Product Description
Self-aligning ball bearings have 2 rows of balls and a common sphered raceway in the outer ring. The bearings are insensitive to angular misalignment of the shaft relative to the housing.
Self-aligning ball bearings generate less friction than any other type of rolling bearing, which enables them to run cooler even at high speeds.
self-aligning ball bearings are available in several designs, including:
basic design bearings(1)
bearings with an extended inner ring(2)
sealed bearings (3 )
| Application examples : Long-shaped and flexible shafts, standard industrial applications, chemistry, agriculture… |
| Series : 120,130, 1200, 1300, 2200, 2300, 11200, 11300 |
Features
Our self-aligning ball bearings come with many beneficial features:
- Bearings are made with the double row design.
- Are available with cylindrical bore or tapered bore. (K)
- Bearings can be mounted with an adapter sleeve if the bearing has a tapered bore (K).
Product Specifications
- Standard options for self-aligning ball bearings are supplied as open bearings. Some sealed variations are available. (2RS)
- Many clearance options are available. (C0-C5)
- Standard bearing steel available is 52100 Chrome steel. Also available in 440 stainless steel.
- Cage options include: strip steel retainer, polyamide cage or brass cage.
- Bearings can be made with an extended inner ring.
应用程序
Self-aligning ball bearings can be used in a number of applications, including:
- Textile
- Mining
- Heavy machinery
- Power machinery
- Agricultural
- The next is some bearings technical data lists for your reference:
mm Dynamic Static rpm kg d D B rsmin Cr Cor Grease Oil ≈ 1200 series 1200 10 30 9 0.6 5.5 1.19 21,000 24,000 0.033 1201 12 32 10 0.6 5.6 1.27 18,000 22,000 0.04 1202 15 35 11 0.6 7.45 1.75 16,000 19,000 0.049 1203 17 40 12 0.6 7.9 2.01 14,000 17,000 0.072 1204 20 47 14 1 9.9 2.61 13,000 15,000 0.116 1204K 20 47 14 1 9.9 2.61 13,000 15,000 0.114 1205 25 52 15 1 12.1 3.3 11,000 13,000 0.138 1205K 25 52 15 1 12.1 3.3 11,000 13,000 0.135 1206 30 62 16 1 15.6 4.65 9,200 11,000 0.217 1206K 30 62 16 1 15.6 4.65 9,200 11,000 0.213 1207 35 72 17 1.1 15.8 5.1 8,000 9,400 0.317 1207K 35 72 17 1.1 15.8 5.1 8,000 9,400 0.312 1208 40 80 18 1.1 19.3 6.55 7,100 8,400 0.414 1208K 40 80 18 1.1 19.3 6.55 7,100 8,400 0.407 1209 45 85 19 1.1 21.9 7.35 6,400 7,500 0.457 1209K 45 85 19 1.1 21.9 7.35 6,400 7,500 0.448 1210 50 90 20 1.1 22.7 8.1 5,800 6,800 0.515 1210K 50 90 20 1.1 22.7 8.1 5,800 6,800 0.504 1211 55 100 21 1.5 26.8 10 5,300 6,200 0.692 1211K 55 100 21 1.5 26.8 10 5,300 6,200 0.679 1212 60 110 22 1.5 30 11.5 4,900 5,800 0.879 1212K 60 110 22 1.5 30 11.5 4,900 5,800 0.864 1213 65 120 23 1.5 31 12.5 4,500 5,300 1.13 1213K 65 120 23 1.5 31 12.5 4,500 5,300 1.11 1214 70 125 24 1.5 34.5 13.8 4,200 4,900 1.24 1215 75 130 25 1.5 39 15.7 3,900 4,600 1.33 1215K 75 130 25 1.5 39 15.7 3,900 4,600 1.31 1216 80 140 26 2 40 17 3,700 4,300 