Self Aligning Ball Bearing:1208

Product Name: Self Aligning Ball Bearing:1208
Type: Ball Bearing Brand : FODA
New Model: 1208 Old Model: 1208
Inner Diameter (mm): 40 Outer Diameter (mm): 80
Thickness (mm): 18 Weight (kg/pc): 0.415

Description

Basic Parameters

In bearing 1208, “1”: Indicates that the bearing type is a self-aligning ball bearing. Characterized by a spherical outer ring raceway and two rows of balls, this bearing can automatically compensate for shaft misalignment or angular deflection (up to 2–3 degrees), making it suitable for applications where precise alignment is difficult to maintain. It primarily handles radial loads and moderate bidirectional axial loads. “2”: Represents the diameter series code, which defines the relative proportions of the bearing’s inner and outer diameters. The 2 series signifies a light series, meaning the bearing offers a balanced combination of compact size and adequate load-carrying capacity for its 40mm inner diameter. “08”: Denotes the inner diameter code. Using the standard calculation (inner diameter = code × 5), the actual inner diameter of the 1208 bearing is 08 × 5 = 40mm.

Product Application

1. Industrial Motors & Generators
In medium-sized electric motors (e.g., 3-phase induction motors, gear motors) and generators, the 1208 bearing compensates for misalignments caused by thermal expansion, flexible couplings, or uneven mounting. Its spherical outer ring and dual-row ball design reduce stress from shaft deflection, minimizing vibration and noise in high-speed operations. Ideal for applications with radial loads from rotating armatures and moderate axial loads from belt-driven pulleys or gear reducers, ensuring extended motor life in industrial pumps, fans, and compressors.
2. Pumps & Fluid Handling Systems
For centrifugal pumps, sewage pumps, or hydraulic systems, where shafts may bend under fluid pressure or cavitation forces, the 1208 bearing’s self-aligning feature mitigates premature wear from misalignment. It efficiently handles radial loads from impeller rotation and bidirectional axial loads from fluid thrust, maintaining stable operation in wet, corrosive, or particle-laden environments. Its compact light series design (outer diameter 80mm, width 18mm) fits into space-constrained pump casings while resisting misalignment up to 2–3 degrees.
3. Conveyor & Material Handling Equipment
In roller conveyors, chain drives, or bulk material handling systems (e.g., in mining, food processing, or logistics), the 1208 bearing excels in supporting rollers or idlers subjected to off-center loads or frame flexure. Its self-aligning capability accommodates misalignment from uneven installation or heavy payloads, reducing friction and energy loss. The grade 0 precision ensures consistent rotational accuracy for conveyor belts requiring steady motion, while the robust design withstands dusty, high-vibration conditions with minimal maintenance.
4. Agricultural Machinery
In tractors, combines, harvesters, or irrigation systems, exposed to dirt, moisture, and dynamic loads, the 1208 bearing is ideal for gearboxes, PTO shafts, and pivot points. It handles radial loads from agricultural implements (e.g., plows, balers) and moderate axial loads from misaligned drive chains or belts, resisting contamination and wear in harsh field conditions. The self-aligning feature compensates for shaft movement due to uneven terrain, ensuring reliable performance in critical agricultural applications.
5. Heavy-Duty Industrial Equipment
For machinery with moderate load requirements and space limitations, such as woodworking lathes, textile machine spindles, or printing presses, the 1208 bearing offers a balance of compactness and load capacity. It mitigates misalignment from worn mounts or flexible drive components, reducing stress on adjacent parts and extending service intervals. The standard precision grade (grade 0) meets most industrial accuracy needs, making it a cost-effective choice for non-critical high-speed applications.

Product List 

Bearing No. Dimensions (mm) Basic Load Rating (N)      Weight (kg)
ISO GOST d D B Dyn. C Stat. C0
1200 1200 10 30 9 5480 1200 0.034
1201 1201 12 32 10 5550 1250 0.04
1202 1202 15 35 11 7480 1750 0.049
1203 1203 17 40 12 7900 2020 0.073
1204 1204 20 47 14 9950 2650 0.116
1205 1205 25 52 15 12000 3300 0.14
1206 1206 30 62 16 15800 4700 0.22
1207 1207 35 72 17 15800 5080 0.32
1208 1208 40 80 18 19200 6400 0.415
1209 1209 45 85 19 21800 7320 0.465
1210 1210 50 90 20 22800 8080 0.531
1211 1211 55 100 21 26800 10000 0.705
1212 1212 60 110 22 30200 11500 0.9
1213 1213 65 120 23 31000 12500 1.15
1214 1214 70 125 24 34500 13500 1.24
1215 1215 75 130 25 38800 15200 1.39
1216 1216 80 140 26 39500 16800 1.7
1217 1217 85 150 28 48800 20500 2.06
1218 1218 90 160 30 56500 23200 2.59
1219 1219 95 170 32 63500 27000 3.1
1220 1220 100 180 34 67400 28400 3.7
1224 1224 120 215 42 117000 51000 6.77

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