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Circular Linear Bearing SWF
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ISUTAMI BEARINGS

Circular Linear Bearing SWF

Circular Linear Bearing SWF
ISUTAMI SWF circular flange linear bearings, also known as SWF circular flange linear ball bearings or SWF circular flange linear bushing bearings. SW is the code name of the inch series for linear bearings, F is a shorthand for circular flange. It is applied in the markets of the UK and other British Commonwealth of Nations.

The bushing and steel ball of SWF circular flange linear bearing is made of high carbon bearing steel. The ball retainer is made of metal steel, stainless steel or POM material. The retaining ring (sealing ring), usually indicated by U or P, is composed of NBR material. The ball retainer is mounted inside the bushing together with the balls and sealed with a retaining ring from one side or both sides of the bushing.
Circular Linear Bearing SWF
ISUTAMI SWF circular flange linear bearings, also known as SWF circular flange linear ball bearings or SWF circular flange linear bushing bearings. SW is the code name of the inch series for linear bearings, F is a shorthand for circular flange. It is applied in the markets of the UK and other British Commonwealth of Nations.

The bushing and steel ball of SWF circular flange linear bearing is made of high carbon bearing steel. The ball retainer is made of metal steel, stainless steel or POM material. The retaining ring (sealing ring), usually indicated by U or P, is composed of NBR material. The ball retainer is mounted inside the bushing together with the balls and sealed with a retaining ring from one side or both sides of the bushing.

Circular Linear Bearing SWF Size Chart

Circular Linear Bearing SWF

Bearing No. Number
of Ball
Rows
Main Dimensions Squa-
Reness
Eccen-
(Max.)
Basic Load Rating Weight
(Kg)
Inscribed Circle Outer Diameter Length Flange Hole For Attachment Dynamic
C(kgf)
Static
Co(kgf)
dr Tolerance D Tolerance L Tolerance D1 K H Φ d1 d2 h
SWF04 3 1/4˝ 0
-0.009
0.5˝ 0
-0.011
1.375˝ 0
-0.2
1.25˝ 0.219˝ 0.875˝ 0.156˝ 0.25˝ 0.141˝ 0.012 0.012 21 27 0.030
6.35 12.7 34.925 31.75 25.4 5.556 22.225 3.969 6.35 3.572
SWF06 4 3/8˝ 0.625˝ 0
-0.013
1.5938˝ 1.5˝ 1.25˝ 0.25˝ 1.062˝ 0.1875˝ 0.297˝ 0.172˝ 23 32 0.037
9.525 15.875 40.481 38.1 31.75 6.35 26.988 4.763 7.541 4.366
SWF08 4 1/2˝ 0.875˝ 2.375˝ 1.75˝ 1.375˝ 0.25˝ 1.312˝ 0.1875˝ 0.297˝ 0.172˝ 52 80 0.800
12.7 22.225 60.325 44.45 34.925 6.35 33.338 4.763 7.541 4.366
SWF10 4 5/8˝ 1.125˝ 2.8125˝ 1.5˝ 0.25˝ 1.562˝ 0.1875˝ 0.297˝ 0.172˝ 79 120 0.127
15.875 28.575 71.438 50.8 38.1 6.35 39.688 4.763 7.541 4.366
SWF12 4 3/4˝ 0
-0.010
1.25˝ 0
-0.016
3.0937˝ 2.1875˝ 1.6875˝ 0.3125˝ 1.718˝ 0.2178˝ 0.344˝ 0.203˝ 0.015 0.015 88 140 0.173
19.05 31.75 78.581 55.563 42.863 7.938 43.66 5.556 8.731 5.159
SWF16 5 1.5625˝ 4.283˝ 0
-0.3
2.5˝ 0.3125˝ 2.031˝ 0.2187˝ 0.344˝ 0.203˝ 100 160 0.303
25.4 39.688 108.744 63.5 50.8 7.938 51.594 5.556 8.731 5.159
SWF20 5 1-1/4˝ 0
0.012
0
-0.019
3.125˝ 2.5˝ 0.375˝ 2.5625˝ 0.2812˝ 0.406˝ 0.2656˝ 0.020 0.020 160 280 0.585
31.75 50.8 127 79.375 63.5 9.525 65.088 7.144 0.319 6.747
SWF24 6 1-1/2˝ 2.375˝ 5.6875˝ 3.75˝ 0.5˝ 3.0625˝ 0.344˝ 0.5˝ 0.328˝ 222 410 0.992
38.1 60.325 144.463 95.25 76.2 12.7 77.788 8.731 12.7 8.334
SWF32 6 0
-0.022
7.75˝ 4.375˝ 3.5˝ 0.5˝ 3.6875˝ 0.344˝ 0.5˝ 0.328˝ 0.025 0.025 390 810 1.705

Circular Linear Bearing SWF Features

The outer bushing surface of SWF circular flange linear ball bearing is completely seamless and has no external retaining groove. There is an annular flange at one end of the bushing, and four circular connecting holes are evenly distributed in the flange for secure the entire bearing. The number of ball rows of SWF inch series supplied by ISUTAMI varies according to the bearing size, and ranges from 4 to 6. Among them, SWF16 steel retainer ball row number is 5 columns, engineering plastic retainer ball row number is 6 columns; inner diameter (dr) range and tolerance, outer diameter (D) range and tolerance, length (L) range and tolerance, maximum radial eccentricity, basic dynamic load rating (C) range, basic static load (Co) range and other data are consistent with SWK square flange linear bearings, SW standard linear bearings and SW-AJ adjustment linear bearings.

In addition, the diameter of flange side ranges 1.25''-4.375''; the height of the flange is 0.219''-0.5''. With flange, the weight is larger than the SW standard linear bearing.

The SWF circular flange type linear bearing has a flange with a fixed bearing as a whole, and the corresponding components make the axial positioning simple. It does not need to be fixed in the matching bearing housing like normal linear bearings, thus becomes very economical, also reduces the overall weight of the assembly.

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