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| Brand Name : | SFT |
| Model Number : | HF0406 Needle bearings |
| Price : | 1-50USD/PC |
| Payment Terms : | T/T, Western Union, MoneyGram |
| Supply Ability : | 5000PCS |
| Delivery Time : | 45 days |

| Model | HF0406 |
| Internal Diameter Fw | 4 mm |
| Outside Diameter D | 8 mm |
| Width C | 6 mm |
| Outer Ring Material | ST14 |
| Retainer Material | PA66 |
| Needle Rolling Material | Gcr15 |
| Spring Plate Material | Stainless Steel |
A. Product Description:
Stamped outer ring needle roller clutch, commonly known as one-way bearing or one-way needle roller bearing, is a single directional bearing composed of a thin-walled outer ring, cage, spring plate, and needle roller that is stretched from an alloy sheet. It can be used as a converter, check device, and overrunning clutch, and is widely used in fitness equipment, cash counting machines, washing machines, fishing gear, toy cars, and other transmission parts that need to have a reverse stop function.
B. Main Features:
Unidirectional operation and reverse locking; High conversion frequency and accuracy.
C. Material And Treatment:
| Part | Project | Content |
| Outer ring | Material | Usually ST14/SPCC carbon steel (basically, special requirement 20 # steel) |
| Process | Forming by stamping with a punch or stretching with an hydraulic press | |
| Heat-treat | Carburization, high-frequency tempering, quenching | |
| Holder | Material | Reinforced nylon PA66, can withstand temperatures from -10 ℃ to+70 ℃. |
| Process | Injection molding machine injection molding | |
| Rolling needle | Material | GCr15 bearing steel |
| Process | Processed by grinding machine | |
| Heat-treat | Quenching, hardness can reach HRC60-64 | |
| Spring | Material | Resin or stainless steel |
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