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Chopsticks bearing is the type of bearing used cylindrical roller (chopsticks) instead of a ball, for the ability to bear very large radial loads, suitable for continuous operation or heavy load equipment such as industrial gearboxes, lathe spindles, high power electric motors...
Depending on the structure and size of the roller, needle roller bearings are divided into two common types:
Cylindrical Roller Bearing
Needle Roller Bearing – small, long, thin roller
Highlights:
Withstands larger loads than ball bearings of the same size
Reduce friction, increase durability for shafts and bearings
Flexible mounting options (with inner/outer ring or without)
Dust cover options, with/without spacer, or fully open design
Suitable for medium - high rotation speed depending on type
Application:
Rolling mill shaft, heavy duty gear shaft
Industrial gearboxes, plastic injection machines, mechanical machines
Large engines, turbines, CNC machine spindles
Compressors, high capacity fans, steel industry equipment
| Parameter | Standard value |
|---|---|
| Bearing type | Cylindrical / Needle Roller |
| Structure | 1 row or 2 rows of chopsticks – with or without spacer |
| Material | Steel GCr15, Stainless steel SUS440, heat treated steel |
| Load bearing | High radial – low axial (some types can withstand small axial loads) |
| Rotation speed | Medium to high (depending on material and design) |
| Popular Sizes | Inner diameter: Ø10 – Ø200 mm |
| Suitable application | Presses, gearboxes, mechanical machines, heavy duty spindles |
| Standard | DIN 5412, ISO 15, JIS B1512 |
