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The XU050077 is a highly rigid crossed roller slewing bearing measuring 40 mm (ID) × 112 mm (OD) × 22 mm (Width). Featuring mounting holes directly integrated into both the inner and outer rings, it eliminates the need for separate housing flanges and presser flanges, significantly reducing machine weight and assembly time. Engineered to handle simultaneous radial, axial, and moment loads with exceptional rotational accuracy, it is the ideal bearing solution for industrial robotics, harmonic drive gearboxes, and precision medical equipment. We supply high-volume B2B orders with customizable precision grades (P5/P4/P2) and OEM support.
The XU Series Crossed Roller Bearing (specifically the XU050077) is designed with cylindrical rollers arranged crosswise (perpendicular to each other) in a 90° V-groove raceway. This unique internal configuration allows a single bearing to simultaneously carry heavy loads in all directions, including radial, axial (thrust), and overturning moment loads. Because mounting holes are machined directly into the inner and outer rings (eliminating the need for separate mounting plates), the bearing achieves high rigidity and rotational accuracy regardless of whether the inner or outer ring is rotating.
Use the dimensional and load data below to verify compatibility with your precision machinery designs.
Item | Specification |
|---|---|
Model Number | XU050077 |
Inner Diameter (d) | 40 mm |
Outer Diameter (D) | 112 mm |
Width / Height (H) | 22 mm |
Roller Pitch Diameter (Dpw) | 77 mm |
Mounting Holes (Outer Ring) | 6 holes (φ 6.6 mm) |
Mounting Holes (Inner Ring) | 6 holes (M8 threaded) |
Basic Dynamic Axial Load (Ca) | 19.8 kN – 22.4 kN |
Basic Static Axial Load (C0a) | 29 kN – 41.0 kN |
Basic Dynamic Radial Load (Cr) | 14.1 kN – 14.3 kN |
Weight | ≈ 1.4 kg |
Our XU050077 bearings are engineered to meet the stringent demands of advanced automation:
Material: Forged from high-purity GCr15 bearing steel to ensure long-term durability and fatigue resistance.
Precision Grades: Available in P5 (standard), P4, or ultra-precision P2 classes, ensuring minimal runout for high-accuracy positioning.
Preloaded Clearance: Factory-adjusted negative clearance (preload) ensures zero backlash, providing immediate and stiff response to directional changes.
The compact, space-saving design of the XU050077 makes it critical for compact rotary mechanisms:
Joints and swivel units of industrial robotics and collaborative robots (cobots).
Harmonic drive gearboxes and precision rotary actuators.
Medical scanning equipment (e.g., CT/MRI rotating bases).
Rotary indexing tables and precision measuring instruments.
We cater to precision machinery builders and global bearing distributors with reliable, factory-direct supply chains:
Quality Assurance: All bearings are rigorously tested and come with a 12-month quality guarantee.
OEM & Customization: We accept OEM branding and custom modifications (such as specific anti-rust coatings or specialized greases) based on your technical requirements.
Lead Time & Stock: Sufficient stock is maintained for rapid 3–15 day fulfillment. Contact our sales team for bulk pricing and immediate delivery schedules.
The XU Series Crossed Roller Bearing (specifically the XU050077) is designed with cylindrical rollers arranged crosswise (perpendicular to each other) in a 90° V-groove raceway. This unique internal configuration allows a single bearing to simultaneously carry heavy loads in all directions, including radial, axial (thrust), and overturning moment loads. Because mounting holes are machined directly into the inner and outer rings (eliminating the need for separate mounting plates), the bearing achieves high rigidity and rotational accuracy regardless of whether the inner or outer ring is rotating.
Use the dimensional and load data below to verify compatibility with your precision machinery designs.
Item | Specification |
|---|---|
Model Number | XU050077 |
Inner Diameter (d) | 40 mm |
Outer Diameter (D) | 112 mm |
Width / Height (H) | 22 mm |
Roller Pitch Diameter (Dpw) | 77 mm |
Mounting Holes (Outer Ring) | 6 holes (φ 6.6 mm) |
Mounting Holes (Inner Ring) | 6 holes (M8 threaded) |
Basic Dynamic Axial Load (Ca) | 19.8 kN – 22.4 kN |
Basic Static Axial Load (C0a) | 29 kN – 41.0 kN |
Basic Dynamic Radial Load (Cr) | 14.1 kN – 14.3 kN |
Weight | ≈ 1.4 kg |
Our XU050077 bearings are engineered to meet the stringent demands of advanced automation:
Material: Forged from high-purity GCr15 bearing steel to ensure long-term durability and fatigue resistance.
Precision Grades: Available in P5 (standard), P4, or ultra-precision P2 classes, ensuring minimal runout for high-accuracy positioning.
Preloaded Clearance: Factory-adjusted negative clearance (preload) ensures zero backlash, providing immediate and stiff response to directional changes.
The compact, space-saving design of the XU050077 makes it critical for compact rotary mechanisms:
Joints and swivel units of industrial robotics and collaborative robots (cobots).
Harmonic drive gearboxes and precision rotary actuators.
Medical scanning equipment (e.g., CT/MRI rotating bases).
Rotary indexing tables and precision measuring instruments.
We cater to precision machinery builders and global bearing distributors with reliable, factory-direct supply chains:
Quality Assurance: All bearings are rigorously tested and come with a 12-month quality guarantee.
OEM & Customization: We accept OEM branding and custom modifications (such as specific anti-rust coatings or specialized greases) based on your technical requirements.
Lead Time & Stock: Sufficient stock is maintained for rapid 3–15 day fulfillment. Contact our sales team for bulk pricing and immediate delivery schedules.
