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Xiamen Smark Bearing Co., Ltd

Tel: +86-592-6780643/ 5975776/ 5975807/ 5975817/ 5908751/ 5908761

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Email: gjpbearings@aliyun.com

Add: NO.52 to 58, Fanghu West Road, Xiamen, China

Three Bolt Flange Bracket Bearing UCFB205-16

Three Bolt Flange Bracket Bearing UCFB205-16

Three Bolt Flange Bracket Bearing UCFB205-16, with cast iron housing FB205 and inch size chrome steel UC205-16, three bolt shape, set screw locking, heavy duty. UCFB205-16 has a wide range of applications, mainly used in transmission devices, construction machinery, vibrating screens, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electric power, motors, fans, railways and other industries.

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Product Details

GJP 3 Bolt Flange Bearing UCFB205-16,with cast iron housing FB205 and inch size chrome steel UC205-16, three bolt shape,set screw locking, heavy duty.

GJP as an experienced 3 bolt flange bearing exporter, our 3 bolt flange bearing unit is a non-standard deep groove ball bearing unit, which is normally combined with a spherical bearing and a cast iron seat to form a seated bearing or bearing unit. The radial and approximate axial loads are mostly carried by the outer spherical ball bearing.

The seated bearing’s outer ring surface is spherical, making it simple to place in the pillow block bearing seat. This feature allows it to self-align, making it suited for agricultural machinery, construction machinery, mining machinery, construction machinery (cement mixer), textile manufacturing machinery, and other heavy machinery that do not require high bearing accuracy or assembly flexibility.

Gray cast iron, ductile iron, cast steel, stainless steel 304, and plastic are common materials for bearing seats with seated bearings. Everything is dependent on the environment in which the plug-in bearing or pillow block unit will be used.

Outer spherical ball bearings offer the advantages of easy installation and a noticeable self-aligning effect as compared to typical deep groove ball bearings.

Although its fundamental performance should be similar to deep groove ball bearings, because these bearings are mainly used in rougher machinery, the installation and positioning are not accurate enough, the shaft axis and the seat hole are poorly aligned, or the shaft is lengthy and deflection is a problem.

Because the bearing’s precision isn’t good enough for large-scale bearings, and certain structures are rough, the real performance of a deep groove ball bearing with the same specification will be discounted. In a through shaft with a considerable stiffness differential and large deflection, for example, an outer spherical ball bearing with top wire is employed. Seal rings on both sides of this bearing prevent water from getting in. The proper amount of oil has been filled at the manufacturer and does not require cleaning prior to installation. When the jack screw on the bearing inner ring’s projecting end is tightened on the shaft, no lubrication is required. The axial load that can be applied must not exceed 20% of the dynamic load.

Precision 3 bolt flange bearing requirements:

Since the precision of the precision 3 bolt flange bearing itself is within 1μm, the matching parts (shaft, bearing seat, end cover, retaining ring, etc.) are required to have high dimensional accuracy and shape accuracy, especially the accuracy of the mating surface should be controlled within the bearings within the same level, this is crucial and easily overlooked.

It must also be noted that if the matching parts of the 3 bolt flange bearing do not meet the above requirements, the precision bearing will have an error several times larger than the original bearing error after installation, or even more than 10 times. The reason is that the error of the matching parts is often not simply superimposed on the bearing error, but added after being amplified by different multiples.

How to mate with precision 3 bolt flange bearing

In order to ensure that the bearing does not have excessive deformation after installation, it must be done:

