Tapered Roller Bearings
Lasting Bearing Group Co., Limited founded in 2008, is a company specializing in the manufacturing and sales of bearing transmission parts. Located in Hong Kong, and we have set up offices in some parts of the world, we are committed to providing our customers with high quality bearing products and high quality service.
Why Choose Us
Professional Team
We have a complete production line and an excellent R & D team, with independent development and design of various types of bearings, belts and grease strength. And we own our own brand, SDVV.
Quality Assurance
Our production line is located in Germany, equipped with the most advanced equipment and high technology production process, can ensure the consistency of product quality and reliability.
24H Online Service
We provide 24 hours online service, can let your doubts to solve in time. Fast and efficient service and to ensure customer satisfaction, so that you have no worries after sale.
Overview of Tapered Roller Bearings
Tapered roller bearings are rolling element bearings that can support axial forces (i.e., suitable thrust bearings) and radial forces.The inner and outer ring raceways are segments of cones, and the rollers are tapered so that the conical surfaces of the raceways, and the roller axes if projected, would all meet at a common point on the central axis of the bearing. This geometry makes the motion of the cones remain coaxial, with no sliding motion between the raceways and the outside diameter of the rollers.
We offer the following Product Specifications
|
Bearing No.* |
d(mm)* |
D(mm)* |
B(mm)* |
C(mm)* |
T(mm)* |
r1smin* |
r2smin* |
Dynamic(kgf)* |
Static(kgf)* |
RPM(Grease)* |
RPM(Oil)* |
Weight(kg)* |
|
30203 J |
17 |
40 |
12 |
11 |
13.25 |
1 |
1 |
20.7 |
21.9 |
9000 |
13000 |
0.079 |
|
30204 J |
20 |
47 |
14 |
12 |
15.25 |
1 |
1 |
28.2 |
30.6 |
8000 |
11000 |
0.126 |
|
30205 J |
25 |
52 |
15 |
13 |
16.25 |
1 |
1 |
32.2 |
37 |
7500 |
10000 |
0.154 |
|
30206 J |
30 |
62 |
16 |
14 |
17.25 |
1 |
1 |
43.3 |
50.5 |
6300 |
8500 |
0.231 |
|
30207 J |
35 |
72 |
17 |
15 |
18.25 |
1.5 |
1.5 |
54.2 |
63.5 |
5300 |
7000 |
0.331 |
|
30208 J |
40 |
80 |
18 |
16 |
19.75 |
1.5 |
1.5 |
63 |
74 |
4800 |
6300 |
0.422 |
|
30209 J |
45 |
85 |
19 |
16 |
20.75 |
1.5 |
1.5 |
67.9 |
83.6 |
4500 |
6000 |
0.474 |
|
30210 J |
50 |
90 |
20 |
17 |
21.75 |
1.5 |
1.5 |
73.3 |
92.1 |
4300 |
5600 |
0.529 |
|
30211 J |
55 |
100 |
21 |
18 |
22.75 |
2 |
1.5 |
90.8 |
113.7 |
3800 |
5000 |
0.713 |
|
30212 J |
60 |
110 |
22 |
19 |
23.75 |
2 |
1.5 |
103.3 |
130 |
3400 |
4500 |
0.904 |
|
30213 J |
65 |
120 |
23 |
20 |
24.75 |
2 |
1.5 |
120.6 |
152.6 |
3000 |
4000 |
1.13 |
|
30214 J |
70 |
125 |
24 |
21 |
26.25 |
2 |
1.5 |
132.3 |
173.6 |
3000 |
4000 |
1.26 |
|
30215 J |
75 |
130 |
25 |
22 |
27.25 |
2 |
1.5 |
138.4 |
185.4 |
2800 |
3800 |
1.36 |
|
30216 J |
80 |
140 |
26 |
22 |
28.25 |
2.5 |
2 |
160.4 |
212.8 |
2400 |
3400 |
1.67 |
|
30217 J |
85 |
150 |
28 |
24 |
30.5 |
2.5 |
2 |
177.6 |
236.8 |
2200 |
3200 |
2.06 |
|
30218 J |
90 |
160 |
30 |
26 |
32.5 |
2.5 |
2 |
200.1 |
269.6 |
2000 |
3000 |
2.54 |
|
30219 J |
95 |
170 |
32 |
27 |
34.5 |
3 |
2.5 |
226.6 |
309 |
1900 |
2800 |
3.04 |
|
30220 J |
100 |
180 |
34 |
29 |
37 |
3 |
2.5 |
253.9 |
350.3 |
1900 |
2800 |
3.72 |
A rigid bearing application can be achieved by combining two tapered roller bearings and applying a preload making these highly customisable.
Amps up performance, reduces friction as well as increases power density simultaneously in applications.
The raceways make for smooth operations in high speed operations leading to low friction, less noise and vibration.
It has tenacity to function even under difficult circumstances ensuring minimal downtime.
Manages heat well and works for a longer service time.
Low maintenance ensures that the resources are utilised for longer periods of time.
Cup and Cone- The cup includes the outer ring in which the bearings ride. The non-separable cone assembly consists of the inner ring, rollers, and cage. In the raceways where the rollers operate, there is an angle corresponding to the rollers' taper. The inner raceway is called a cone, while the outer raceway is called a cup. The cage, also known as a retainer, separates the rollers, ensuring even load distribution and smooth rotation.
Rollers (Axial And Radial Loads)-Tapered cylindrical rollers are used in these bearings. The contact angle and number of rows determine the load type and capacity of the bearing. The number of rollers on a bearing can increase its load-bearing capacity.
Cages
Different than the cages in other bearing types, the most common type of cage is the pin cage. As part of the inner core assembly, the cage helps distribute the roller units.
Lubrication
Helps reduce friction, noise, heat, etc., between rollers and raceways. Several lubricants are used, including synthetic oil, petroleum-based oil, silicone-based oil, greases, dry films, etc.
Seals
Effectively prevent the bearing from impeding by environmental contaminants and moisture. Impurities may affect the proper functioning of the bearing.
Automotive Wheel Bearings
Tapered Roller Bearings are widely used in automotive applications, especially in wheel hubs. They efficiently handle the radial load from the vehicle's weight and the axial load generated during turns and acceleration.
Gearboxes
In industrial machinery, gearboxes experience both radial and axial loads due to the gears transmitting power. excel in such environments, ensuring smooth operation and longevity.
Aerospace Applications
Aircraft components, such as landing gear assemblies, encounter complex loads during takeoff, landing, and in-flight. are chosen for their ability to withstand the diverse forces in these critical applications.
Construction Equipment
Heavy machinery, like excavators and loaders, often operates under substantial radial and axial loads. contribute to the robustness and reliability of these machines.
Tapered Roller Bearing Heat Treatments
Through-Hardened: Through-hardened heat treatment gives consistent hardness throughout the component.
Case-Hardened: Surface hardening combined with a tough, flexible core. Case-Hardened available upon special request only.
Although Through: Hardened bearings have gradually become the preference in heavy-duty commercial trucking applications, AST will supply both Through-Hardened and Case-Hardened Tapered Roller Bearings.
Packaging & Delivery