1.65 1216K 80 140 26 2 40 17 3,700 4,300 1.62 1217 85 150 28 2 49 20.8 3,500 4,100 2.06 1217K 85 150 28 2 49 20.8 3,500 4,100 2.03 1218 90 160 30 2 57 23.5 3,300 3,800 2.51 1218K 90 160 30 2 57 23.5 3,300 3,800 2.47 1219 95 170 32 2.1 64 27.1 3,100 3,600 3.1 1219K 95 170 32 2.1 64 27.1 3,100 3,600 3.05 1220 100 180 34 2.1 69 29.7 2,900 3,400 3.7 1220K 100 180 34 2.1 69 29.7 2,900 3,400 3.64 1221 105 190 36 2.1 74.5 32.5 2,800 3,300 4.34 1222 110 200 38 2.1 80.5 35.5 2,600 3,100 5.15 1222K 110 200 38 2.1 80.5 35.5 2,600 3,100 5.07 1300 series 1300 10 35 11 0.6 7.25 1.62 18,000 21,000 0.058 1301 12 37 12 1 9.45 2.16 16,000 18,000 0.066 1302 15 42 13 1 9.55 2.3 13,000 16,000 0.092 1303 17 47 14 1 12.5 3.2 12,000 14,000 0.128 1304 20 52 15 1.1 12.4 3.35 11,000 13,000 0.16 1304K 20 52 15 1.1 12.4 3.35 11,000 13,000 0.158 1305 25 62 17 1.1 18 5 9,100 11,000 0.255 1305K 25 62 17 1.1 18 5 9,100 11,000 0.251 1306 30 72 19 1.1 21.3 6.3 7,700 9,100 0.383 1306K 30 72 19 1.1 21.3 6.3 7,700 9,100 0.377 1307 35 80 21 1.5 25.1 7.85 6,800 8,000 0.5 1307K 35 80 21 1.5 25.1 7.85 6,800 8,000 0.492 1308 40 90 23 1.5 29.6 9.7 6,000 7,000 0.709 1308K 40 90 23 1.5 29.6 9.7 6,000 7,000 0.698 1309 45 100 25 1.5 38 12.7 5,400 6,300 0.953 1309K 45 100 25 1.5 38 12.7 5,400 6,300 0.938 1310 50 110 27 2 43.5 14.1 4,900 5,800 1.2 1310K 50 110 27 2 43.5 14.1 4,900 5,800 1.18 1311 55 120 29 2 51.5 17.9 4,500 5,200 1.58 1311K 55 120 29 2 51.5 17.9 4,500 5,200 1.56 1312 60 130 31 2.1 57 20.8 4,100 4,800 1.96 1312K 60 130 31 2.1 57 20.8 4,100 4,800 1.93 1313 65 140 33 2.1 62 22.9 3,800 4,500 2.42 1313K 65 140 33 2.1 62 22.9 3,800 4,500 2.38 1314 70 150 35 2.1 74.5 27.7 3,500 4,200 2.99 1315 75 160 37 2.1 79.5 30 3,300 3,900 3.55 1315K 75 160 37 2.1 79.5 30 3,300 3,900 3.5 1316 80 170 39 2.1 88.5 33 3,100 3,600 4.17 1316K 80 170 39 2.1 88.5 33 3,100 3,600 4.11 1317 85 180 41 3 97.5 38 2,900 3,400 4.96 1317K 85 180 41 3 97.5 38 2,900 3,400 4.89 1318 90 190 43 3 116 44.5 2,700 3,200 5.78 1318K 90 190 43 3 116 44.5 2,700 3,200 5.69 1319 95 200 45 3 132 51 2,600 3,000 6.69 1319K 95 200 45 3 132 51 2,600 3,000 6.59 1320 100 215 47 3 143 57.5 2,400 2,900 8.3 1320K 100 215 47 3 143 57.5 2,400 2,900 8.19 1321 105 225 49 3 156 64.5 2,300 2,700 10 1322 110 240 50 3 164 71.5 2,200 2,600 11.8 1322K 110 240 50 3 164 71.5 2,200 2,600 11.7 2200 series 2200 10 30 14 0.6 7.3 1.59 19,000 23,000 0.047 2201 12 32 14 0.6 7.6 1.73 17,000 20,000 0.051 2202 15 35 14 0.6 7.7 1.85 15,000 18,000 0.06 2203 17 40 16 0.6 9.8 2.41 13,000 16,000 0.088 2204 20 47 18 1 12.6 3.3 12,000 14,000 0.14 2204K 20 47 18 1 12.6 3.3 12,000 14,000 0.137 2205 25 52 18 1 12.3 3.45 10,000 12,000 0.157 2205K 25 52 18 1 12.3 3.45 10,000 12,000 0.153 2206 30 62 20 1 15.2 4.5 8,600 10,000 0.256 2206K 30 62 20 1 15.2 4.5 8,600 10,000 0.25 2207 35 72 23 1.1 21.5 6.6 7,500 8,800 0.392 2207K 35 72 23 1.1 21.5 6.6 7,500 8,800 0.382 2208 40 80 23 1.1 22.3 7.35 6,700 7,900 0.493 2208K 