oil seal
 o ring & packing
 shaft and housing
 material
 contact
 quality control
 About us
 


  *BORE DIMENSIONAL TOLERANCES:
 

To assure proper fit of oil seals, the dimensions of bore are recommended within the tolerances listed below. TCK seals are made to satisfy tight size specifications. Seals O.D are normally .004" to .010" (.10mm to .25mm) larger than the seal bore size.
TABLE -4 BORE DIAMETER IN INCH SIZES TABLE -5 BORE DIAMETER IN METRIC SIZES
Bore Diameter  Bore Tolerance Nominal                       Press-Fit O.D Tolerance  Eccentricity   Bore Diameter  O.D Diameter Tolerance  Eccentricity
Metal      O.D Rubber      O.D  Seal O.D Metal         O.D Rubber      O.D   Metal O.D Rubber O.D  Metal           O.D Rubber        O.D
up to       1.000
0.001
0.004 0.006
0.002
0.005 0.01   6.1~50 +0.10~+0.20 +0.15~+0.30 0.12 0.25
 1.001 to   2.000
0.001
0.004 0.007
0.002
0.005 0.01   50.1~80 +0.13~+0.23 +0.20~+0.35 0.18 0.35
2.001 to 3.000
0.001
0.004 0.008
0.002
0.008 0.015   80.1~120 +0.15~+0.25 +0.20~+0.35 0.25 0.50
3.001 to 4.000
0.0015
0.005 0.010
0.002
0.010 0.020   120.1~180 +0.18~+0.28 +0.25~+0.45 0.33 0.65
4.001 to 6.000
0.0015
0.005 0.010 -.002; +.003  0.010 0.020   180.1~300 +0.20~+0.30 +0.25~+0.45 0.40 0.80
6.001 to 8.000
0.002
0.006 0.010 -.002; +.003  0.012 0.025   300.1~500 +0.23~+0.35 +0.30~+0.555s 0.50 1.00
8.001 to 10.000
0.002
0.008 0.010 -.002; +.004  0.015 0.030  
10.001 to 20.000
0.002
0.008 0.010 -.002; +.006  0.020 0.040   1.Seal O.D The average of minimum three measurements to be taken at equally spaced positions
2.Eccentricity- The maximum variance between any of the readings used in determining seal O.D.
(3)ROTARY SHAFT SEALS
 
There are hundreds of different cross sectional shapes available today in rotary shaft seals.  TCK has a variety of shapes tooled and available. We teach and use a tired and true method of evaluating the application data, step-by-step, answering critical questions about what the seal must do, the parameters and conditions under which it must live and arrive at a generic definition of the required seal. Then we search the available shapes and tooled sizes to see if the right one exits. If it doesn't, we prepare to develop it for our customer.
 
(4)TEFLON SEALS AND ENGINEERED COMPONENTS
TCK is equipped to provide high volume, low cost Teflon and Teflon blend components of consistent quality as well as short run and prototype quantities. Various production methods are available depending upon component geometry, quantity, and material requirements. TCK has extensive experience in the design and fabrication of Teflon compounds used as seals ( valve seals, lip seals, face seals, shaft seal elements). We have an ever-increasing menu of Teflon blends available to either machine or mold any shape components you may need.