RB5013 cross roller bearing has a 50 mm bore, 80 mm outer diameter and 13 mm width. Its catalogue-reference radial load ratings are 16.7 kN dynamic and 20.9 kN static, providing a practical balance between compact dimensions, rigidity and load capacity.
The RB5013 uses an integrated inner ring and split outer ring. Cylindrical rollers are arranged alternately at 90 degrees, enabling the bearing to support radial loads, axial loads and overturning moments in a single compact unit.
Typical applications include industrial robot joints, precision rotary tables, indexing mechanisms, semiconductor equipment, optical inspection systems and measuring instruments.
LYDL can provide P5, P4 and P2 accuracy grades subject to technical confirmation. Controlled clearance or preload, open or sealed configurations, grease selection, custom marking, inspection documents and export packaging are available according to application requirements.
RB5013 cross roller bearing is a compact precision bearing with a 50 mm bore, 80 mm outer diameter and 13 mm width. It is designed for rotary mechanisms requiring high rigidity, combined-load capacity and accurate positioning within a limited installation space.
The bearing has catalogue-reference radial load ratings of 16.7 kN dynamic and 20.9 kN static, with an approximate mass of 0.27 kg. Compared with smaller RB-series models, RB5013 provides a larger bore and increased load capacity without requiring the installation space of larger cross roller bearings.
| Specification | Catalogue Reference |
|---|---|
| Bearing model | RB5013 |
| Bearing type | RB-series cross roller bearing |
| Structure | Integrated inner ring and split outer ring |
| Bore diameter, d | 50 mm |
| Outer diameter, D | 80 mm |
| Bearing width, B | 13 mm |
| Roller pitch circle diameter, Dpw | 64 mm |
| Inner ring shoulder diameter, ds | 57.4 mm |
| Outer ring shoulder diameter, Dh | 72 mm |
| Basic dynamic radial load rating, C | 16.7 kN |
| Basic static radial load rating, C₀ | 20.9 kN |
| Approximate mass | 0.27 kg |
| Standard bearing material | GCr15 / 100Cr6 bearing steel |
| Available accuracy grades | P5 / P4 / P2, subject to confirmation |
| Corresponding model references | CRB5013 / NRXT5013 |
Technical note: These values are provided for catalogue reference. The LYDL drawing and technical datasheet confirmed for the order shall take precedence. Load ratings must not be treated as direct maximum operating loads. Final selection should consider radial load, axial load, overturning moment, speed, duty cycle, mounting rigidity, lubrication and required service life.
The RB5013 has an integrated inner ring and a split outer ring. Cylindrical rollers are arranged alternately at 90 degrees inside precision-ground V-shaped raceways. Adjacent rollers face opposite directions and are separated by spacers that help control roller position and reduce direct friction between the rolling elements.
This arrangement allows one RB5013 bearing to support:
The integrated inner ring makes RB5013 particularly suitable for mechanisms where inner-ring rotational accuracy is important. The split outer ring must be supported and clamped correctly by the surrounding housing or flange.
The crossed roller arrangement enables one compact bearing to carry multidirectional loads. This can simplify the surrounding bearing arrangement when confirmed through engineering calculation.
Cylindrical rollers provide line contact with the raceways, helping control elastic displacement under radial, axial and moment loading.
With a width of only 13 mm, RB5013 provides a 50 mm through-bore while maintaining a relatively compact outer diameter of 80 mm.
Precision raceway grinding, roller size matching and controlled clearance or preload contribute to stable rotational torque and repeatable positioning.
RB5013 is commonly considered for:
Bearing suitability must be confirmed from the complete operating conditions rather than the model number or boundary dimensions alone.
| Model | Dimensions | Dynamic Radial Rating | Static Radial Rating | Approx. Mass |
| RB4010 | 40 × 65 × 10 mm | 8.33 kN | 10.6 kN | 0.16 kg |
| RB5013 | 50 × 80 × 13 mm | 16.7 kN | 20.9 kN | 0.27 kg |
| RB6013 | 60 × 90 × 13 mm | 18.0 kN | 24.3 kN | 0.30 kg |
Choose RB4010 when minimum size and weight are the main priorities. RB5013 provides a balanced option for a 50 mm shaft with substantially higher catalogue load ratings. RB6013 should be considered when a 60 mm bore or additional static capacity is required.
These models have different boundary and shoulder dimensions and are not directly interchangeable.
LYDL can manufacture RB5013 according to different precision and operating requirements. Available options may include:
All options are subject to technical confirmation. Accuracy grade alone does not determine installed performance. Shaft accuracy, housing geometry, mounting-face flatness, clamping force and assembly procedure can affect runout and rotational torque.
For enquiries using designations such as RB5013UUCC0, RB5013 P4 or RB5013 P2, please provide the complete original model number or drawing. Suffix definitions may vary between manufacturers.
The production and inspection process for precision RB5013 bearings may include:
The exact process route and inspection requirements may vary according to the accuracy grade, bearing configuration and customer-approved quality plan.
Correct installation is necessary to maintain bearing accuracy and service life.
For P4 or P2 applications, the shaft, housing and mounting tolerances should be reviewed before production.
RB5013 is a recognized cross roller bearing model designation. Depending on the manufacturer or catalogue system, corresponding references may include:
A corresponding model number does not automatically guarantee interchangeability. Before replacement, verify:
Luoyang Deeplink Technology Co., Ltd. manufactures precision cross roller bearings for industrial automation, robotics, machine tools, measuring equipment and other controlled rotary applications.
LYDL can support customers with:
Each enquiry is reviewed according to the required quantity, accuracy grade, internal setting, operating conditions and documentation requirements.
RB5013 has a 50 mm bore, 80 mm outer diameter and 13 mm width. Its roller pitch circle diameter is 64 mm.
The crossed roller arrangement enables RB5013 to carry radial loads, axial loads in both directions and overturning moments. The actual permissible operating load must be determined from the complete application conditions.
The catalogue-reference basic dynamic radial load rating is 16.7 kN, and the basic static radial load rating is 20.9 kN.
Yes. P4 and P2 options are available subject to technical review, quantity and final drawing confirmation.
Open or sealed configurations may be supplied according to the required operating environment. Seal type, lubricant and rotational torque requirements should be confirmed before ordering.
It may be considered as a dimensional cross-reference, but complete interchangeability must be confirmed from drawings, tolerances, clearance or preload, seals and accuracy requirements.
Please provide the following information for an accurate quotation:
Email: sales@luoyangdeeplink.com Website: www.lydl-bearing.com Company: Luoyang Deeplink Technology Co., Ltd.
Technical terminology and catalogue comparison were reviewed with reference to:
The dimensions and load ratings shown on this page are catalogue references. The LYDL drawing and technical documentation confirmed for the order shall prevail.
THK and other manufacturer names are trademarks of their respective owners. Luoyang Deeplink Technology Co., Ltd. is an independent manufacturer and is not affiliated with or authorized by THK. Model references are provided solely for technical identification and comparison.