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Home Product UMSB20-45 Ball Bearing 45mm OD High-Speed Precision for Robotics and Machinery
UMSB20-45 *Outside diameter（mm）: 45

UMSB20-45 Ball Bearing 45mm OD High-Speed Precision for Robotics and Machinery

UMSB20-45 linear guide
45mm linear bearing
Linear rail unit 45mm
UMSB20-45 *Outside diameter（mm）: 45
Categories:Power Transmission
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Product Description

The UMSB20-45 linear guide is a high-precision mechanical unit designed for linear motion applications, featuring a robust 45mm outer diameter profile. This 45mm linear bearing integrates a hardened steel rail and ball carriage system, delivering exceptional load capacity (static/dynamic ratings up to 20kN) and smooth operation with minimal friction. The linear rail unit 45mm supports bidirectional movement, offers ±0.01mm repeatability, and operates within a temperature range of -20°C to +120°C. It is commonly deployed in CNC machining, automated assembly lines, and robotics due to its corrosion-resistant coating and IP65-rated dust/water protection. Key advantages include vibration damping, low-noise performance, and compatibility with modular mounting systems, though periodic lubrication is required for sustained efficiency. The unit accommodates travel lengths up to 5 meters and integrates standardized bolt patterns for seamless connection with servo motors or slide actuators. Its compact design minimizes spatial footprint while maintaining rigidity under high-speed or heavy-load industrial conditions.
Parameter Specification
Model Name UMSB20-45 Linear Guide
Outside Diameter 45mm
Nominal Load Capacity Dynamic: 15.5kN / Static: 22.3kN
Rail Material High-Carbon Steel with Hardened Treatment
Carriage Material Precision-Ground Stainless Steel
Precision Grade C3 Standard
Operating Temperature -30°C to +120°C
Lubrication Pre-Lubricated with High-Viscosity Grease
Seal Type Double-Lip Contact Seals
Mounting Hole Spacing 60mm Pitch (Standard Pattern)
Corrosion Resistance Class CR4 (ISO 9227)
Compatibility 45mm Linear Bearing Systems
Product Type Linear Rail Unit 45mm Series
question:What is the warranty policy?
answer:Standard one-year warranty covers manufacturing defects. Contact support for details.
question:Do you accept payment after delivery?
answer:Full payment required before shipment. Contact us for custom arrangements.
question:Why are brand labels removed from products?
answer:Labels removed per distribution agreements or regional regulations. Confirm via support.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
question:What is the warranty policy?
answer:Standard one-year warranty covers manufacturing defects. Contact support for details.
question:Do you accept payment after delivery?
answer:Full payment required before shipment. Contact us for custom arrangements.
question:Why are brand labels removed from products?
answer:Labels removed per distribution agreements or regional regulations. Confirm via support.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
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