40 80 23 1.1 22.3 7.35 6,700 7,900 0.482 2209 45 85 23 1.1 23.2 8.15 6,000 7,100 0.54 2209K 45 85 23 1.1 23.2 8.15 6,000 7,100 0.528 2210 50 90 23 1.1 23.2 8.45 5,500 6,400 0.583 2210K 50 90 23 1.1 23.2 8.45 5,500 6,400 0.569 2211 55 100 25 1.5 26.5 9.9 5,000 5,800 0.787 2211K 55 100 25 1.5 26.5 9.9 5,000 5,800 0.769 2212 60 110 28 1.5 34 12.6 4,600 5,400 1.08 2212K 60 110 28 1.5 34 12.6 4,600 5,400 1.06 2213 65 120 31 1.5 43.5 16.4 4,200 5,000 1.44 2213K 65 120 31 1.5 43.5 16.4 4,200 5,000 1.41 2214 70 125 31 1.5 44 17.1 3,900 4,600 1.52 2215 75 130 31 1.5 44.5 17.8 3,700 4,300 1.58 2215K 75 130 31 1.5 44.5 17.8 3,700 4,300 1.54 2216 80 140 33 2 48.5 19.9 3,400 4,000 1.99 2216K 80 140 33 2 48.5 19.9 3,400 4,000 1.95 2217 85 150 36 2 58 23.6 3,200 3,800 2.54 2217K 85 150 36 2 58 23.6 3,200 3,800 2.49 2218 90 160 40 2 70 28.7 3,100 3,600 3.19 2218K 90 160 40 2 70 28.7 3,100 3,600 3.12 2219 95 170 43 2.1 83.5 34.5 2,900 3,400 3.89 2219K 95 170 43 2.1 83.5 34.5 2,900 3,400 3.8 2220 100 180 46 2.1 94 38.5 2,700 3,200 4.65 2220K 100 180 46 2.1 94 38.5 2,700 3,200 4.54 2221 105 190 50 2.1 109 45 2,600 3,100 6.07 2222 110 200 53 2.1 124 51.5 2,500 2,900 7.1 2222K 110 200 53 2.1 124 51.5 2,500 2,900 6.94 2300 series 2300 10 35 17 0.6 10.1 2.15 17,000 20,000 0.083 2301 12 37 17 1 11.8 2.71 15,000 17,000 0.091 2302 15 42 17 1 12 2.9 13,000 15,000 0.114 2303 17 47 19 1 14.4 3.55 11,000 14,000 0.156 2304 20 52 21 1.1 18.1 4.7 10,000 12,000 0.206 2304K 20 52 21 1.1 18.1 4.7 10,000 12,000 0.201 2305 25 62 24 1.1 24.4 6.6 8,500 10,000 0.334 2305K 25 62 24 1.1 24.4 6.6 8,500 10,000 0.326 2306 30 72 27 1.1 31.5 8.75 7,200 8,500 0.496 2306K 30 72 27 1.1 31.5 8.75 7,200 8,500 0.485 2307 35 80 31 1.5 39.5 11.3 6,300 7,400 0.671 2307K 35 80 31 1.5 39.5 11.3 6,300 7,400 0.653 2308 40 90 33 1.5 45 13.5 5,600 6,600 0.918 2308K 40 90 33 1.5 45 13.5 5,600 6,600 0.895 2309 45 100 36 1.5 54 16.7 5,000 5,900 1.23 2309K 45 100 36 1.5 54 16.7 5,000 5,900 1.2 2310 50 110 40 2 64.5 20.2 4,600 5,400 1.63 2310K 50 110 40 2 64.5 20.2 4,600 5,400 1.59 2311 55 120 43 2 75.5 24 4,200 4,900 2.1 2311K 55 120 43 2 75.5 24 4,200 4,900 2.05 2312 60 130 46 2.1 87 28.2 3,800 4,500 2.59 2312K 60 130 46 2.1 87 28.2 3,800 4,500 2.52 2313 65 140 48 2.1 96 32.5 3,600 4,200 3.2 2313K 65 140 48 2.1 96 32.5 3,600 4,200 3.12 2314 70 150 51 2.1 109 37.5 3,300 3,900 3.92 2315 75 160 55 2.1 123 43 3,100 3,600 4.78 2315K 75 160 55 2.1 123 43 3,100 3,600 4.66 2316 80 170 58 2.1 128 45 2,900 3,400 5.65 2316K 80 170 58 2.1 128 45 2,900 3,400 5.51 2317 85 180 60 3 140 51.5 2,700 3,200 6.55 2317K 85 180 60 3 140 51.5 2,700 3,200 6.39 2318 90 190 64 3 152 57.5 2,600 3,000 7.75 2318K 90 190 64 3 152 57.5 2,600 3,000 7.56 2319 95 200 67 3 165 64.5 2,400 2,800 9.05 2319K 95 200 67 3 165 64.5 2,400 2,800 8.83 2320 100 215 73 3 192 79 2,300 2,700 11.5 2320K 100 215 73 3 192 79 2,300 2,700 11.2 2321 105 225 77 3 205 87 2,200 2,600 13.2 2322 110 240 80 3 217 94.5 2,100 2,400 15.8 2322K 110 240 80 3 217 94.5 2,100 2,400 15.4
