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spacer Kaydon Bearings - Reali-Slim MM metric bearings
Kaydon Bearings - part number codes

Kaydon Reali-Slim TT® turntable bearings are marked for complete identification with an 11-digit part number. Positions 1–8 identify type, ball size, and ball pitch. Position 9 identifies gearing. Positions 10 and 11 identify inner and outer holes.
 

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Position 1 2 3   4 5 6 7 8 9 10 11
Nomenclature Type Ball size (in 1/8")   Ball pitch diameter (in inches x 100) Gearing Inner hole Outer hole
Example T 0 1 - 0 0 2 2 5 E A C
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Position 1—Type
T Four-point contact radial ball bearing

 

Position 9—Gearing
E External gear
N Internal gear
P Plain—no gear

 

Position 10—Inner hole
A Inner hole style of through holes
B Tapped mounting holes
C Countersunk mounting holes

 

Position 11—Outer hole
A Outer hole style of through holes
B Tapped mounting holes
C Countersunk mounting holes

 
Holes sized for #4-40 screws, tapped, countersunk, or through gears set at full depth involute, 64 DP., 20° pressure angle.

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