Model:29448 E
Structure:spherical roller
Type:roller bearing
Dimension:240x440x122mm
Inner Diameter:240mm
Outsider Diameter:440mm
Thickness:122mm
Material: GCr15 , GCr15SiMn , G20Cr2Ni4A
Brand Name: ZQM & OEM
Precision Rating:P0 P5 P6
Certificate: ISO9001:2008
Noise standard: Z1,Z2,Z3,Z4
pherical Roller Bearings 29448E
Product Featrues
Thrust Spherical roller bearings Spherical roller bearings same seat raceway bearing center axis point for the center of the spherical kind of bearing roller spherical, therefore, has a self-aligning feature concentricity and shaft deflection less sensitive.
Other thrust bearing different samples, such bearing axial load capacity is very large, but also bear certain axial load and radial load, radial load should not exceed 55% of the axial load.
As long as the load P and P0 does not exceed 0.05C0, and the rotation of the shaft washer, bearing Spherical angle to allow the table below.
200 Series bearing diameter series Spherical angle bearing diameter series Spherical angle 1 ° ~ 1.5 ° 300 series 1.5 ° to 2 ° 400 Series 2 ° ~ 3 ° small values apply to larger bearings, and load increases allowed Spherical angle will be reduced.
Generally use oil lubrication.
Thrust tapered roller bearings can only bear one-way axial load, can be the limit bearing one-way axial displacement, it can be used as a one-way axial positioning. Thrust cylindrical roller bearings compared to the carrying capacity, the relative sliding of small, but the lower speed limit.
Product Category
Symmetric thrust self-aligning roller bearings
Asymmetric thrust self-aligning roller bearings
Size range
Inner diameter range: 60mm ~ 1120mm
Diameter size range: 130mm ~ 1460mm
A high degree of size range: 39mm ~ 354 mm
Cage
The cage generally use solid brass frame and stamping frame. Solid brass cage, the cage after the code is not marked, post-code corresponding to the remaining signs.
Minimum axial load
Thrust Spherical roller bearings required minimum axial load,
Famin (take the larger value of the following two formulas calculated)
Famin = C0a/2000
Famin = 1.8Fr +1.33 (C0a/2000) 2 ×
Formula:
Famin: required minimum axial load kN
n: speed
C0a: basic static load kN
Fr: Radial load kN
Equivalent dynamic load
P = Fa +1.2 Fr
Equivalent static load
P0 = Fa +2.7 Fr
Use
These bearings are mainly used in oil drilling rigs, system iron steel mechanical, hydroelectric generators, vertical motors, marine propeller shaft, tower cranes, extruders, etc..