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Home > High temperature bearing units > high temperature Koyo M-681 Needle Roller Bearing, Drawn Cup, Closed End, Open, Inch, 3/8" ID,
high temperature Koyo M-681 Needle Roller Bearing, Drawn Cup, Closed End, Open, Inch, 3/8" ID,

high temperature Koyo M-681 Needle Roller Bearing, Drawn Cup, Closed End, Open, Inch, 3/8" ID,

high temperature Koyo M-681 Needle Roller Bearing, Drawn Cup, Closed End, Open, Inch, 3/8" ID, are designed to deliver increased reliability, reduced complexity and decreased environmental impact in operating temperatures up to 350 °C (660 °F). Because SKF high temperature bearings correspond to the ISO dimensions of grease-lubricated bearings, production efficiencies and cost savings can be realized with a simple change to the SKF bearing solution. high temperature Koyo M-681 Needle Roller Bearing, Drawn Cup, Closed End, Open, Inch, 3/8" ID, offers a wide range of high temperature bearings and units according to ISO standards and also a range of…
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Product description

high temperature Koyo M-681 Needle Roller Bearing, Drawn Cup, Closed End, Open, Inch, 3/8" ID, are designed to deliver increased reliability, reduced complexity and decreased environmental impact in operating temperatures up to 350 °C (660 °F). Because SKF high temperature bearings correspond to the ISO dimensions of grease-lubricated bearings, production efficiencies and cost savings can be realized with a simple change to the SKF bearing solution. high temperature Koyo M-681 Needle Roller Bearing, Drawn Cup, Closed End, Open, Inch, 3/8" ID, offers a wide range of high temperature bearings and units according to ISO standards and also a range of customized high temperature bearings. Selection of an appropriate high temperature bearing is based on the bearing type and the operating conditions (primarily the temperature and speed) of the machinery.

Except for  high temperature Koyo M-681 Needle Roller Bearing, Drawn Cup, Closed End, Open, Inch, 3/8" ID,, SKF Y-bearings (insert bearings) for high temperatures correspond in design to standard Y-bearings with grub screws in the YAR 2-2F series. The bearings have a shield and a flinger on both sides to prevent the ingress of solid contaminants into the bearing. The radial internal clearance is a multiple of C5 to prevent the bearings from seizing, even when they cool rapidly.
The entire surface of the bearing and the shields and flingers are manganese phosphated to enhance adhesion of the lubricant to the metal, thus improving the running-in properties of the bearing.
The SKF core assortment of high temperature bearings and bearing units corresponding to ISO standards includes:
6201-2Z/VA201 6201-2Z/VA228 6202-2Z/VA228 6202-2Z/VA201 6203-2Z/VA228 6303-2Z/VA228 6003-2Z/VA208 6003-2Z/VA201 6203-2Z/VA201 6004-2Z/VA208 6004-2Z/VA201 6204-2Z/VA228 6304-2Z/VA228 6304-2Z/VA208 6204-2Z/VA201 6304-2Z/VA201 6305-2Z/VA208 6005-2Z/VA208 6005-2Z/VA201 6305-2Z/VA201 6205-2Z/VA228 6305-2Z/VA228 6205-2Z/VA201 6205-2Z/VA208 6206-2Z/VA208 6306-2Z/VA228 6006-2Z/VA208 6206-2Z/VA201 6206-2Z/VA228 6306-2Z/VA208
6207-2Z/VA228 6207-2Z/VA208 6207-2Z/VA201 6307-2Z/VA208 6308-2Z/VA201 6308-2Z/VA208 6208-2Z/VA228 6308-2Z/VA228 6208-2Z/VA208 6008-2Z/VA208 6208-2Z/VA201 6209-2Z/VA201 6209-2Z/VA208 6209-2Z/VA228 6309-2Z/VA208 6010-2Z/VA208 6210-2Z/VA201 6210-2Z/VA208  6310-2Z/VA228 6310-2Z/VA208
 high temperature Koyo M-681 Needle Roller Bearing, Drawn Cup, Closed End, Open, Inch, 3/8" ID, operating temperature up to 350 °C (660 °F) – the internal radial clearance and the lubricant are optimized for operation at high temperatures
simple mounting and dismounting – the grub (set) screws in the inner ring make mounting/dismounting easy
protection against contamination – shields and flingers (designation suffix 2F) protect the bearing 
 high temperature Koyo M-681 Needle Roller Bearing, Drawn Cup, Closed End, Open, Inch, 3/8" ID, provide:
excellent performance in hot conditions, dry environments and low rotational speed applications
Typical areas where  high temperature Koyo M-681 Needle Roller Bearing, Drawn Cup, Closed End, Open, Inch, 3/8" ID, are used include:
 metals industry (cooling beds for steel plate)  food and beverage industry (continuous baking ovens, wafer baking ovens) paint lines

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  Item Description

This Koyo full complement drawn cup needle roller bearing has a closed end and is suitable for shaft end applications with high dynamic loads. It has a smaller cross-section than a machined needle roller bearing for use in restricted mounting spaces. The full complement of needle rollers provides a higher radial load capacity than caged rollers. The rollers are made of through-hardened, high-carbon chromium steel for durability and heat tolerance. This drawn cup needle roller bearing meets American National Standards Institute/American Bearing Manufacturers Association ANSI/ABMA 18.2 and ASTM International standard ASTM F2162 for quality assurance, and is used in various applications, such as automotive and truck transmissions, agricultural and construction equipment, pumps and compressors, and two-cycle engines, among others.

Roller bearings use rolling elements to maintain a separation between moving parts to reduce rotational friction and support radial and axial loads. These elements can be one of the following types: ball, cylindrical, spherical, barrel, needle, spindle, or tapered. Roller bearings can be open on both ends (a shaft can pass through) or open on one end and closed on the other. An open end can be sealed or shielded to protect the bearing from solid contaminants and moisture that could reduce its lifespan. If an end is sealed, the sealing component is an elastomer lip that contacts the shaft. If it is shielded, the shielding is a non-contact lip, usually made of metal. Rolling bearings are used in a range of applications from agricultural machinery to conveying equipment, robotics, dental equipment, elevators, rolling mills, ship rudder shafts, and aggregate crushers, among others.

Koyo Bearings USA manufactures needle roller bearings, bearing assemblies, and needle rollers for automotive and industrial applications. The company, founded in 2009, is headquartered in Canton, OH, and meets International Organization for Standardization (ISO) standards 14001 and TS 16949 for quality assurance.

Main Features

    Drawn cup needle roller bearing with a closed end for shaft end applications with high dynamic loads
    Drawn steel outer shell (cup) has a reduced cross-section for use in restricted spaces
    Full complement of rollers for greater load capacity than caged bearings
    Through-hardened, high-carbon chromium steel rollers for heat tolerance and durability under heavy loads
    Meets standards ANSI/ABMA 18.2 and ASTM F2162 for quality assurance

Specifications

    Manufacturer: Koyo Torrington
    Shipping Weight: 5
    Product Dimensions:
    Width: 2.20
    Length: 2.30
    Height: 1.00

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