SX011824 crossed roller bearing is a compact precision bearing with a 120 mm bore, 150 mm outside diameter and 16 mm width. Within the LYDL product range, it corresponds to LRC 12016 and weighs approximately 0.8 kg.
The bearing uses an integrated inner ring and a circumferentially split outer ring. Cylindrical rollers arranged alternately at 90 degrees allow it to support radial load, bidirectional axial load and overturning moment within one compact bearing position.
Its 120 mm central bore provides space for a hollow shaft, torque-motor rotor, encoder, cables or service lines. SX011824 is particularly suitable for compact CNC rotary tables, direct-drive modules, precision inspection turntables, medical equipment and semiconductor automation.
LYDL can supply P5, P4, P2 and customized configurations, with controlled clearance or preload, selected grease, serial marking, inspection records and export packaging.
SX011824 Crossed Roller Bearing Overview
The SX011824 crossed roller bearing is a compact precision bearing with a 120 mm bore, 150 mm outside diameter and 16 mm width. LYDL supplies this size as LRC 12016, with an approximate mass of 0.8 kg.
Its 120 mm central bore provides space for a hollow shaft, torque-motor rotor, encoder, cables or service lines. The 150 mm outside diameter and 16 mm width allow designers to build a rigid rotary module without using a wide multi-bearing arrangement.
SX011824 has an integrated inner ring and a circumferentially split outer ring. Alternately arranged cylindrical rollers support radial load, axial load from both directions and overturning moment within one bearing position.
For the complete model range, visit the LYDL SX Cross Roller Bearing Series page.
These values are the LYDL reference data for LRC 12016/SX011824. Final supply conditions must follow the approved quotation, drawing and inspection agreement.
Why Choose SX011824?
120 mm Functional Through-Bore
The large central opening can accommodate a hollow drive shaft, torque motor, encoder or utility passage. The usable opening in the completed assembly also depends on shaft shoulders, clamping components and cable protection.
Higher Load Margin in a Compact Section
SX011824 offers a significant increase in reference load ratings over SX011818 and SX011820. Its 16 mm width remains compact for a bearing with a 120 mm bore.
Integrated Inner Ring
The one-piece inner ring provides a continuous rotating interface. This is useful when the inner ring, shaft or motor rotor must rotate with stable accuracy.
Combined-Load Capability
Crossed cylindrical rollers generate line contact with the raceways. The arrangement supports radial force, bidirectional axial force and tilting moment without installing separate radial and thrust bearings.
For more information about load directions and bearing structures, see the LYDL Cross Roller Bearing Guide.
Main Applications of SX011824
Compact CNC Rotary and Indexing Tables
SX011824 can support axial machining force, radial cutting reaction and moment load in a compact auxiliary table. Preload and mounting-face accuracy should be selected according to the required indexing repeatability.
Torque-Motor and Hollow-Axis Modules
The 120 mm bore provides space for a direct-drive rotor, encoder and internal cable routing. Starting torque, continuous running torque and heat generation must be considered when specifying preload.
Precision Assembly and Inspection Turntables
Assembly fixtures, welding positioners and vision-inspection tables often carry components above the bearing plane. This creates an overturning moment that should be calculated from the load and its offset distance.
Medical, Semiconductor and Laboratory Equipment
Imaging mechanisms, wafer-handling equipment and analytical platforms can use the large central passage for instruments or services. Lubricant, cleanliness and corrosion protection must match the actual environment.
Load Ratings and Application Review
The LYDL reference ratings are Ca 41 kN, C0a 153 kN, Cr 26 kN and C0r 75 kN. Each value represents a different load direction and defined calculation condition.
The four ratings must not be added together. Mixed radial, axial and moment loads require an equivalent-load calculation and a check of static safety.
Moment load becomes important when the workpiece, pulley, gear or fixture is positioned away from the bearing centre. Provide both the applied force and the offset distance during selection.
Slow indexing, oscillation and stationary loading can be governed by permanent deformation rather than fatigue life. Dynamic life should still be checked when the bearing completes repeated rotations.
Use one consistent manufacturer dataset throughout the calculation. Load ratings from a different brand, suffix or catalogue generation may reflect different internal geometry or calculation assumptions.
Choose SX011824 when the design requires a 120 mm bore, more load margin or greater support for a medium-sized fixture. SX011818 and SX011820 are better choices when space and moving mass have higher priority.
The larger bearing does not automatically produce a more accurate assembly. Housing stiffness, clamping uniformity, preload, machining accuracy and drive alignment remain essential.
Clearance, Preload and Suffixes
Suffix meanings can vary by manufacturer and catalogue generation. Confirm the complete designation before production or replacement.
No suffix: usually identifies a standard-clearance configuration, subject to confirmation.
RL0: commonly refers to reduced internal clearance.
VSP: commonly identifies a preloaded configuration.
RR: a Schaeffler/INA-specific reference associated with its corrosion-resistant treatment.
A: may indicate a revised manufacturer design or catalogue generation.
P5, P4 or P2: LYDL accuracy requirements that should be stated separately.
Preload can improve angular rigidity and repeatability. Too much preload can increase torque, temperature and motor load.
For a torque-motor or precision table, provide the permitted starting torque, running torque and temperature rise. These values are often more useful than requesting preload only by suffix.
Replacement and Interchangeability
Matching the 120 × 150 × 16 mm boundary dimensions does not prove full interchangeability. Confirm:
complete model and suffix;
shoulder diameters and corner radii;
bearing-seat depth and clamping arrangement;
standard clearance, reduced clearance or preload;
radial and axial running accuracy;
lubricant and corrosion protection;
load ratings and permitted torque;
inspection and traceability requirements.
