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Double Row Self-Aligning Ball Bearings

Double row self-aligning ball bearings manufactured by BKZ Industry consist of two rows of balls, a common sphered raceway in the outer ring, and two raceway grooves in the inner ring. This design allows the bearing to automatically compensate for shaft misalignment and deflection.
The typical self-aligning capability is around 2° to 4°, depending on the bearing series and operating conditions. These bearings are mainly designed to support radial loads, while carrying light axial loads in both directions.
They help reduce stress caused by shaft deflection or mounting errors and ensure smooth and stable operation at moderate speeds.
With over 15 years of manufacturing experience, BKZ Industry produces a full range of double row self-aligning ball bearings, available in both open and sealed types, covering series such as 1200, 1300, 2200, and 2300.
Certified to ISO 9001:2015, we offer both standard and customized solutions to meet different application requirements.

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Double Row Self Aligning Ball Bearings With Two Rows Of Balls

Features & Advantages of BKZ Industry Double Row Self-Aligning Ball Bearings

Double row self-aligning ball bearings are designed to reduce premature failure caused by misalignment, reduce vibration and operating stress, and provide low friction. They simplify installation in applications where shaft and housing alignment is difficult to control, supported by professional engineering teams and manufacturing capabilities.

Features of Double Row Self-Aligning Ball Bearings

Carry High Radial Loads and Light Axial Loads

Two rows of balls with a common spherical outer raceway provide higher radial load capacity. The internal design allows the bearing to carry light axial loads in both directions.

Compensate for Angular Misalignment

The outer ring has a single spherical (concave) raceway, while the inner ring has two raceway grooves. This structure allows the bearing to compensate for angular misalignment.

Simplify Installation in Challenging Conditions

Self-aligning capability reduces the need for precise alignment between shaft and housing, making installation easier and more efficient.

Low Friction Operation

Ball rolling elements create point contact with raceways, resulting in lower friction and reduced wear compared to roller bearings.

Moderate to Relatively High Operating Speeds

Low friction, lightweight balls, and optimized internal geometry help reduce heat generation, allowing stable operation at moderate to relatively high speeds.

Advantages of BKZ Industry Double Row Self-Aligning Ball Bearings

Wide Range of Configuration Options

Designed for flexible application needs, these bearings are available with various cage materials (pressed steel, brass, polyamide), bore types (cylindrical or tapered), clearance options (C2, C3, C4), and sealing designs (open or sealed).

Wide Product Range & Customization

Custom solutions are available to meet specific working conditions, including high-temperature environments, dust or contamination exposure, and special lubrication or coating requirements.

Professional Engineering Support

With 50 + engineers who can check your applications and recommed the bearings for you based on their knowledge, offering CAD files, datasheets, and traceablility support, and after sale supports.

Reliable Quality Control

Strict quality control throughout material selection, heat treatment, machining, inspection, and packaging ensures consistent performance.

ISO 9001 and 15 Year Experience

With 15 year experience and ISO 9001 certification, BKZ Industry already offers the bearings for 1000+ customers. With 15+ production lines, We can produce the bearings you need to meet your deliovery requriements.

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Double Row Self Aligning Ball Bearing Types

Double row self-aligning ball bearings are available with cylindrical or tapered bores, in open or sealed designs, and are commonly classified into 1200, 1300, 2200, and 2300 series.

1200 Series Double Row Self Aligning Ball Bearings

1200 series

The 1200 series features a compact design with smaller cross-section dimensions, making it suitable for space-limited applications. It accommodates moderate misalignment (typically up to 2–3°) and is commonly used in light-duty machinery such as small conveyors, agricultural equipment, and electric motors.

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1300 Series Double Row Self Aligning Ball Bearings

1300 series

The 1300 series offers a wider inner ring and slightly higher load capacity compared to the 1200 series, while maintaining similar misalignment capability (around 2–3°). It is suitable for applications requiring improved shaft support, such as fans, pumps, and medium-duty transmission systems.

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2200 Series Double Row Self Aligning Ball Bearings

2200 series

The 2200 series is designed with a larger cross-section and higher load capacity, supporting greater radial loads and accommodating misalignment up to approximately 3°. It is widely used in industrial applications such as conveyors, textile machinery, and general equipment with heavier loads.

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2300 Series Double Row Self Aligning Ball Bearings

2300 series

The 2300 series features the largest cross-section and highest load capacity among these types, offering enhanced stability under heavy loads and misalignment (up to 3–4°). It is ideal for demanding applications such as mining equipment, crushers, and heavy-duty conveyors.

