KOYO Rolamentos esféricos de rolamentos

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Spherical roller bearings are available as double-row, combination radial and thrust bearings. They use a spherical or crowned roller as the rolling element. The race in the outer ring is spherical in shape, which allows for some misalignment of the shaft and the housing. Spherical roller bearings are unequalled in their capacity for high loads and their tolerance to shock loads, but have limited speed capabilities. They perform consistently, even under extreme conditions, such as application-specific stress and marginal lubrication. The cage of a spherical roller bearing provides high dimensional accuracy and functionality. According to some estimates, spherical roller bearings have twice the running life of conventional bearings.

Most spherical roller bearings are made of alloy steels or low-carbon steels. Chrome-plated products are also available. Some applications require the use of case-hardened or through-hardened, high-carbon, bearing-quality steel. High-carbon grades of steel do not require carburizing and can be case-hardened by induction heating or through-hardened by conventional heating methods. When low-carbon, carburized grades of steel are used, carbon is introduced after the spherical roller bearings are machined to a depth sufficient to produce a hardened case that can sustain bearing loads. The addition of carbon and alloys ensures the proper combination of a hard, fatigue-resistant case and a tough, ductile core.

Bore size and outside diameter (OD) are important specifications to consider when selecting spherical roller bearings. The bore size is the bearing's smallest dimension. The outer diameter includes the bearing housing, but excludes the flange. Other important specifications for spherical roller bearings include overall width, rated speed (oil), static axial load, static radial load, dynamic axial load, and dynamic radial load. Static axial and static radial loads are, respectively, the maximum axial and radial loads that bearings can withstand without permanent deformation. Dynamic axial and dynamic radial loads are, respectively, the calculated axial and radial loads under which a group of identical bearings with stationary outer rings can endure for a rating life of 1 million revolutions of the inner ring.

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Bearing Number	Bore Dia	Outer DIa	Width	Size
200 mm x 420 mm x 138 mm KOYO 22340RHAK Rolamentos esféricos de rolamentos	CX	24000 r/min	13	16
420 mm x 620 mm x 200 mm KOYO 24084R Rolamentos esféricos de rolamentos	83	45 mm	83 mm	45
400 mm x 600 mm x 200 mm KOYO 24080RK30 Rolamentos esféricos de rolamentos	Timken	104 mm	146 mm	90
380 mm x 520 mm x 106 mm KOYO 23976R Rolamentos esféricos de rolamentos	0.3 mm	380 mm x 520 mm x 106 mm	KBC	0.032 Kg
750 mm x 1090 mm x 250 mm KOYO 230/750RHA Rolamentos esféricos de rolamentos	125 kN	1 Kg	B04311	55 mm
1060 mm x 1400 mm x 250 mm KOYO 239/1060RK Rolamentos esféricos de rolamentos	3,3 Kg	2.1 mm	0.0	http://www.ntnameric
170 mm x 310 mm x 86 mm KOYO 22234RK Rolamentos esféricos de rolamentos	80 mm	480 mm	260 mm	80
750 mm x 1220 mm x 365 mm KOYO 231/750R Rolamentos esféricos de rolamentos	SNR	71920HVDUJ74	100 mm	750 mm x 1220 mm x 365 mm
320 mm x 540 mm x 176 mm KOYO 23164RHAK Rolamentos esféricos de rolamentos	59 mm	129 mm	32	129
220 mm x 340 mm x 118 mm KOYO 24044RHA Rolamentos esféricos de rolamentos	110 mm	214 kN	220 mm x 340 mm x 118 mm	NSK
100 mm x 180 mm x 60,3 mm KOYO 23220RH Rolamentos esféricos de rolamentos	100 mm x 180 mm x 60,3 mm	135,23 mm	6018-Z-NR	90
380 mm x 620 mm x 194 mm KOYO 23176RHAK Rolamentos esféricos de rolamentos	355,6 mm	T1421	101,6	533,4 mm