Audited Supplier
30209
Roller Bearings
Single
Small (28-55mm)
Bearing Steel
Aligning Bearings
Axial Bearing
Separated
S K F
Wooden/Cardboard Boxes
45*85*20.75
China
8482200000
Product Description
Single row tapered roller bearings are designed to withstand combined radial and axial loads, with low friction during operation. The inner ring component with rollers and cages can be installed separately from the outer ring. This separable and interchangeable bearing is easy to install, disassemble, and maintain. Installing a single row tapered roller bearing against another bearing can obtain preload and achieve the application of rigid bearings.
The advantages of single row tapered roller bearings are:
-High axial and radial bearing capacity
-Can withstand unidirectional axial load
-Low friction
-Long service life
-Detachable and interchangeable components
| Model | Basic Dimensions | Basic Dynamic load rating | Rated Speed | ||||
| Inner Diameter | Outer Diameter | Width | Trends | static state | Reference speed | Limiting Speeds | |
| d[mm] | D[mm] | T[mm] | C[kN] | C0[kN] | [r/min] | [r/min] | |
| 30202 | 15 | 35 | 11.75 | 18.5 | 14.6 | 17 000 | 20 000 |
| 30203 | 17 | 40 | 13.25 | 23.4 | 18.6 | 15 000 | 18 000 |
| 30204 | 20 | 47 | 15.25 | 34.1 | 28 | 12 000 | 15 000 |
| 30205 | 25 | 52 | 16.25 | 38.1 | 33.5 | 11 000 | 13 000 |
| 30206 | 30 | 62 | 17.25 | 50 | 44 | 9 000 | 11 000 |
| 30207 | 35 | 72 | 18.25 | 63.2 | 56 | 8 000 | 9 500 |
| 30208 | 40 | 80 | 19.75 | 75.8 | 68 | 7 000 | 8 500 |
| 30208 R | 40 | 80 | 19.75 | 75.8 | 68 | 7 000 | 8 500 |
| 30209 | 45 | 85 | 20.75 | 81.6 | 76.5 | 6 300 | 8 000 |
| 33020 | 100 | 150 | 39 | 278 | 390 | 3 400 | 4 000 |
Basic knowledge of bearings
Why choose rolling bearings?
Rolling bearings support and guide the rotation or oscillation of machine components - such as axles, axles, or wheels - with minimal friction and transmit loads between machine components. Rolling bearings have high precision and low friction performance, thus achieving high rotational speeds while reducing noise, heat, energy consumption, and wear. This type of bearing is cost-effective and is a typical interchangeable machine component that meets national or international dimensional standards.
Ball and roller bearings
Distinguish the two basic types of rolling bearings using the two basic types of rolling elements:
* Ball → Ball bearing
* Roller → Roller bearing
The difference between a ball and a roller is the way it contacts the raceway.
The ball makes point contact with the bearing ring raceway. As the load acting on the bearing increases, the contact point becomes an elliptical area. If the contact area is small, the rolling friction is also small, which allows the ball bearing to adapt to high-speed operation, but limits its load-bearing capacity.
The roller and bearing ring raceway make line contact. As the load on the bearing increases, the contact line becomes a rectangle. Due to the larger contact area and the resulting friction, roller bearings can withstand heavier loads but lower speeds compared to ball bearings of the same size.
Radial and thrust bearings
Rolling bearings are divided into two categories based on the main load direction they bear:
* Radial bearing
Radial bearings can withstand loads perpendicular to the shaft. Some radial bearings can only withstand pure radial loads, while most radial bearings can also withstand axial loads in one direction, and in some cases, they can also withstand axial loads in both directions.
* Radial bearing
Radial bearings can withstand loads perpendicular to the shaft. Some radial bearings can only withstand pure radial loads, while most radial bearings can also withstand axial loads in one direction, and in some cases, they can also withstand axial loads in both directions.
* Thrust bearing
The thrust bearing mainly bears loads along the axial direction. According to the design, thrust bearings can support unidirectional or bidirectional pure axial loads, but some can additionally withstand radial loads. Thrust bearings cannot achieve speeds as high as radial bearings of the same size.
The contact angle determines which category the bearing belongs to. Bearings with a contact angle ≤ 45 ° are radial bearings, while others are thrust bearings.
FAQ
1.What is the minimum order quantity for this product?
Can be negotiated, we will try our best to meet customer needs.Our company is mainly based on wholesale sales, most customers'orders are more than Over 200 sets.
2.What is your latest delivery time?
Most orders will be shipped within 3-5 days of payment being received.
3.Does your company have quality assurance?
Yes, for 1 years.
4.Are you a factory or a trading company?
We have our own cooperative factory, and our business type is a combination of manufacturing and trading.
5.What is the competitiveness of your company's products compared to other companies?
High precision, high speed, low noise.
6.What are the advantages of your company's services compared to other companies?
Answer questions online 24 hours a day, reply in a timely manner, 100% after-sales service.
7.Which payment method does your company support?
Do our best to meet customer needs, Can be negotiated.
8.How to contact us quickly?
Please send us an inquiry or message and leave your other contact information, we will contact you as soon as possible and provide the detailed information you need.
Can be negotiated, we will try our best to meet customer needs.Our company is mainly based on wholesale sales, most customers'orders are more than Over 200 sets.
2.What is your latest delivery time?
Most orders will be shipped within 3-5 days of payment being received.
3.Does your company have quality assurance?
Yes, for 1 years.
4.Are you a factory or a trading company?
We have our own cooperative factory, and our business type is a combination of manufacturing and trading.
5.What is the competitiveness of your company's products compared to other companies?
High precision, high speed, low noise.
6.What are the advantages of your company's services compared to other companies?
Answer questions online 24 hours a day, reply in a timely manner, 100% after-sales service.
7.Which payment method does your company support?
Do our best to meet customer needs, Can be negotiated.
8.How to contact us quickly?
Please send us an inquiry or message and leave your other contact information, we will contact you as soon as possible and provide the detailed information you need.
Production site and product display