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*We also offer Double Row Self Aligning Ball Bearing not listed here. Contact us for more options.

Double Row Self Aligning Ball Bearing Size Chart

BKZ double row self-aligning ball bearings are available in 1200, 1300, 2200, and 2300 series. The following size chart provides standard dimensions for quick reference. For special requirements or project-based selection, contact us for tailored solutions and technical support.

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Bearing No. Bore Diameter d (mm) Outside Diameter D (mm) Bearing Width B (mm) Fillet Radius rs min (mm) Dynamic Load Rating C (kN) Static Load Rating C0 (kN) Speed for Grease Lubrication (rpm) Speed for Oil Lubrication (rpm) Weight (kg)
1200 10 30 9 0.6 3.7 1.6 20000 21000 0.035
2200 10 30 14 0.6 7.1 1.6 24000 28000 0.05
1300 10 35 11 0.6 7.2 1.6 20000 24000 0.06
1201 12 32 10 0.6 6.8 2 19000 21000 0.042
2201 12 32 14 0.6 8.1 1.7 22000 26000 0.059
1301 12 37 12 1 9.4 2.1 18000 22000 0.07
2301 12 37 17 1 12.5 2.7 17000 22000 0.104
1202 15 35 11 0.6 6.8 2 16000 20000 0.051
2202 15 35 14 0.6 8.5 1.8 16000 18000 0.06
1302 15 42 13 1 9.5 2.3 16000 20000 0.1
2302 15 42 17 1 12 2.9 14000 18000 0.143
1203 17 40 12 0.6 7.9 2 16000 20000 0.076
2203 17 40 16 0.6 10.5 2.4 14000 16000 0.09
1303 17 47 14 1 12.5 3.2 14000 17000 0.14
2303 17 47 19 1 14.5 3.6 13000 16000 0.176
1204 20 47 14 1 10 2.9 14000 17000 0.12
2204 20 47 18 1 11.5 2.8 13000 14000 0.15
1304 20 52 15 1.1 12.5 3.4 12000 15000 0.17
2304 20 52 21 1.1 20.5 5.5 12000 12000 0.22
1205 25 52 15 1 12 3.3 12000 14000 0.14
2205 25 52 18 1 12.5 3.4 12000 14000 0.163
1305 25 62 17 1.1 17.8 5.1 10000 13000 0.257
2305 25 62 24 1.1 26.5 6.5 10000 11000 0.355
1206 30 62 16 1 15.8 4.7 10000 12000 0.23
2206 30 62 20 1 15.2 4.6 10000 12000 0.26
1306 30 72 19 1.1 21.5 6.3 8500 11000 0.398
2306 30 72 27 1.1 31.5 8.7 8000 10000 0.52
1207 35 72 17 1.1 15.8 5.1 8500 10000 0.32
2207 35 72 23 1.1 21.8 6.7 8500 10000 0.44
1307 35 80 21 1.5 25 8 7500 9500 0.54
2307 35 80 31 1.5 39.2 11 7100 9000 0.68
1208 40 80 18 1.1 19.2 6.4 7500 9000 0.418
2208 40 80 23 1.1 22.5 7.4 7500 9000 0.51
1308 40 90 23 1.5 29.5 9.5 6700 8500 0.72
2308 40 90 33 1.5 44.8 13.2 6300 8000 0.962
1209 45 85 19 1.1 21.8 7.3 7100 8500 0.468
2209 45 85 23 1.1 23.2 8 7100 8500 0.547
1309 45 100 25 1.5 38 12.8 6300 7500 0.958
2309 45 100 36 1.5 55 16.2 5600 7100 1.277
1210 50 90 20 1.1 22.8 8.1 6300 8000 0.526
2210 50 90 23 1.1 23.2 8.5 6300 8000 0.599
1310 50 110 27 2 43.2 14.2 5600 6700 1.208
2310 50 110 40 2 64.5 19.8 5000 6300 1.689
1211 55 100 21 1.5 26.8 10 6000 7100 0.718
2211 55 100 25 1.5 26.8 10 6000 7100 0.81
1311 55 120 29 2 51.6 18.2 5000 6300 1.58
2311 55 120 43 2 75.2 23.5 4800 6000 2.094
1212 60 110 22 1.5 30.2 11.5 5300 6300 0.9
2212 60 110 28 1.5 34 12.5 5300 6300 1.096
1312 60 130 31 2 57.2 20.8 4500 5600 1.96
2312 60 130 46 2 86.8 27.5 4300 5300 2.61
1213 65 120 23 1.5 31 12.5 4800 6000 1.08
2213 65 120 31 1.5 43.5 16.2 4800 6000 1.467
1313 65 140 33 2.1 61.8 22.8 4300 5300 2.37
2313 65 140 48 2.1 96 32.5 3800 4800 3.22
1214 70 125 24 1.5 34.5 13.5 4600 5600 1.29
2214 70 125 31 1.5 44 17 4500 5600 1.62
1314 70 150 35 2.1 74.5 27.5 4000 5000 2.98
2314 70 150 51 2.1 110 37.5 3600 4500 3.92
1215 75 130 25 1.5 38.8 15.2 4300 5300 1.35
2215 75 130 31 1.5 44.2 18 4300 5300 1.72
1315 75 160 37 2.1 79 29.8 3800 4500 3.55
2315 75 160 55 2.1 122 42.8 3400 4300 4.71
1216 80 140 26 2 39.5 16.8 4000 5000 1.65
2216 80 140 33 2 48.8 20.2 4000 5000 2.19
1316 80 170 39 2.1 88.5 32.8 3600 4300 4.19
2316 80 170 58 2.1 128 45.5 3200 4000 5.7
1217 85 150 28 2 48.8 20.5 3800 4500 2.1
2217 85 150 36 2 58.2 23.5 3800 4500 2.53
1317 85 180 41 3 97.8 37.8 3400 4000 4.95
2317 85 180 60 3 134 48.8 3000 3800 6.73
1218 90 160 30 2 56.5 23.2 3600 4300 2.44
2218 90 160 40 2 70 28.5 3600 4300 3.22
1318 90 190 43 3 115 44.5 3200 3800 5.99
2318 90 190 64 3 142 57.2 2800 3600 8.27
1219 95 170 32 2.1 63.5 27 3400 4000 3.06
2219 95 170 43 2.1 82.8 33.8 3400 4000 4.2
1319 95 200 45 3 125 46 3000 3600 6.98
2319 95 200 67 3 162 68.8 2600 3400 9.56
1220 100 180 34 2.1 68.5 29.2 3200 3800 3.7
2220 100 180 46 2.1 97.2 40.5 3200 3800 4.61
1320 100 215 52 3 135 48 2800 3200 8.64
2320 100 215 73 3 192 78.5 2400 3200 12.4

