Suppressing bearing looseness in harsh automotive environments!
In the automotive industry, bearings are required to have reliability and durability under harsh conditions such as vibrations, shocks, rapid acceleration, and sudden stops. Loosening of bearings can lead to abnormal noises and premature wear of components, potentially resulting in serious accidents. FINE U-NUT offers high anti-loosening performance to address these challenges. 【Usage Scenarios】 - Areas subject to vibrations and shocks, such as the engine, transmission, and suspension of vehicles - Harsh operating environments involving high-speed driving and repeated rapid starts and stops - Prevention of bearing loosening due to prolonged use 【Benefits of Implementation】 - Reduction of failure risks due to bearing loosening - Cost savings from reduced frequency of parts replacement - Increased customer satisfaction due to improved product reliability
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basic information
**Features** - Reusable - Easy fastening: No skilled techniques required - Labor-saving simplification: No need for keyway machining on the shaft, simplified installation work - Balance: Improved rotational balance of the shaft and bearings - Lightweight: Use of thinner-walled hollow shafts compared to conventional ones **Our Strengths** Fuji Precision, as a comprehensive manufacturer of lock nuts, provides products that best meet customer needs based on years of research, development, and achievements. With a domestic market share of 50% for U-nuts and a variety of product lineups, we contribute to solving customer challenges.
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Applications/Examples of results
【Delivery Examples】 ■ Semiconductor Automatic Sealing Device ■ Ball Screw ■ Food Machinery ■ NC Rotary Table ■ Pump ■ NAS Type High-Speed Screw Loosening Tester ■ Spindle ■ Small Forming Parts Extraction Robot ■ Cold Press Machine ■ Drill Machine for Shaped Steel
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CAD data（64）
| Model number | overview | File |
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| FUN_SS | IGS data |
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| FUN_SC | IGS data |
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| FUN_SUS | IGS data |
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| FUN_SS | sldpr data |
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| FUN_SC | sldpr data |
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| FUN_SUS | sldpr data |
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| Small U_SUS | IGS data |
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| Small U_SUS | sldprt data |
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| Small U_SS | IGS data |
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| Small U_SS | sldprt data |
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| Small U_SC | IGS data |
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| Small U_SC | sldprt data |
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| Seat with metal base_SUS | IGS data |
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| Seat with metal base_SUS | sldprt data |
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| Seat cushion with payment_SS | IGS data |
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| Seat cushion with attachment_SS | sldprt data |
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| UNC_SUS | IGS data |
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| UNC_SUS | sldprt data |
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| UNC_SS | IGS data |
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| UNC_SS | sldprt data |
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| UNC_SC | IGS data |
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| UNC_SC | sldprt data |
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| FLANGE_SUS | IGS data |
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| FLANGE_SUS | sldprt data |
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| FLANGE_SS | IGS data |
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| FLANGE_SS | sldprt data |
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| FLANGE_SC | IGS data |
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| FLANGE_SC | sldprt data |
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| CAP_SUS | IGS data |
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| CAP_SUS | sldprt data |
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| CAP_SS | IGS data |
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| CAP_SS | sldprt data |
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| WELD_SS | IGS data |
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| WELD_SS | sldprt data |
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| WU_SUS | IGS data |
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| WU_SUS | sldprt data |
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| WU_SS | IGS data |
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| WU_SS | sldprt data |
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| WU_SC | IGS data |
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| WU_SC | sldprt data |
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| U_3 types_SUS | IGS data |
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| U_3 types_SUS | sldprt data |
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| U_3 types_SS | IGS data |
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| U_3 types_SS | sldprt data |
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| U_3 types_SC | IGS data |
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| U_3 types_SC | sldprt data |
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| U_SUS | sldprt data |
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| U_SUS | IGS data |
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| U_SS | sldprt data |
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| U_SS | IGS data |
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| U_SC | sldprt data |
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| U_SC | IGS data |
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| CU_SUS | sldprt data |
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| CU_SUS | IGS data |
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| CU_SS_Molten Zinc Coating | sldprt data |
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| CU_SS_Molten Zinc Coating | IGS data |
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| TFU_SC | IGS data |
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| TFU_SC | sldprt data |
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| SU_SUS | sldprt data |
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| SU_SUS | IGS data |
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| GU_SS | sldprt data |
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| GU_SS | IGS data |
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| BLU_SUS | sldprt data |
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| BLU_SUS | IGS data |
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Company information
Since our establishment in 1962, Fuji Precision has focused exclusively on the research and development of locking nuts, growing into a comprehensive manufacturer of locking nuts. The 'U-Nut' brand was the first in the industry to introduce the "metal ring locking function" to bolts and nuts, which were traditionally considered prone to loosening. This groundbreaking product received a significant response upon its release and has now grown to capture a 50% share of the domestic market, becoming synonymous with locking nuts. Although bolts and nuts may be considered small parts, they play a crucial role in connecting functions and technologies. They can be described as cross-point technology that combines cutting-edge technologies and opens up new technological fields. Fuji Precision regards this theme as an eternal proposition and has been committed to product development that anticipates the needs of the times, while pursuing high quality and high added value in our products. Our future goal is to become the world's number one comprehensive manufacturer of locking nuts. We will continue to strive to create products that meet your trust and contribute to the industrial sector and society.
![[Technical Information] About the Principle of Loosening: Basic Edition](https://image.mono.ipros.com/public/product/image/4d2/2000560043/IPROS54724764275627571407.png?w=280&h=280)