ZheJiang XSY Bearing Co.,Ltd. is a Professional and leading factory of thrust roller &ball bearings in China market,With m ore than 25 years experiences in producing, R&D and sales bearing lines.
The next is our brief intorduction,hope you can like it.
1.World quality, global share.
2.Since 1990.
3.Affordable, Durable, &Classical
4.OEM & ODM service are available.
5.Super Quality & Favorable price
XSY Bearing–Your trustworthy professional bearing expert!
Our factory shows:
Our Package:
*industrial pakage+outer carton+pallets
*sigle box+outer carton+pallets
*Tube package+middle box+outer carton+pallets
*According to your requirments
Transportation:
1.International Express
2.By air plant
3.International Seaborne shipping
4. International railway transportation
FAQ:
1.Could you please tell me the delivery time of your goods?
3-7days stock goods and other goods according to your quantity about 3-30 days
2.How about MOQ of your product?
our MOQ is 1 piece
3.Can you tell me the payment terms can be accepted of your company?
T/T,Western union,Paypal ,L/C
4.Can you accept OEM and customize?
Yes,we can customize for you according to your sample,blueprint or drawings with parameters
5.Can you supply door to door service?
Yes,by Express(DHL,FEDEX,TNT,EMS)it will take 3-7 das to your country
6.Can supply sample for free?
Yes,we can supply our clients with free sample,but you have to afford freight.
7.What certificate does your factory owned?
we have TUV and ISO9001:2008 certificate,we can do for you if you need other certificate.
8.Are you factory or trading company?
Factory+trading company
9.How long does your bearings guarantee for?
1 year,customers need to supply us with bearings’ pictures and sent the bearings back.
10.Can you tell me the material of your bearings?
Stainess steel,Gcr15(bearing steel),carbon steel,chrome steel,plastic,ceramic
11.Can you tell me the packing of your bearings?
single plastic bag+single paper box+single or wooden case+pallet
Thanks for your time! Should you have any needs or interest, please do not hesitate to contact us.
Yours,
Alisa Ching
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| Clearance: | C0-C5 |
|---|---|
| Standard Bearing Steel: | 52100 Chrome Steel and 440 Stainless Steel |
| Bore Types: | Cylindrical Bore or Tapered Bore |
| Samples: |
US$ 5/Piece
1 Piece(Min.Order) | Order Sample |
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| Customization: |
Available
| Customized Request |
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.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}
| Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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|---|---|
|
Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Can you describe the various types of seals and shields used with self-aligning bearings for contamination prevention?