Double Row Self Aligning Ball Bearings Applications

Double row self-aligning ball bearings are commonly used in industries where alignment deviations frequently occur during operation or installation. They are especially suitable for equipment requiring stable rotation under varying shaft conditions and easy installation.

FAQs About Double Row Self Aligning Ball Bearings

Q1. What Are The Differences Between Steel And Brass Cages for Double Row Self Aligning Ball Bearings?

Steel cages are cost-effective and suitable for standard applications with moderate loads and speeds. Brass cages offer better strength, higher temperature resistance, and improved durability under heavy or shock loads. They are often used in more demanding environments where stability and longer service life are required.

Yes, in most cases they are interchangeable because they follow ISO standard dimensions. However, factors like internal clearance, cage type, and precision class may vary slightly. It’s always recommended to confirm technical details by contacting us.

Yes, bearings with a tapered bore can be mounted on adapter sleeves. This allows easy installation on cylindrical shafts and simplifies mounting and dismounting. It’s a common solution in applications where precise shaft machining is difficult or frequent maintenance is required.

The main difference lies in their internal structure. Self-aligning ball bearings use two rows of balls with a common spherical outer raceway, resulting in point contact. In contrast, spherical roller bearings use barrel-shaped rollers, forming line contact with the raceways. This structural difference gives spherical roller bearings higher load capacity and better resistance to shock and misalignment.

The key difference lies in the internal structure. Deep groove ball bearings have a single-row design with deep raceways in both rings, while self-aligning ball bearings feature two rows of balls and a spherical outer raceway. This allows self-aligning bearings to accommodate misalignment, whereas deep groove bearings have very limited tolerance and require more precise alignment.

Common customization options include internal clearance, cage material, sealing type, lubrication, and special materials like stainless steel. Dimensions can also be modified for specific applications. Custom designs are typically based on load conditions, environment, and installation requirements. You can contact us for detailed information.

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Discover More Bearing Solutions from BKZ Industry

In addition to double row self-aligning ball bearings, BKZ Industry provides a broad portfolio of bearing types engineered for diverse operating environments. Browse our extended product range to identify solutions that match your performance, durability, and application requirements.

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