Locking nut for bearings FINE U-NUT
Fuji Precision Co., Ltd.
About This Product
■Features
・Reusable
・Fine adjustment is possible at any position, and torque management is also easy.
・No need for toothed washer or shaft keyway machining
・Improved shaft/bearing rotational balance
・A hollow shaft with a thinner wall can be used than before.
・Achieved total cost reduction by eliminating the need for processing, parts, and technology that were previously required.
・Special tools from M10 to M100 are available.
■General name
Bearing nut Bearing nut Adapter nut Grooved round nut
■Supported markets
・Four wheels
・Special vehicles, construction machinery
・Agricultural equipment
・Transportation machine
・Railway
・Machine tools
・Industrial equipment
・Electrical equipment
・Medical care, welfare
・Play equipment
■Structure and action
When screwing the "FINE U-NUT" onto the shaft, the friction ring will come into contact with the shaft thread. As you tighten it further, the friction ring begins to flex along the thread, pressing down on the threaded surface of the shaft. Prevailing torque (friction torque) is generated by the force P generated by the elasticity of the friction ring and the force P' that pushes the male thread flank surface, and exerts a loosening prevention function.
■Comparison of FINE U-NUT and conventional products
・There are 3 basic parts.
・Simply insert and tighten.
・No toothed washer (chrysanthemum washer) required, no keyway machining required
■Steel friction ring
270° ring
■Thread accuracy
・JIS6H (JIS2 grade)
・Perpendicularity of end face (maximum) 0.05 (M8 to M50)
・Perpendicularity of end face (maximum) 0.07 (M55 to M120)
・Perpendicularity of end face (maximum) 0.10 (M125 to M150)
■Size
・M8~M100 (SS series)
・M10~M150 (SC series)
・M10~M100 (SUS series)
*Pitch: Fine thread
Shape: Grooved round nut *Other special shapes
■Material
SS400 or equivalent, S45C (thermal refining), SUS304 or equivalent
*Other product numbers are available.
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Product
Locking nut for bearings FINE U-NUT
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Handling Company
Fuji Precision Co., Ltd.
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Categories
10 Models of Locking nut for bearings FINE U-NUT
Items marked with have different values depending on the model number.
Click on the part number for more information about each product
| Product Image | Part Number | Price (excluding tax) | End face perpendicularity (maximum) | Extra length of male thread ℓmin mm | Groove depth (h1) approx. mm | Groove width (b) Standard dimension mm | Groove width (b) Tolerance mm | Groove width across flats (g) Standard dimension mm | Groove width across flats (g) Tolerance mm | Outer diameter (φd2) Standard dimension | Outer diameter (φd2) Tolerance mm | Overall height (h) Standard dimensions mm | Overall height (h) Tolerance mm | Seat diameter (φd1) Standard dimension mm | Seat diameter (φd1) Tolerance mm | Thread height (m) approx. mm | Thread nominal (d×p) mm | Unit weight (g) approx. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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FUNM8SS |
Available upon quote | 0.05 | 5.8 | 1.5 | 3 | ±0.2 | 13 | 0~0.5 | 16 | 0~0.5 | 5.3 | ±0.3 | 12 | 0~0.5 | 4.3 | M8×0.75 | 4.1 |
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FUN00SC |
Available upon quote | 0.05 | 5.5 | 1.8 | 3 | ±0.2 | 14.4 | 0~0.5 | 18 | 0~0.5 | 5.2 | ±0.3 | 13.5 | 0~0.5 | 4 | M10×0.75 | 4.5 |
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FUN00SS |
Available upon quote | 0.05 | 5.5 | 1.8 | 3 | ±0.2 | 14.4 | 0~0.5 | 18 | 0~0.5 | 5.2 | ±0.3 | 13.5 | 0~0.5 | 4 | M10×0.75 | 4.5 |
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FUN00SUS |
Available upon quote | 0.05 | 5.5 | 1.8 | 3 | ±0.2 | 14.4 | 0~0.5 | 18 | 0~0.5 | 5.2 | ±0.3 | 13.5 | 0~0.5 | 4 | M10×0.75 | 4.5 |
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FUN01SC |
Available upon quote | 0.05 | 6 | 1.8 | 3 | ±0.2 | 18.4 | 0~0.5 | Twenty two | 0~0.5 | 5.4 | ±0.3 | 17 | 0~0.5 | 4 | M12×1 | 8 |
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FUN01SS |
Available upon quote | 0.05 | 6 | 1.8 | 3 | ±0.2 | 18.4 | 0~0.5 | Twenty two | 0~0.5 | 5.4 | ±0.3 | 17 | 0~0.5 | 4 | M12×1 | 8 |
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FUN01SUS |
Available upon quote | 0.05 | 6 | 1.8 | 3 | ±0.2 | 18.4 | 0~0.5 | Twenty two | 0~0.5 | 5.4 | ±0.3 | 17 | 0~0.5 | 4 | M12×1 | 8 |
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FUN02SC |
Available upon quote | 0.05 | 7 | 1.8 | 4 | ±0.2 | 21.4 | 0~0.5 | Twenty five | 0~0.5 | 6.5 | ±0.5 | Twenty one | 0~0.5 | 5 | M15×1 | 12 |
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FUN02SS |
Available upon quote | 0.05 | 7 | 1.8 | 4 | ±0.2 | 21.4 | 0~0.5 | Twenty five | 0~0.5 | 6.5 | ±0.5 | Twenty one | 0~0.5 | 5 | M15×1 | 12 |
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FUN02SUS |
Available upon quote | 0.05 | 7 | 1.8 | 4 | ±0.2 | 21.4 | 0~0.5 | Twenty five | 0~0.5 | 6.5 | ±0.5 | Twenty one | 0~0.5 | 5 | M15×1 | 12 |
Click on the part number for more information about each product
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About Company Handling This Product
- Japan