Features
Spherical roller bearings are bearings with spherical rollers
assembled between an inner ring with two raceways and an outer ring
with spherical raceway. The bearings possess two rows of rollers,
mainly withstanding radial load, and at the same time withstanding
any of an axial load direction. With high radial load capacity, it
is especially suitable for working under heavy load or vibration
load. The bearing can also withstand the axial load in both
directions, but it cannot bear pure axial load. The outer ring
raceway of the spherical roller bearing is spherical, so its
self-aligning performance is good and it can compensate the
coaxiality error. Generally speaking, the allowable working speed
for spherical roller bearings is low.
C-type bearings: there are two steel stamping cages, two rows of
spherical roller between which there is an active retaining ring.
C-type is the design of second generation, characterized by the use
of steel stamping cage, reinforced symmetric rollers, its optimal
design with higher rated load than traditional products, wider
range of applications, and longer life. When the bearing bear the
axial load, it can adjust the load and speed of two rows of
rollers, which could balance the load, and avoid stress
concentration and single-row rollers be forced.
CA-type bearings: a cage and two rows of spherical roller. The CA
model is a second generation design which features of applying
precision machined brass cage and reinforced symmetrical rollers,
with the same rated load as the C type. It is designed for
universal use with the C-type design, especially for large sized
model. When the bearing is loaded axially, it can adjust the load
of two rows of rollers,so as to balance load, to avoid stress
concentration and single-row roller force.
MB-type: a spherical roller bering with fixed ribs on boths sides
of inner ring. There is a fixed centre rib and two cages in the
middle, spherical symmetry rollers. The centre rib cannot move
axially but guide roller well in operation. The load of two rows of
bearings cannot be adjusted when the bering is in axial load, it is
easy to be force by single row bearing or stress concentration.
Although there is a trend that C, CA-type bearing will replace this
structure, but it still has advantages in specific applications,
such as large vibration load application.
DCM can produce high quality SRB as the customer requests.We are
happy to produce further construction methods. Please do not
hesitate to contact us for special bearing characters.We can also
supply OEM service.
Product Specification
| Basic dimension | Basic rating load | Limited rotation speed | Weight | Bearing code |
| d | D | B | rmin | Cr | Cor | Grease | Oil | Wt |
|
| mm | mm | mm | mm | kN | kN | r/min | r/min | kg |
| 95 | 170 | 43 | 2.1 | 287 | 359 | 2900 | 3500 | 4.32 | 22219CA |
| 170 | 43 | 2.1 | 299 | 380 | 2900 | 3500 | 4.28 | 22219C |
| 170 | 43 | 2.1 | 287 | 359 | 2900 | 3500 | 4.29 | 22219MB |
| 200 | 45 | 3 | 369 | 444 | 2700 | 3200 | 7.09 | 21319CA |
| 200 | 45 | 3 | 370 | 488 | 2700 | 3200 | 7.27 | 21319C |
| 200 | 67 | 3 | 543 | 657 | 2300 | 2800 | 10.4 | 22319CA |
| 200 | 67 | 3 | 543 | 657 | 2300 | 2800 | 10.4 | 22319C |
| 200 | 67 | 3 | 570 | 710 | 2300 | 2800 | 10.4 | 22319CC |
| 200 | 67 | 3 | 543 | 657 | 2300 | 2800 | 10.4 | 22319MB |
Application
- Logistic Transport Facilities
- Automation Technology
- Machine Tools
- Aerospace Industry
- Mechanical Engineering
- Industrial Robots
- Textile Machinery
- Automotive Industry
- Construction Machinery
- Electric Motors
- Gearboxes
- Elevator
