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    Products   Thomson Linear Motion   Precision Steel Ball Bushing Bearings, Closed Type, Inch

Precision Steel Ball Bushing™ Bearings - INCH

(Closed Type) For Continuing-Supported Applications


  • Specs
  • Drawing
Thomson Super Ball Bushing Bearings
*Not Normally Recommended
**P=Preload, C=Clearance
ΔSee chart on bottom of this page.

NOTE:
Part number is for a standard item.
Other options available: With Integral Wipers (Nom. Dia. .500 thru 1.500), Nylon Balls, Dry-Packed or Stainless Steel (up to 1.000 only).

Thomson Precision Steel Ball Bushing Bearings


Catalog Number Nom.
Dia.
Length
C
Distance Between
Ret.
Grooves
C1
Ret. Ring
Groove Min.
C2
No.
of Ball
Circ.
D Working Bore
Dia.
T
Recommending Housing
Bore
Normal Fit
Recommending Housing
Bore
Press Fit
Precision Steel Ball
Bushing
Bearing/LinearRace
Fit Up**
Precision Steel
Ball Bushing
Bearing Mass
lb
DynamicΔ
Load
Capacity
lbf
TA-4812 .250 .750/.735 .515/.499 .039 3 .5000/.4996 .2500/.2495 .5005/.5000 .4995/.4990 .0015C/.0005C .02 19
TA-61014 .375 .875/.860 .640/.624 .039 4 .6250/.6246 .3750/.3745 .6255/.6250 .6245/.6240 .0015C/.0005C .06 37
TA-81420 .500 1.250/1.235 .967/.951 .046 4 .8750/.8746 .5000/.4995 .8755/.8750 .8745/.8740 .0015C/.0005C .08 85
TA-101824 .625 1.500/1.485 1.108/1.092 .056 4 1.1250/1.1246 .6250/.6245 1.1255/1.1250 1.1245/1.1240 .0015C/.0005C .16 150
TA-122026 .750 1.625/1.610 1.170/1.154 .056 5 1.2500/1.2496 .7500/.7495 1.2505/1.2500 1.2495/1.2490 .0015C/.0005C .21 200
TA-162536 1.000 2.250/2.235 1.759/1.741 .068 5 1.5625/1.5621 1.0000/.9995 1.5630/1.5625 1.5620/1.5615 .0015C/.0005C .38 350
TA-203242 1.250 2.625/2.605 2.009/1.991 .068 6 2.0000/1.9995 1.2500/1.2494 2.0010/2.0000 1.9993/1.9983 .0015C/.0004C 1.10 520
TA-243848 1.500 3.000/2.980 2.415/2.397 .086 6 2.3750/2.3745 1.5000/1.4994 2.3760/2.3750 2.3743/2.3733 .0016C/.0005C 1.43 770
TA-324864 2.000 4.000/3.980 3.195/3.177 .103 6 3.0000/2.9994 2.0000/1.9992 3.0010/3.0000 2.9992/2.9982 .0020C/.0005C 2.75 1100
TA-406080 2.500 5.000/4.975 3.978/3.958 .120 6 3.7500/3.7492 2.5000/2.4990 3.7510/3.7500 * .0023C/.0005C 5.50 1800
TA-487296 3.000 6.000/5.970 4.728/4.708 .120 6 4.5000/4.4990 3.0000/2.9988 4.5010/4.5000 * .0026C/.0005C 9.50 2600
TA-6496128 4.000 8.000/7.960 6.265/6.235 .139 6 6.0000/5.9988 4.0000/3.9980 6.0010/6.0000 * .0036C/.0004C 20.20 5000


Load/Life Graph (Lines indicate limiting load for given BALL BUSHING Bearing)

Thomson Products

Determining Ball Bushing Bearing Size
To determine the proper Ball Bushing bearing size, enter the chart with the maximum load of the most heavily loaded bearing and the required travel life. Mark where the two lines intersect. All Ball Bushing bearing sizes that pass through or above and to the right of this point may be suitable for this application.

Note: For the purpose of using this chart:
Load on Most Heavily
Loaded Bearing
= Maximum Applied Load
K0

where:
K0 = the Load Correction Factor, which can be determined from the Polar Graph below.

Dynamic Load Capacity Correction Factor, K0
The Dynamic Load Capacity is based on a rated travel life of 2 million inches. The actual Dynamic Load Capacity can be affected by the orientation of the bearing or the direction of the applied load. For dynamic load correction factors, see polar graphs below.

Thomson Products

TA-4812 TA-61014
TA-81420
TA-101824
TA-122026
TA-162536
TA-203242
TA-243848
TA-324864
TA-406080
TA-487296
TA-6496128

Polar Graphs
The actual Dynamic Load Capacity of a Ball Bushing bearing is determined by the orientation of the bearing or direction of the applied load. The load Correction Factor K0, is found by knowing the direction of the applied load relative to the orientation of the bearing’s ball tracks and referring to the polar graph. To determine the actual Dynamic Load Capacity, multiply the proper correction factor by the Dynamic Load Capacity listed in the product table.