  • The roundness of the shaft and the seat hole and the verticality of the shoulder should be required according to the corresponding accuracy of the 3 bolt flange bearing.
  • Calculate not only the interference fit of the rotating ferrule, but also the proper fit of the fixed ferrule.
  • If the 3 bolt flange bearing runs at high speed and the working temperature is high, special attention should be paid to the fit of the rotating ferrule not too loose to prevent eccentric vibration.
  • The condition for a small interference fit for the fixed ring is that both sides of the mating surface have high shape accuracy and small roughness, otherwise it will be difficult to install and disassemble. In addition, the influence of thermal elongation of the spindle needs to be considered.
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    GJP Unit No. Shaft Dia. Dimensions(mm) Bolt Size Bearing No. Housing No. Mass(kg)
    d H0 L H1 P H j J A A1 A2 N E S
    (in.) (mm)
    UCFB202 15 104 55 50 49 40 27 30 23.5 10 14 10 29.9 11.5 M8 UC202 FB203 0.42
    UCFB203-10 5/8 104 55 50 49 40 27 30 23.5 10 14 10 29.9 11.8 M8 UC202-10 FB203 0.41
    UCFB203 17 104 55 50 49 40 27 30 23.5 10 14 10 29.9 11.5 M8 UC203 FB203 0.41
    UCFB203-11 11/16 104 55 50 49 40 27 30 23.5 10 14 10 29.9 11.5 M8 UC203-11 FB203 0.41
    UCFB204-12 3/4 109 60 52 52 42 27 32 25.5 11 15 10 33.3 12.7 M8 UC204-12 FB204 0.62
    UCFB204 20 109 62 52 52 42 27 32 25.5 11 15 10 33.3 12.7 M8 UC204 FB204 0.62
    UCFB205-14 7/8 116 68 52 56 45 27 34 27 13 16 10 35.7 14.3 M8 UC205-14 FB205 0.69
    UCFB205-15 15/16 116 68 52 56 45 27 34 27 13 16 10 35.7 14.3 M8 UC205-15 FB205 0.69
    UCFB205 25 116 68 52 56 45 27 34 27 13 16 10 35.7 14.3 M8 UC205 FB205 0.69
    UCFB205-16 1 116 68 52 56 45 27 34 27 13 16 10 35.7 14.3 M8 UC205-16 FB205 0.69
    UCFB206-18 1 1/8 132 80 55 65 50 29 40 31 13 18 10 40.2 15.9 M8 UC206-18 FB206 0.93
    UCFB206 30 132 80 55 65 50 29 40 31 13 18 10 40.2 15.9 M8 UC206 FB206 0.93
    UCFB206-19 1 1/2 132 80 55 65 50 29 40 31 13 18 10 40.2 15.9 M8 UC206-19 FB206 0.93
    UCFB206-20 1 1/4 132 80 55 65 50 29 40 31 13 18 10 40.2 15.9 M8 UC206-20 FB206 0.93
    UCFB207-20 1 1/4 144 90 62 70 55 32 46 33 14 19 10 44.4 17.5 M8 UC207-20 FB207 1.3
    UCFB207-21 1 5/16 144 90 62 70 55 32 46 33 14 19 10 44.4 17.5 M8 UC207-21 FB207 1.3
    UCFB207-22 1 3/8 144 90 62 70 55 32 46 33 14 19 10 44.4 17.5 M8 UC207-22 FB207 1.3
    UCFB207 35 144 90 62 70 55 32 46 33 14 19 10 44.4 17.5 M8 UC207 FB207 1.3
    UCFB207-23 1 7/16 144 90 62 70 55 32 46 33 14 19 10 44.4 17.5 M8 UC207-23 FB207 1.3
    UCFB208-24 1 1/2 164 100 72 78 60 41 50 35 17 21 12 51.2 19 M10 UC208-24 FB208 1.8
    UCFB208-25 1 9/16 164 100 72 78 60 41 50 35 17 21 12 51.2 19 M10 UC208-24 FB08 1.8
    UCFB208 40 164 100 72 78 60 41 50 35 17 21 12 51.2 19 M10 UC208 FB208 1.8
    UCFB209-26 1 5/8 175 108 76 80 65 43 54 38 16 22 12 52.2 19 M10 UC209-26 FB209 2
    UCFB209-27 1 11/16 175 108 76 80 65 43 54 38 16 22 12 52.2 19 M10 UC209-27 FB209 2
    UCFB209-28 1 3/4 175 108 76 80 65 43 54 38 16 22 12 52.2 19 M10 UC209-28 FB209 2
    UCFB209 45 175 108 76 80 65 43 54 38 16 22 12 52.2 19 M10 M209 FB209 2
    UCFB210-30 1 7/8 184 114 82 86 68 46 58 39 16 22 12 54.6 19 M10 UC210-30 FB210 2.3
    UCFB210-31 1 15/16 184 114 82 86 68 46 58 39 16 22 12 54.6 19 M10 UC210-31 FB210 2.3
    UCFB210 50 184 114 82 86 68 46 58 39 16 22 12 54.6 19 M10 UC210 FB210 2.3