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KOYO needle bearing needle roller bearings are bearings with cylindrical rollers; cylindrical rollers are comparable to their diameter; they are relatively slender. These rollers are called needle rollers. These bearings, despite the cross section, diarrhea, brain testosterone The ash is shallow and the J is smashed. /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
KOYO's needle bearing supplies are available in a wide range; in addition to custom-made drawings; the following types are also included:
- Needle roller and holder assembly - Drawn cup needle roller bearings with open or closed ends - Needle roller bearing with or without flange - with or without inner ring - Sealed needle roller bearing with inner ring and without Inner ring - Centering needle roller bearing with inner ring and without inner ring - Inner ring for needle roller bearing - Combination needle roller bearing (some separate) Needle roller bearing / angular touch ball bearing needle roller / thrust ball bearing needle roller / cylinder Roller Thrust Bearings - Needle Roller Bearings (Don't Leaving Some)
Needle bearings with carbon-chromium (bearing) rims have a low cross-section height and high load compared to their dimensions. These bearings can be used depending on the application; with or without inner rings.
Needle roller bearings without inner ring are a good choice for bearing equipment on hardenable and ground shafts. Since the inner ring is not required; the shaft demand is more consolidated. The axial displacement of the shaft relative to the bearing housing is only The constraint on the width of the on-axis raceway. The machining of the axle raceway reaches the proper scale and shape accuracy; it is possible to produce bearing equipment with improved working accuracy.
Needle roller bearings with inner ring are used for shaft bearings that cannot be hardened and ground or hardened and ground uneconomical. Bearings with inner ring only allow axial displacement of the shaft relative to the bearing housing within a certain scale If this is not enough, there is a way to widen the inner ring instead of the inner ring.
KOYO has several depictions; and produces needle bearings of various sizes. Most of these bearings have integral built-in outer ring flanges. Also include flangeless bearings and sealed bearings.
Needle Roller and Holder Assembly Needle Roller and Holder Assembly are quick-release, self-contained components for bearing equipment. These components provide high bearing capacity and rigidity for the resulting bearing assembly; if the shaft and housing bore are used as raceways and It has the same hardness and surface finish as the bearing ring; only the minimum radial space is required. If the accuracy of the raceway is improved, the bearing equipment with high running precision can be obtained.
KOYO needle roller and holder components can be supplied in single row and double row). The characteristic is that C is sketched and consolidated.
The C roller guides accurately in the bracket slot and the C function is outstanding.
The needle is slightly separated from the end. The improved line touch between the roller and the raceway that is reached means that the destructive marginal stress is prevented.
Other needle roller and holding frame components, drawn cup needle roller bearings, drawn cup needle roller bearings; Wang Wensheng; is a needle roller bearing with open end or closed end deep drawn thin-walled outer ring. It is characterized by low cross-section height; High. The bearing housing bore cannot be used as a raceway for the needle roller and the holder assembly; when it is required for a very compact and economical bearing assembly; these bearings are used. These bearings are pressed into the housing bore; and if the axial positioning is not Need a shoulder ring or a holding ring; the description of the bearing housing hole is very simple; and the production is very economical.
Drawn cup needle roller bearings with open or closed ends. Drawn cup needle bearings with closed ends are suitable for shaft end bearing equipment. The profile of the closed end also allows for a small axial guiding force.
Drawn cup needle roller bearings are generally used directly on the shaft. However, in the condition that the shaft can not be hardened and ground; the drawn cup needle roller bearing can be used in conjunction with the inner ring.
The hardened sheet metal stamped outer ring of these bearings and the needle roller and the holder assembly form a non-detachable component. The surface of the roller faces the roller end slightly apart. This gives the bearing a favorable load distribution. Smooth agent available for travel The gap is large; it is recommended to use a longer smooth interval.
Drawn cup needle roller bearings generally use a single row of rollers. However, relatively wide-scale bearings contain two needle roller and holder assemblies that are close together; smooth holes on the outer ring. Available on the outer ring as required; Any single row drawn cup needle roller bearings with a smooth bore for shaft diameters above 7 mm.
The centering needle roller bearing has an outer ring with a convex spherical surface. The plastic seat with a convex spherical inner surface embedded in the cold-drawn steel sleeve is placed on the outer ring; the bearing can be self-aligning. The centering needle bearing is insensitive to the error of the shaft relative to the bearing housing. These bearings are in the bearing housing bore with the interference cooperation device. The shoulder bearing or the retaining ring is not required to axially position the bearing; Processing is simple and economical.
Can be supplied with centering needle roller bearings without inner ring or inner ring. Bearings without inner ring can be hardened and ground under the condition of the shaft; the best solution for supplying bearing equipment. If this is not possible or uneconomical The bearing with inner ring should be used. The bearing with inner ring only allows axial displacement of the shaft relative to the bearing seat within a certain scale. If more axial displacement can occur, it can be used wider than the inner ring of the specification. Widen the inner ring; please see the section "Needle bearing inner ring". If the inner ring raceway is used as a seal against the bearing, the inner ring should also be widened.
All the centering needle bearings have a stable shape of the machined steel holder; there is plenty of free play to contain the smoothing agent. The needle is slightly separated at the end. The result is an improved line touch between the roller and the raceway; This means that the bearing stress spread is improved.
Needle bearing inner ring KOYO also supplies needle-bonded inner ring for needle roller bearings. In the application of needle roller and holder assembly and drawn outer ring needle roller bearing; however, it is impossible to harden and grind the shaft; that is, the raceway cannot be on the shaft Machining occasions; the use of loose cooperation inner ring is uniquely advantageous. In order to agree to the use of the standard width inner ring can not agree to the larger axial displacement of the shaft relative to the bearing seat; or in order to supply the conflict seal lip ring supply of ambition; In many cases it is advantageous to use a needle bearing in conjunction with a widened inner ring.
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KOYO needle bearing
Source: China Bearing Network Time: 2013-06-08