Description
Product Features
- Brand: Pintech
- Diameter: 28 mm
- Material: cross body 20Cr, bearing 20Cr, roller pin GCr15
- Hardness: cross body HRC 58-64, bearing HRC 58-64, roller pin HRC 61-65
- Surface roughness: cross body Ra<0.4, bearing Ra<0.4, roller pin Ra<0.2
- Lubrication: 2# lithium grease for automotive
- Packing: plastic bag, white/color box, carton box, plywood pallet
- Time of delivery: 45 days
- Quality Certification: ISO9001:2008

Applications of U-joints 5320-3422039
Automotive Driveline Systems
Used in KAMAZ trucks, buses, and heavy-duty vehicles to transfer rotary motion between shafts at an angle.
Ensures smooth torque transmission despite misalignment in the drivetrain.
Agricultural Equipment
Used in tractors and other farm machinery, allowing flexible movement in power transmission systems.
Helps connect drive shafts in PTO (Power Take-Off) applications.
Industrial Machinery
Applied in conveyor systems and manufacturing equipment where shafts need to transfer motion at an angle.
Common in rotating machinery that requires flexibility in shaft connections.
Wear Symptoms
Vibrations
Low-speed vibrations: Could indicate U-joint wear in the propeller shaft (driveshaft).
High-speed vibrations (50+ km/h): Often means the U-joint is badly worn or unbalanced.
Steering wheel shaking? Could also point to driveshaft imbalance from a failing joint.
Clunking or Knocking Noises
When shifting gears (D/R): A “clunk” means excessive play in the U-joint.
When accelerating/decelerating: Indicates loose or damaged bearings inside the joint.
Constant rattling? The U-joint may be completely worn out and needs urgent replacement.
Grease Leakage
KAMAZ U-joints are greaseable (have a nipple for lubrication).
If grease is leaking, the seals are damaged, allowing dirt inside to accelerate wear.
No grease left? Metal-on-metal contact heat buildup & failure risk.

















