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
85 mm x 180 mm x 41 mm KOYO 21317RH Rolamentos esféricos de rolamentos	3.15 Inch \| 80 Milli	0.25	1	124 mm
200 mm x 310 mm x 82 mm KOYO 23040RHA Rolamentos esféricos de rolamentos	40 mm	DF08A15LLU/5C	40	21 mm
300 mm x 420 mm x 90 mm KOYO 23960R Rolamentos esféricos de rolamentos	B04336	NTN	170 mm	N/A
1400 mm x 1820 mm x 315 mm KOYO 239/1400R Rolamentos esféricos de rolamentos	159,987	Timken	1400 mm x 1820 mm x 315 mm	107,95
1000 mm x 1320 mm x 236 mm KOYO 239/1000R Rolamentos esféricos de rolamentos	1000 mm x 1320 mm x 236 mm	ISB	150 mm	200
180 mm x 300 mm x 96 mm KOYO 23136RHAK Rolamentos esféricos de rolamentos	0.9	32934	32934	0.36
340 mm x 520 mm x 180 mm KOYO 24068R Rolamentos esféricos de rolamentos	32 mm	21 mm	140 mm	167 mm
1120 mm x 1580 mm x 345 mm KOYO 230/1120R Rolamentos esféricos de rolamentos	31 mm	60	130	31
280 mm x 380 mm x 75 mm KOYO 23956R Rolamentos esféricos de rolamentos	40	DAC40800302	30,2 mm	80
530 mm x 710 mm x 136 mm KOYO 239/530R Rolamentos esféricos de rolamentos	FYM 1.11/16 TF	5.98	0 Inch \| 0 Millimete	42,863 mm
200 mm x 360 mm x 98 mm KOYO 22240R Rolamentos esféricos de rolamentos	2,1 mm	80 mm	397,4	370,5 mm
90 mm x 160 mm x 40 mm KOYO 22218RHR Rolamentos esféricos de rolamentos	7	7 mm	3	0,129 kN