Yes, here’s a detailed description of the various types of seals and shields used with self-aligning bearings for contamination prevention:
- Contact Seals:
Contact seals, also known as lip seals or radial seals, are commonly used with self-aligning bearings to prevent the ingress of contaminants. These seals feature a flexible lip that makes contact with the inner ring of the bearing, creating a barrier against dust, dirt, water, and other external substances. Contact seals provide effective contamination prevention but may introduce slightly higher friction due to the contact between the seal lip and the bearing surface. They are typically made of rubber or synthetic materials and offer good sealing performance in most operating conditions.
- Felt Seals:
Felt seals are simple and cost-effective sealing solutions used with self-aligning bearings. They consist of a felt material that is compressed against the bearing inner ring or housing to create a barrier against contaminants. Felt seals are commonly used in applications with low to moderate speeds and light contamination levels. While they offer basic protection against solid particles, they may not provide effective sealing against liquids or fine particles.
- Metallic Shields:
Metallic shields, also known as metal shields or non-contact shields, are used to protect self-aligning bearings from solid contaminants such as dust and dirt. These shields are typically made of steel or other metals and are designed to fit closely to the bearing inner ring without making contact. Metallic shields provide effective protection while minimizing friction and heat generation. They are suitable for high-speed applications where low torque and minimal drag are desired.
- Rubber Shields:
Rubber shields, also known as non-contact seals or labyrinth seals, consist of a rubber or elastomeric material that forms a barrier around the bearing without making direct contact. Rubber shields are designed with a labyrinth-like structure that uses multiple barriers to prevent the entry of contaminants. These shields provide effective sealing against both solid particles and liquids while still allowing for low-friction operation. Rubber shields are commonly used in applications where low torque, minimal drag, and enhanced contamination protection are required.
- Hybrid Seals:
Hybrid seals combine the advantages of different sealing technologies to provide optimal contamination prevention. These seals may incorporate a combination of contact seals, non-contact shields, or additional features such as flingers or slingers. Hybrid seals are designed to provide enhanced protection against a wide range of contaminants while minimizing friction and maintaining low torque. They are often used in demanding applications where a high level of sealing performance is required.
- Additional Features:
In addition to the primary seals and shields mentioned above, some self-aligning bearings may incorporate additional features to enhance contamination prevention. These features include flingers, which are rotating discs or rings that help to deflect contaminants away from the bearing; slingers, which are similar to flingers but operate by centrifugal force; and specialized coatings or surface treatments that provide enhanced resistance to corrosion or chemical attack.
It’s important to consult the bearing manufacturer’s specifications and guidelines to select the appropriate type of seal or shield for a specific self-aligning bearing and its operating conditions. By choosing the right sealing solution, engineers can effectively prevent contamination and prolong the service life of self-aligning bearings in various applications.

What is the impact of proper lubrication and maintenance on the performance and lifespan of self-aligning bearings?
Proper lubrication and maintenance have a significant impact on the performance and lifespan of self-aligning bearings. Here’s a detailed explanation of their importance:
- Lubrication:
Proper lubrication is crucial for self-aligning bearings as it provides a protective film between the rolling elements and raceways, reducing friction and wear. Here are the key impacts of proper lubrication:
- Reduced Friction and Wear: Adequate lubrication helps minimize friction and wear between the rolling elements and raceways. This reduces heat generation, prevents excessive wear, and extends the bearing’s lifespan.
- Optimized Load Distribution: Proper lubrication ensures that the load is distributed evenly across the bearing components. This helps prevent localized stresses and improves the overall load-carrying capacity of the bearing.
- Corrosion and Contamination Protection: Lubrication forms a protective barrier that helps prevent corrosion and protects the bearing against contaminants such as dust, dirt, and moisture. This enhances the bearing’s resistance to damage and maintains its performance in challenging environments.
- Noise and Vibration Reduction: Properly lubricated bearings exhibit reduced noise and vibration levels, contributing to smoother and quieter operation of the machinery.
