SX011814 is a compact precision crossed roller bearing with a 70 mm bore, 90 mm outside diameter and 10 mm width. Within the LYDL product range, it corresponds to LRC 7010 and weighs approximately 0.3 kg, making it suitable for small rotary mechanisms where installation space and moving mass must be controlled.
The bearing uses an integrated inner ring and a circumferentially split outer ring. Cylindrical rollers arranged alternately at 90 degrees allow one compact bearing to support radial load, bidirectional axial load and overturning moment simultaneously.
Compared with SX011820, SX011814 has a smaller mounting envelope and lower mass. It is particularly suitable for optical alignment stages, compact measuring heads, laboratory automation, medical instruments and lightweight positioning units.
LYDL can supply SX011814 in different accuracy, clearance and preload configurations, with selected grease, customized marking, inspection records and export packaging according to the application requirements.
SX011814 Crossed Roller Bearing Overview
The SX011814 crossed roller bearing is a compact precision bearing with a 70 mm bore, 90 mm outside diameter and 10 mm width. Within the LYDL range, it corresponds to LRC 7010 and weighs approximately 0.3 kg, making it well suited to small rotary mechanisms where installation space and moving mass must both be controlled.
SX011814 uses an integrated inner ring and a circumferentially split outer ring. Cylindrical rollers are arranged alternately at 90 degrees between precision-ground raceways, enabling one compact bearing to support radial load, axial load from both directions and overturning moment. Its narrow 10 mm width is particularly useful in optical stages, compact measuring heads, laboratory automation and lightweight positioning units.
For the complete dimensional range, visit the LYDL SX Cross Roller Bearing Series page.
The values above are LYDL reference data for LRC 7010/SX011814. Final selection must also consider moment load, speed, duty cycle, mounting rigidity, lubrication and the required operating life.
Why SX011814 Is Different
10 mm Narrow-Section Design
The difference between the bore and outside diameter is only 20 mm, producing a compact 10 mm radial cross-section. This helps designers reduce the diameter and width of a rotary module without using separate radial and thrust bearings.
Low Bearing Mass
At approximately 0.3 kg, SX011814 adds limited mass to a small rotating or oscillating assembly. This is valuable in optical scanning heads, sensor positioning units and laboratory mechanisms where drive torque and acceleration must remain controlled.
Stable Integrated Inner Ring
The one-piece inner ring provides a continuous shaft interface and is particularly suitable when the inner ring is the primary rotating component. The split outer ring allows roller assembly but must be uniformly supported by the adjacent housing.
Combined-Load Support
Alternately oriented cylindrical rollers create line contact with the raceways. The bearing can therefore resist radial force, bidirectional axial force and tilting moment within one compact unit. For a general explanation of these load directions, see the LYDL Cross Roller Bearing Guide.
Typical Applications for SX011814
Optical Alignment and Scanning Stages
Compact optical stages often carry an offset lens, camera or sensor. SX011814 helps resist the resulting moment load while maintaining a short axial assembly length. A controlled-clearance or preloaded version can be specified when repeatable angular positioning is more important than minimum torque.
Precision Measuring Heads
Roundness instruments, compact rotary inspection fixtures and calibration devices are sensitive to deflection and mounting error. The 70 mm bore provides space for a shaft, cable path or test component, while the 90 mm outside diameter keeps the measuring head compact.
Laboratory and Medical Automation
Sample positioners, diagnostic mechanisms and small rotary carriages benefit from the bearing’s low mass and multidirectional load capability. Cleanliness, lubricant and corrosion-protection requirements should be defined according to the operating environment.
Lightweight Robotics and Automation
SX011814 can be considered for compact robotic wrists, pick-and-place rotary units and inspection manipulators when the surrounding structure can clamp the split outer ring correctly. For designs that require direct mounting holes, an RU, XU or XSU configuration may be more convenient.
Reference Load Ratings and Selection Notes
The standard LYDL reference ratings are Ca 18 kN, C0a 60 kN, Cr 12 kN and C0r 30 kN. These figures describe different load directions and must not be added together or treated as simultaneous permissible loads.
For applications with combined radial, axial and moment loading, the forces must be converted into suitable equivalent values. Slowly oscillating or stationary mechanisms should also be checked for static safety and local raceway deformation. Load ratings published by another manufacturer or for another suffix must not be substituted for LYDL values without technical confirmation.
Choose SX011814 when the mechanism needs a 70 mm bore, minimum cross-section and lower rotating mass. Choose SX011820 when a 100 mm bore and higher reference load ratings are required.
Neither model should be selected only by comparing weight or outside diameter. Shaft size, moment arm, rigidity and mounting geometry remain decisive.
Clearance, Preload and Suffix Interpretation
Suffix meanings are manufacturer- and catalogue-specific. Common technical references include:
No suffix: usually a standard-clearance configuration, subject to confirmation.
RL0: commonly identifies reduced clearance.
VSP: commonly identifies a preloaded bearing.
RR: a Schaeffler/INA-specific reference associated with its corrosion-resistant treatment.
A: may indicate a revised design or catalogue generation and must not be ignored when checking replacement.
P5, P4 or P2: LYDL accuracy requirements that should be stated separately in the order.
Preload can improve rigidity and repeatability, but excessive preload increases torque and heat. For small mechanisms driven by compact motors, specify the permitted starting and running torque in addition to the desired accuracy.
Interchangeability and Replacement Checks
Matching the designation or the 70 × 90 × 10 mm boundary dimensions is not enough to prove drop-in interchangeability. Before replacing another brand, confirm:
the complete designation and suffix;
shoulder dimensions and permissible corner radii;
radial clearance, axial tilting clearance or preload;
radial and axial running accuracy;
lubricant and corrosion-protection requirements;
ring clamping and housing arrangement;
load ratings and calculation basis;
required inspection documents.
