E-mail:nomi@kernal-service.com Address:Hong Kong, China

QUICK QUOTE

Open Nav

Products

Products
Home Product 12x21x5 High Precision Thin Section Bearing for Robotics, Aerospace & Medical
12*21*5 (precision level)

12x21x5 High Precision Thin Section Bearing for Robotics, Aerospace & Medical

12x21x5 needle roller bearing
high precision 12x21x5 bearing
precision engineered roller bearings 12x21x5
12*21*5 (precision level)
High precision 12x21x5 needle roller bearing, precision engineered for accuracy and durability in compact machinery. Features precision engineered roller bearings 12x21x5 design for smooth operation under high-speed, high-load conditions.
Categories:Power Transmission
END INQUIRY

Product Description

The 12x21x5 needle roller bearing is a high-precision engineered component designed for applications demanding minimal tolerance deviations and exceptional load capacity. With compact dimensions of 12mm inner diameter, 21mm outer diameter, and 5mm thickness, this precision engineered roller bearing supports radial forces up to 4.8kN while operating within -30°C to +120°C temperature ranges. The chrome steel construction with optional cage configurations ensures smooth rotation at speeds reaching 12,000 rpm. Ideal for automotive transmissions, robotics, and precision machinery, the high precision 12x21x5 bearing excels in space-constrained environments requiring low-friction motion. Critical advantages include hardened raceways for extended service life and maintenance-free operation when pre-lubricated, though alignment sensitivity during installation requires technical expertise. Compatible with standard housing designs, it achieves vibration-free performance in both oil-mist and grease lubrication systems.
Parameter Specification
Bearing Type 12x21x5 Needle Roller Bearing
Inner Diameter 12 mm
Outer Diameter 21 mm
Width 5 mm
Precision Class ABEC-1 / ISO P6
Material High-carbon chromium steel (GCr15)
Radial Clearance C2 (5-11 μm)
Load Capacity Dynamic: 3.8 kN / Static: 1.9 kN
Surface Hardness 60-64 HRC
Lubrication Pre-lubricated with lithium complex grease
Temperature Range -30°C to +120°C
Tolerance Level High Precision 12x21x5 Bearing Standard
Surface Finish Super-finished raceways (Ra ≤ 0.2 μm)
question:Why can other suppliers find and supply discontinued models you cannot price?
answer:Some suppliers may access leftover stock or alternative channels, but we prioritize genuine quality and availability guarantees.
question:Do you offer technical selection support?
answer:Yes, our experts assist in model selection and provide technical guidance to meet your project requirements.
question:What is the warranty policy?
answer:Standard warranty covers defects in materials or workmanship for 12 months from delivery, unless specified otherwise.
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:Why can other suppliers find and supply discontinued models you cannot price?
answer:Some suppliers may access leftover stock or alternative channels, but we prioritize genuine quality and availability guarantees.
question:Do you offer technical selection support?
answer:Yes, our experts assist in model selection and provide technical guidance to meet your project requirements.
question:What is the warranty policy?
answer:Standard warranty covers defects in materials or workmanship for 12 months from delivery, unless specified otherwise.
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.
Home About Products News Contact Us
Quick quote
Even if not present on our website, we probably have the spare parts you are looking for. Specify the quantities and we will send you our quote!
Product detail
    • + Add another part number