- Maintenance:
Regular maintenance practices are essential for ensuring the optimal performance and lifespan of self-aligning bearings. Here are the key impacts of proper maintenance:
- Early Detection of Issues: Regular inspections and maintenance activities enable the early detection of potential problems such as misalignment, excessive wear, or lubrication issues. Timely identification of these issues allows for proactive measures to be taken, preventing further damage and minimizing downtime.
- Preservation of Alignment: Proper maintenance helps ensure the correct alignment of the bearing with its mating components. This is particularly important for self-aligning bearings, as misalignment beyond their specified limits can lead to decreased performance and premature failure.
- Lubrication Monitoring: Maintenance involves monitoring the lubrication condition, including oil or grease quality, contamination levels, and replenishment requirements. Regular lubrication checks and replenishment help maintain the optimal lubricating film and extend the bearing’s service life.
- Cleaning and Debris Removal: Maintenance activities include cleaning the bearing and its surrounding areas, removing accumulated debris, and ensuring proper sealing. This helps prevent contamination and ensures the smooth operation of the bearing.
- Replacement of Worn Components: Through maintenance, worn or damaged components can be identified and replaced, preventing further damage and maintaining the bearing’s performance. This can include replacing seals, cages, or damaged rolling elements.
Proper lubrication and maintenance practices are essential for maximizing the performance and lifespan of self-aligning bearings. They help reduce friction, prevent excessive wear, protect against corrosion and contaminants, preserve alignment, and enable early detection of potential issues. Adhering to manufacturer recommendations and industry best practices for lubrication and maintenance ensures the reliable and efficient operation of machinery and extends the service life of self-aligning bearings.

Can you describe the load-carrying capacity and load ratings of self-aligning bearings?
Self-aligning bearings are designed to carry both radial and axial loads, and their load-carrying capacity is an essential consideration for their proper selection and application. Here’s a detailed description of the load-carrying capacity and load ratings of self-aligning bearings:
- Radial Load Capacity:
The radial load capacity of a self-aligning bearing refers to its ability to carry loads that act perpendicular to the axis of rotation. It is influenced by factors such as bearing geometry, material properties, and internal design. Self-aligning bearings, particularly spherical roller bearings, are known for their high radial load-carrying capacity. This is due to their construction that includes multiple rows of robust rolling elements and optimized raceway profiles. The larger contact area between the rolling elements and raceways allows for efficient load distribution, enabling the bearing to handle substantial radial loads.
- Axial Load Capacity:
The axial load capacity of a self-aligning bearing refers to its ability to carry loads that act parallel to the axis of rotation. The axial load-carrying capacity depends on the bearing type and design, as well as the arrangement of rolling elements. Self-aligning thrust roller bearings, for example, are specifically designed to handle significant axial loads. They utilize cylindrical or tapered rolling elements arranged in a specific orientation to withstand axial forces. Self-aligning ball bearings can also carry moderate axial loads in addition to their primary radial load-carrying capacity.
- Dynamic Load Rating:
The dynamic load rating of a self-aligning bearing is a standardized value that indicates the maximum load that the bearing can sustain for a specified number of rotations or operating hours without experiencing premature fatigue failure. It is expressed in terms of the calculated dynamic equivalent radial or axial load, which takes into account the actual load distribution within the bearing. The dynamic load rating is typically provided by the manufacturer and allows engineers to compare and select bearings based on their expected performance under dynamic operating conditions.
- Static Load Rating:
The static load rating of a self-aligning bearing represents the maximum load that the bearing can sustain without permanent deformation or excessive stress when the bearing is stationary or subjected to very slow rotations. It is typically higher than the dynamic load rating. The static load rating is an important consideration for applications where the bearing may be subjected to prolonged static or slow-speed conditions, such as in machinery that operates with intermittent or intermittent rotational motion.
It is important to note that the load-carrying capacity and load ratings provided by manufacturers are based on standardized testing methods and assumptions about operating conditions. Actual load capacity can be influenced by factors such as temperature, lubrication, misalignment, and operating speed. Therefore, it is crucial to consider the specific application requirements and consult the manufacturer’s technical data and guidelines when selecting a self-aligning bearing to ensure its suitability and optimal performance.


editor by CX 2024-05-02