KOYO Roller Bearing 17887 17831 17887 Tapered Roller Bearing
22/05/2023Bearing HM801346 HM801322 HM801346 KOYO Taper Roller Bearing
22/05/2023
What is a taper roller bearing used for?
Tapered Roller Bearings are designed to reduce friction and, in turn, reduce the heat that can cause bearing structures to fail. This bearing is used in many industrial applications and is optimal for those undergoing excess loads.
Tapered roller bearings contain an inner ring, outer ring, and a number of tapered rollers. Looked at individually, the inner and outer bearing rings are also tapered, resembling a cone segment. Due to the large surface area contact, tapered roller bearings are able to withstand heavy axial and radial loads.
The most common material for ball bearing, roller bearing, and tapered roller bearing is chrome SAE 52100 bearing steel. This bearing can be made by high carbon content of 1.5% and has Rockwell hardness of about 64 HRC.
tapered roller bearings are typically used in gearboxes, hoisting equipment, rolling mills and machines in the mining industry. Four row tapered roller bearings are used almost exclusively in work roll applications such as rolling mills.
Single-row tapered roller bearing
A single-row tapered bearing is usually adequate for the most straightforward applications (e.g., angular forces on a fixed point and with only mild fluctuation). To find the right one, you'll need to determine whether the end-use of the tapered bearing will have more radial or axial loads. There are axial-only tapered roller bearings called thrust tapered bearings that resemble flat rings or disks where the rollers are perpendicular to the bearing bore axis. When multiple bearings are required, it could be advantageous to use two- or more single-row tapered bearings rather than multi-row bearings within a single housing. One such example is if one bearing will need to be maintained, adjusted, or replaced separately from the other. Another is when there is a need to allow for flexibility in design and add or subtract individual single-row tapered bearings, which is impossible with a multi-row tapered bearing.
| 30200 series |
| Model |
d mm |
D mm |
H mm |
W kg |
| 30202 |
15 |
35 |
12 |
0.043 |
| 30203 |
17 |
40 |
13.5 |
0.053 |
| 30204 |
20 |
47 |
15.5 |
0.126 |
| 30205 |
25 |
52 |
16.5 |
0.154 |
| 30206 |
30 |
62 |
17.5 |
0.231 |
| 30207 |
35 |
72 |
17 |
0.331 |
| 30208 |
40 |
80 |
20 |
0.422 |
| 30209 |
45 |
85 |
21 |
0.474 |
| 30210 |
50 |
90 |
22 |
0.529 |
