The RB7013 cross roller bearing measures 70×100×13 mm, with basic radial load ratings of 19.4 kN dynamic and 27.7 kN static. Its large 70 mm through-bore and slim 13 mm width provide a compact solution for precision rotary systems requiring high rigidity and limited axial space.
The bearing uses an integrated inner ring and a split outer ring. Cylindrical rollers arranged alternately at 90° enable one compact bearing to support radial loads, axial loads and overturning moments.
Typical applications include industrial robot joints, indexing tables, semiconductor equipment, optical inspection systems, medical devices and precision automation machinery.
LYDL offers P5, P4 and P2 accuracy options, clearance or preload control, open or sealed configurations, lubrication selection and OEM support, subject to technical confirmation.
RB7013 Cross Roller Bearing Overview
The RB7013 cross roller bearing is a compact precision bearing with a 70 mm bore, 100 mm outside diameter and 13 mm width. It combines a large central opening with a slim axial section, making it suitable for rotary mechanisms that require high rigidity, accurate positioning and efficient use of installation space.
Its 70 mm through-bore provides routing space for hollow shafts, drive components, electrical cables, pneumatic lines, optical paths or other services. Compared with the RB6013, the RB7013 provides a larger bore and higher static radial load rating while retaining the same 13 mm width.
For additional dimensions and load capacities, see our complete RB Series Cross Roller Bearings range.
The stated load ratings are catalogue-reference basic radial ratings, not maximum permissible operating loads. Final bearing selection must also consider axial load, radial load, overturning moment, speed, duty cycle, mounting rigidity, lubrication, temperature and required service life.
Design and Operating Principle
The RB7013 uses an integrated inner ring and a split outer ring. Cylindrical rollers are arranged alternately at right angles along a single raceway, allowing adjacent rollers to carry loads in different directions.
This crossed arrangement enables the bearing to support:
Radial loads
Axial loads in both directions
Combined radial and axial loads
Overturning moments
A correctly selected RB7013 can simplify a precision rotary support that might otherwise require two conventional bearing positions. Any replacement of an existing bearing arrangement must be verified through load, rigidity, service-life and mounting calculations.
The RB structural description and crossed roller operating principle are consistent with established technical information published by THK and IKO. Official sources are listed in the Technical References section.
Key Benefits of RB7013
Large 70 mm Through-Bore
The central opening accommodates hollow shafts, wiring, pneumatic tubing, optical components and other internal services.
Compact 13 mm Width
The slim axial section helps reduce the height and weight of rotary tables, robot joints and positioning mechanisms.
High Moment Rigidity
The crossed roller arrangement helps control tilting deformation under overturning moments, supporting stable angular positioning.
Combined Load Support
One RB7013 can support radial, axial and moment loads simultaneously when correctly selected, mounted and lubricated.
Higher Static Rating Than RB6013
The RB7013 provides a basic static radial load rating of 27.7 kN, compared with 24.3 kN for the RB6013, while retaining the same 13 mm width.
Configurable Precision
Accuracy grade, clearance, preload, sealing and lubrication can be selected according to the application, subject to technical confirmation.
Typical Applications
RB7013 is suitable for precision rotary systems that require a large central opening, compact axial height and stable positioning under combined loads.
Typical applications include:
Industrial robot joints
Robot positioners and rotary axes
CNC indexing tables
Compact rotary and tilting tables
Semiconductor handling equipment
Optical inspection systems
Coordinate-measuring equipment
Medical imaging and diagnostic devices
Precision camera and sensor platforms
Automated assembly and testing machinery
Need an RB7013 Drawing or Quotation?
Send your required quantity, operating loads, speed, accuracy grade and mounting information to sales@luoyangdeeplink.com. Our engineering team can review the application before confirming the bearing configuration and quotation.
Choose the RB6013 Cross Roller Bearing when a 60 mm bore is sufficient and a smaller outside diameter is preferred.
Choose the RB7013 when the design requires a 70 mm through-bore, compact 13 mm width and additional static radial capacity compared with the RB6013.
Choose the RB8013 Cross Roller Bearing when an 80 mm bore and higher static radial load rating are required.
This comparison is intended for preliminary selection only. Final selection should be based on actual radial load, axial load, overturning moment, speed, duty cycle, mounting conditions and required service life.
Accuracy, Clearance and Preload Options
RB7013 bearings may be supplied in P5, P4 or P2 accuracy configurations, subject to order confirmation and the agreed inspection specification.
P5 is suitable for general precision machinery and automation.
P4 may be selected for higher-accuracy positioning and machine-tool applications.
P2 is intended for demanding rotational-accuracy requirements and requires precise control of the complete mounting system.
Internal clearance or preload should be selected according to load, rigidity, operating torque, temperature and mounting fit. Excessive preload may increase friction and heat, while insufficient preload may reduce rigidity and positioning stability.
