hardened steel needle rollers,usually HAC58~62. Needle rollers are small cylindrical rollers with a length that is typically several times their diameter. They are often used in needle roller bearings, which are used to reduce friction and facilitate motion in various applications. Needle rollers are typically made from hardened steel or other high-strength materials, and are capable of supporting high loads while maintaining a small profile.
Grooved pins, on the other hand, are cylindrical pins with one or more grooves around their circumference. The grooves are designed to allow the pin to compress or flex slightly when it is inserted into a hole, providing a tight fit and holding the components in place. Grooved pins are typically made from materials such as steel or stainless steel, and come in a variety of diameters and lengths. They are often used in applications such as machinery, aerospace, and electronics, where a secure fit is required.
Needle rollers are small cylindrical rollers with a length that is typically several times their diameter. They are often used in needle roller bearings, which are used to reduce friction and facilitate motion in various applications. Needle rollers are typically made from hardened steel or other high-strength materials, and are capable of supporting high loads while maintaining a small profile.
we are professional manufacture of bearing rollers and cylindrical needle rollers. we produce rollers of diameter 0.5 mm to 60 mm. the rollers could satisfy the request of DIN 5402 G2 rollers.
diameter tolerance | +0/-0.005, +0/-0.003, +0/-0.002, grouping for 0.001mm or 0.0005mm | ||||||||
length tolerance | +/-0.015, +/-0.01, +0/-0.015, +/-0.005,+0/-0.005 | ||||||||
radius | R0.03-R0.3 | ||||||||
parallelism | 0.01, 0.005 | ||||||||
perpendicularity | 0.01, 0.005 | ||||||||
circularity | 0.001 | ||||||||
cylindricity | 0.001 | ||||||||
roughness | Ra0.1 | ||||||||
needle rollers, needle roller bearings, miniature pins, needle rollers suppliers, precision shafts |
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Dwexceed | Dwto | TSmin | diameter direction TSmin | axis direction TSmin | |||||
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- | 1 | 0.1 | 0.3 | 0.5 | |||||
1 | 1.5 | 0.1 | 0.4 | 0.6 | |||||
1.5 | 3 | 0.1 | 0.6 | 0.8 | |||||
3 | 6 | 0.1 | 0.9 | 1 | |||||
needle rollers, needle roller bearings, miniature pins, needle rollers suppliers, precision shafts |
angle | wave numbers | ||||||||||
3 | 5 | 7 | 9 | 11 | 13 | 15 | 17 | 19 | 21 | ||
90°C | 2 | 2 | - | - | 2 | 2 | - | - | 2 | 2 | |
120°C | 1 | 2 | 2 | 1 | - | - | 1 | 2 | 2 | ||
needle rollers, needle roller bearings, miniature pins, needle rollers suppliers, precision shafts |
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