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

Precision Steel Ball Bushing™ Bearings - INCH

(Open Type) For End-Supported Applications


  • Specs
  • Drawing
Thomson Super Ball Bushing Bearings
ΔSee chart on bottom of this page.

NOTE:
Part number is for a standard item.
Other options available: Stainless Steel Balls, Black Oxide Sleeve and Retainer, Nylon Balls, Dry-Packed, Stainless Steel (.500 through 1.000 sizes) or With Integral Wipers.

Thomson Precision Steel Ball Bushing Bearings


Catalog Number Nom.
Dia.
Length
C
Distance Between
Ret. Rings
C1
Ret. Ring
Groove Min.
C2
Working Bore
Dia.
T
Recommending
Housing Bore
(Before Adjustment)
D
Min.
Slot
Width
E
Angle
deg
α
Number
of Ball
Circuits
Ball Bushing
Bearing
Mass
lb
DynamiteΔ
Load
Capacity
lbf
TOPN-81420 .500 1.250/1.235 .967/.951 .046 .5005/.4995 .8760/.8740 .31 50 3 .07 60
TOPN-101824 .625 1.500/1.485 1.108/1.092 .056 .6255/.6245 1.1260/1.1240 .38 60 3 .11 105
TOPN-122026 .750 1.625/1.610 1.170/1.154 .056 .7505/.7495 1.2510/1.2490 .44 60 4 .17 140
TOPN-162536 1.000 2.250/2.235 1.759/1.741 .068 1.0005/.9995 1.5635/1.5615 .56 60 4 .32 240
TOPN-203242 1.250 2.625/2.605 2.009/1.991 .068 1.2506/1.2494 2.0010/1.9990 .63 50 5 .90 400
TOPN-243848 1.500 3.000/2.980 2.415/2.397 .086 1.5006/1.4994 2.3760/2.3740 .75 50 5 1.12 600
TOPN-324864 2.000 4.000/3.980 3.195/3.177 .103 2.0008/1.9992 3.0010/2.9990 1.00 50 5 2.16 860
TOPN-406080 2.500 5.000/4.975 3.978/3.958 .120 2.5010/2.4990 3.7515/3.7485 1.25 50 5 4.24 1380
TOPN-487296 3.000 6.000/5.970 4.728/4.708 .120 3.0012/2.9988 4.5015/4.4985 1.50 50 5 7.33 2000
TOPN-6496128 4.000 8.000/7.960 6.265/6.235 .139 4.0020/3.9980 6.0020/5.9980 2.00 50 5 17.25 3800


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

TOPN-81420
TOPN-101824
TOPN-122026
TOPN-162536
TOPN-203242
TOPN-243848
TOPN-324864
TOPN-406080
TOPN-487296
TOPN-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.