Suffixes such as RB7013UUCC0 should be treated as manufacturer-specific reference codes. Please provide the complete designation, drawing or required operating condition when requesting a quotation.
Materials, Sealing and Lubrication
Standard rings and rollers can be manufactured from high-carbon chromium bearing steel such as GCr15 or 100Cr6, depending on the confirmed specification.
Open or sealed configurations may be available. Lubrication should be selected according to operating speed, temperature, required torque, contamination level, maintenance interval and working environment.
Special grease, low-temperature, cleanroom or other environmental requirements must be confirmed before production.
Quality Control
Depending on the agreed specification, RB7013 inspection may include:
Boundary dimension inspection
Raceway roundness and geometry inspection
Surface roughness inspection
Hardness verification
Radial and axial runout inspection
Internal clearance or preload verification
Starting and running torque inspection
Cleaning, appearance and packaging inspection
Inspection reports and special acceptance limits should be agreed before production.
Installation Recommendations
Correct installation is essential for achieving the required accuracy and operating life.
Clean the bearing, shaft, housing and mounting surfaces.
Confirm that the mounting dimensions match the approved drawing.
Check shoulder flatness, perpendicularity and supporting rigidity.
Do not apply impact force directly to the bearing rings or rollers.
Support and clamp the split outer ring evenly.
Tighten mounting bolts gradually in a diagonal sequence.
Avoid transmitting installation force through the rolling elements.
Check running torque, noise and runout after final tightening.
Protect open bearings from dust and contamination during assembly.
Housing fit, shaft fit and bolt torque depend on the actual application and should not be selected from the bearing dimensions alone.
Cross-Reference Guidance
CRB7013 and NRXT7013 may appear as preliminary cross-reference designations for 70×100×13 mm crossed roller bearings.
However, matching boundary dimensions do not guarantee complete interchangeability. Before replacing another manufacturer’s product, verify:
Dimensional tolerances
Accuracy class
Raceway and shoulder geometry
Internal clearance or preload
Open or sealed configuration
Lubrication specification
Dynamic and static load ratings
Running torque
Mounting requirements
Permissible speed and temperature
Third-party brand names and model numbers are used only for engineering identification. They do not imply affiliation, authorization, endorsement or guaranteed interchangeability.
Why Choose LYDL?
LYDL manufactures precision cross roller bearings for robotics, CNC machine tools, semiconductor equipment, medical devices and industrial automation.
Customers working with Luoyang Deeplink Technology Co., Ltd. can request:
Standard and customized bearing production
Drawing and specification review
Accuracy, clearance and preload selection
Open or sealed configurations
Application-specific lubrication
OEM marking and packaging
Prototype and production quantities
International export support
Final specifications are confirmed through the approved drawing, quotation or technical agreement.
Frequently Asked Questions
What are the RB7013 bearing dimensions?
The RB7013 has a 70 mm bore, 100 mm outside diameter and 13 mm width.
What loads can RB7013 support?
Its crossed roller arrangement supports radial loads, axial loads in both directions and overturning moments. The catalogue-reference basic radial ratings are 19.4 kN dynamic and 27.7 kN static.
What is the main difference between RB6013 and RB7013?
The RB7013 has a 10 mm larger bore and outside diameter while retaining the same 13 mm width. It also provides higher basic dynamic and static radial load ratings.
Is RB7013 suitable for robot joints?
Yes. Its 70 mm through-bore, compact width and moment rigidity make it suitable for many robot-joint and rotary-axis designs. Final suitability depends on the load spectrum, speed, mounting rigidity and required service life.
Is RB7013 available in P4 or P2 accuracy?
P5, P4 and P2 configurations may be supplied, subject to technical confirmation. The inspection method and acceptance limits should be agreed before production.
Can LYDL supply an RB7013UUCC0 configuration?
Sealed, clearance-controlled or preloaded configurations may be discussed. Because suffix definitions differ among manufacturers, provide the complete reference, drawing or operating requirements for confirmation.
Are CRB7013 and NRXT7013 interchangeable with RB7013?
They may share nominal boundary dimensions, but complete interchangeability must not be assumed. Accuracy, preload, sealing, ratings, torque and mounting requirements must be checked.
How can I obtain an RB7013 bearing price?
Send the required quantity, accuracy grade, clearance or preload, sealing requirement, application and delivery destination to sales@luoyangdeeplink.com.
Request an RB7013 Quotation
For accurate selection and pricing, please provide:
These sources are referenced for general bearing design principles, terminology, load-rating methods and dimensional tolerance concepts. LYDL is not affiliated with, endorsed by or presented as an authorized distributor of the referenced manufacturers unless expressly stated.
All third-party trademarks and product designations remain the property of their respective owners. Cross-reference information is provided only for preliminary engineering identification. The LYDL-approved drawing, quotation and technical agreement take precedence for the supplied product.