LYDL is not affiliated with Schaeffler, INA, THK, IKO or HIWIN. Brand references are used only to help buyers identify the requested dimensional and operating requirements.
Mounting Recommendations for the 10 mm Section
The narrow rings of SX011814 can be influenced by uneven mounting surfaces or excessive clamping force. Protecting the bearing’s accuracy therefore requires careful control of the adjacent structure.
Keep the shaft, housing, clamping rings and work area clean.
Check mounting-face flatness and shoulder perpendicularity.
Support and clamp the split outer ring evenly around its circumference.
Do not treat transport retaining rings or ties as load-bearing components.
Tighten fasteners gradually in a diagonal sequence.
Rotate the bearing during staged tightening and monitor torque changes.
Avoid impact loading or direct hammering on either ring.
Measure radial runout, axial runout and rotational resistance after assembly.
Provide external protection against dust and moisture because the standard bearing is open.
If torque rises sharply after clamping, loosen the assembly and inspect the seating depth, housing roundness and bolt-load distribution rather than forcing the bearing to rotate.
Manufacturing and Quality Control at LYDL
Small crossed roller bearings require close control of ring roundness, V-raceway geometry, roller matching and assembly clearance. LYDL production processes include raw-material inspection, precision turning, heat treatment, cryogenic stabilization, V-raceway form grinding, raceway superfinishing, roller optical sorting, precision measurement, deep cleaning and demagnetization.
For high-precision or preloaded orders, bearing components can be micro-sorted before clean assembly. Dimensional accuracy, clearance or preload, rotational torque and running accuracy are inspected according to the approved product requirement.
Available options include P5, P4 and P2 accuracy, controlled clearance, preload, selected grease, customized laser marking, serial traceability, corrosion protection, customer-specific inspection and OEM packaging.
Inspection, Packaging and Export Documentation
Depending on the purchase agreement, LYDL can provide dimensional records, running-accuracy results, hardness reports, material certificates, clearance or torque records and final inspection documents.
Standard export protection can include anti-rust treatment, protective wrapping, an individual carton, shock-resistant cushioning and an export plywood case. Product photographs, labels and inspection reports should all show the exact SX011814 designation.
Technical References and Source Notes
Technical terminology and general engineering principles used on this page were cross-checked against the following sources:
Schaeffler/INA – Crossed Roller Bearings for High Precision Applications, Publication KSX
Reference for SX-series structure, designation, dimension series, mounting, clearance and preload terminology.
THK – Cross-Roller Ring Product Information
Reference for the 90-degree crossed-roller arrangement and combined radial, axial and moment-load capability.
IKO – Crossed Roller Bearings Technical Catalogue
Supplementary industry reference for crossed roller bearing structures, selection and application principles.
HIWIN – Crossed Roller Bearing Product Information
Supplementary reference for crossed roller bearing types and precision rotary applications.
These sources provide general engineering context only. They do not indicate an affiliation between LYDL and the referenced organizations, and they do not make different brands, load ratings or suffix configurations automatically interchangeable.
Information Required for an SX011814 Quotation
Please provide the requested quantity, complete suffix, application loads, moment arm, speed or oscillation angle, duty cycle, accuracy grade, clearance or preload, lubricant, operating environment and required inspection documents.
A drawing or photograph of the existing bearing label is recommended for replacement projects.
Frequently Asked Questions
Is SX011814 the smallest model in the listed LYDL LRC/SX table?
Yes. SX011814/LRC 7010 is the smallest model in the currently listed LYDL LRC/SX dimension table, with a 70 mm bore, 90 mm outside diameter and 10 mm width. Smaller custom bearings require a separate feasibility review.
Is the 70 mm bore useful for routing cables or optical components?
Yes. The open central bore can provide space for a shaft, cable bundle, optical path or test component. The actual usable passage also depends on the shaft, shoulders and surrounding structure.
Can SX011814 be installed without an outer clamping structure?
Normally no. Its outer ring is circumferentially split and needs uniform support and axial clamping from the adjacent construction. Transport retaining devices are not structural fasteners.
Does the smaller size mean SX011814 can always run faster than SX011820?
No. Its compact size may permit a higher speed under comparable conditions, but the safe operating speed still depends on preload, lubricant, temperature, load, mounting accuracy and duty cycle.
How can mounting-induced torque be reduced?
Use accurately machined seating surfaces, clamp the outer ring evenly, tighten bolts in stages and check rotation after each tightening step. A sudden torque increase often indicates distortion or uneven seating.
Can LYDL supply SX011814 for a precision measuring instrument?
Yes. State the permissible radial and axial runout, torque range, clearance or preload and required inspection method. LYDL can evaluate P4, P2 or customer-defined requirements.
Can SX011814 replace INA SX011814-A or SX011814-VSP?
Replacement requires confirmation of the complete suffix, preload or clearance, accuracy, load ratings, shoulders, lubricant and mounting design. Identical boundary dimensions alone are insufficient.
What documents should be requested for an optical or metrology application?
Useful records can include dimensional inspection, radial and axial running accuracy, clearance or rotational torque, hardness or material certification and serial traceability, depending on the agreed order.
Request a Quote for SX011814
LYDL supplies standard and customized SX011814 crossed roller bearings for optical stages, measuring heads, laboratory equipment and compact automation systems. Contact LYDL with your quantity, loads, speed, accuracy and preload requirements to receive a technical review, quotation and available inspection-document options.