A common published reference mounting arrangement for SX011824 uses 24 M6 clamping screws. This is engineering background only; the final housing and fasteners must follow the approved LYDL drawing and the customer’s load calculation.
LYDL is not affiliated with Schaeffler, INA, THK, IKO or HIWIN. Brand names are used only to identify technical references and replacement requirements.
Mounting Guidance for SX011824
The split outer ring must be supported and clamped evenly by the surrounding structure. Retaining rings or transport ties keep the sections together during handling but do not support operating loads.
Clean the shaft, housing, clamping rings and assembly area.
Verify mounting-face flatness and shoulder perpendicularity.
Check that corner radii do not contact the bearing faces.
Use a sufficiently rigid clamping ring or housing flange.
Tighten screws gradually in a diagonal sequence.
Rotate the bearing during staged tightening.
Monitor torque and investigate any sudden increase.
Measure radial and axial runout after installation.
For a vertically mounted or tilting axis, secure all components against displacement during assembly. Include gravity-induced axial force and moment load in the selection calculation.
Lubrication and Environmental Protection
Standard SX011824 is an open bearing without integral seals. The adjacent construction must protect it from dust, chips, moisture and cleaning fluids.
Grease selection depends on speed, temperature, duty cycle, oscillation angle and required torque. High-speed or continuously rotating applications require additional thermal review.
Clean-room, vacuum, low-temperature or high-temperature service requires an approved lubricant. Do not assume that standard grease is suitable for a special environment.
Manufacturing and Quality Control at LYDL
LYDL controls raw-material inspection, precision turning, heat treatment, cryogenic stabilization, V-raceway form grinding and raceway superfinishing. Rollers are measured and optically sorted before assembly.
For controlled-clearance or preloaded bearings, rings and rollers can be micro-sorted. Deep cleaning and demagnetization help reduce contamination-related torque variation.
Inspection can include dimensions, ring accuracy, radial and axial runout, internal clearance, preload and rotational torque. Customer-defined limits should be confirmed before production.
Available options include P5, P4 and P2 accuracy, selected grease, controlled preload, serial marking, corrosion protection, inspection documentation and OEM packaging.
Inspection Documents and Export Packaging
Depending on the order, LYDL can provide dimensional reports, runout records, hardness reports, material certificates, clearance or torque results and final inspection documentation.
Standard export protection can include anti-rust treatment, protective wrapping, an individual carton, shock-resistant cushioning and an export plywood case. All labels, photographs and documents should display the exact SX011824 designation.
Technical References and Source Notes
Technical terminology and general engineering principles used on this page were checked against the following sources:
Schaeffler/INA – Crossed Roller Bearings for High Precision Applications, Publication KSX
Reference for SX structure, designation, dimension series, mounting, clearance and preload terminology.
THK – Cross-Roller Ring Product Information
Reference for crossed-roller arrangement and combined-load principles.
IKO – Crossed Roller Bearings Technical Catalogue
Supplementary reference for crossed roller bearing construction and selection.
HIWIN – Crossed Roller Bearing Product Information
Supplementary reference for crossed roller bearing types and applications.
These sources provide general engineering context only. They do not make brand-specific ratings, coatings or suffixes automatically interchangeable.
Information Required for an SX011824 Quotation
Provide the quantity, complete designation, radial and axial loads, moment arm, speed, duty cycle and rotating ring. Also specify accuracy, clearance or preload, permitted torque, lubricant, environment and required documents.
For replacement projects, include the existing label and installation drawing. For new designs, provide the shaft, housing, clamping and load arrangement.
Frequently Asked Questions
When should SX011824 be selected instead of SX011820?
Choose SX011824 when the design needs a 120 mm bore or higher reference load ratings. SX011820 remains more compact and lighter when its 100 mm bore and ratings are sufficient.
Can SX011824 support a direct-drive torque motor?
It can support suitable torque-motor modules when load, preload, speed and heat are correctly evaluated. Provide motor torque, rotor mass, duty cycle and permitted bearing torque.
Is SX011824 suitable for a vertically mounted rotary axis?
Yes, subject to calculation. Include the constant axial load from gravity, the centre-of-mass offset, acceleration and any external process force.
How does housing stiffness affect SX011824 accuracy?
An insufficiently rigid or uneven housing can distort the split outer ring. This may increase torque, reduce running accuracy and create uneven roller loading.
Can SX011824 carry both belt force and axial process load?
Potentially, but the radial belt force, axial load and resulting moment must be evaluated together. Pulley position and belt tension are required for technical review.
Can LYDL replace SX011824-A-VSP or SX011824-RR?
Replacement requires confirmation of the full suffix, preload, coating, accuracy, load data, lubrication and mounting arrangement. Brand-specific suffixes must not be assumed to have a universal meaning.
Is standard SX011824 sealed?
No. Standard LYDL LRC 12016/SX011824 is open, so the surrounding structure should provide environmental protection.
Which inspection records are useful for a precision rotary table?
Radial and axial runout, rotational torque, clearance or preload, dimensional accuracy, hardness or material certification and serial traceability may be specified according to the project.
Request a Quote for SX011824
LYDL supplies standard and customized SX011824 crossed roller bearings for rotary tables, torque-motor modules, machine axes and precision inspection equipment. Contact LYDL with your loads, speed, accuracy, torque and preload requirements to receive a technical review and quotation.
