112High rigidity
111/112 Crossed Roller External GearSingle row crossed cylindrical roller
External gear
Crossed cylindrical roller slewing bearings with external gear teeth for applications requiring higher rigidity, better running accuracy, or controlled clearance.
113/114High rigidity
113/114 Crossed Roller Internal GearSingle row crossed cylindrical roller
Internal gear
Crossed cylindrical roller slewing bearings with internal gear teeth for compact high-rigidity rotating assemblies.
110High rigidity
110 Crossed Roller UngearedSingle row crossed cylindrical roller
No gear
Ungeared crossed roller slewing bearings for high-rigidity support where the drive mechanism is separate from the bearing.
131/132Very heavy load
131/132 Three Row External GearThree row roller
External gear
Three row roller slewing bearings with external gear teeth for very heavy axial loads, radial loads, and overturning moments.
133/134Very heavy load
133/134 Three Row Internal GearThree row roller
Internal gear
Three row roller slewing bearings with internal gear teeth for large equipment requiring high load capacity and compact drive positioning.
130Very heavy load
130 Three Row UngearedThree row roller
No gear
Ungeared three row roller slewing bearings for high-capacity support where gear drive is handled separately from the bearing.
DESIGNATION SYSTEM
Hover to read the complete model code rule
Move the mouse over each part of 013.45.1250. Each tooltip shows the full coding rule, all common options, and the meaning of the current number.
0Product typeRule: 1st digit defines the product category.0 = ball slewing bearing1 = roller slewing bearing2 = ball and roller unionCurrent meaning0 = ball slewing bearing family.1Raceway typeRule: 2nd digit defines the raceway / row structure.1 = single row2 = double row3 = three rowCurrent meaning1 = single-row structure.3Transmission typeRule: 3rd digit defines gear arrangement and module group.0 = no gear1 = external gear, small module2 = external gear, big module3 = internal gear, small module4 = internal gear, big moduleCurrent meaning3 = internal gear, small module group..45Rolling element diameterRule: this number identifies the rolling element diameter / size group used by the catalogue.Current meaning45 = 45 mm rolling element diameter / selected section-size group..1250Raceway center diameterRule: last main number identifies the raceway center diameter reference.Current meaning1250 = approximately 1250 mm raceway center diameter reference.
1st digit · Product type0 Ball slewing bearing · 1 Roller slewing bearing · 2 Ball and roller union
2nd digit · Raceway type1 Single row · 2 Double row · 3 Three row
3rd digit · Transmission type0 No gear · 1 External gear small module · 2 External gear big module · 3 Internal gear small module · 4 Internal gear big module
Middle / diameter fieldsRolling element diameter + raceway center diameter are used for size identification, for example 45.1250.
Optional suffix · Assembly match0 No front edge · 1 Front edge · 2 Special type
Optional suffix · Mounting holes0 Both through hole · 1 Both thread hole · 2 Inner ring thread / outer ring through · 3 Inner ring through / outer ring thread
Optional suffix · Seal type0 No seal · 1 Single ring seal · 2 Double ring seal
Optional suffix · MaterialMaterial code is confirmed according to drawing, quotation, and selected steel grade such as 50Mn or 42CrMo.
The catalogue code helps engineers understand the bearing structure quickly. Final quotation still requires drawing, load case, material, heat treatment, mounting hole, clearance, seal, and documentation confirmation.
SELECTION SUPPORT
Need help selecting a bearing size?
Send your load case, applied axial load, radial load, overturning moment, installation dimensions, and application environment. MERYDOM can review catalogue models or propose a custom-engineered solution.
FAQ
Standard model quotation notes
Are all catalogue models in stock?
Standard catalogue models provide a dimensional reference. Availability depends on size, material, quantity, and current production schedule.
Can mounting holes be changed?
Yes. Mounting holes can often be changed to through holes or tapped holes according to your drawing and installation structure.
Can gear teeth be hardened?
Gear teeth can be hardened upon request. Final gear data and heat treatment requirements should be confirmed before production.
What should I send for RFQ?
Send model number, drawing, required material, quantity, application, load case, destination, and document requirements.
SEND YOUR DRAWING
Need a slewing bearing quotation?
Upload your drawing, part number, sample data, or application requirement. MERYDOM will review manufacturability and provide a quotation.