--- --- APWORKSHOP.COM.AU Router Bits ACCESSORIES CARBI-SMOOTH TBT 19 has a 15-degree bevelled surface. Note- for standard ball bearings see here and for bearings for Replaceable Insert router bits see here Part # Description Bearing A inch A mm B inch B mm Int. Diam. inch Int. Diam. mm A$ TBT 19 BALL BEARING - DELRIN COATED TB7 3/4 19 15/64 6 1/4 6.35 16.80 TBT 20 BALL BEARING - DELRIN COATED TB14 5/8 15.9 15/64 6 1/4 6.35 16.80 TBT 21 BALL BEARING - DELRIN COATED TB14 3/4 19 15/64 6 1/4 6.35 16.80 TBT 22 BALL BEARING - DELRIN COATED TB14 7/8 22.2 15/64 6 1/4 6.35 16.80 M= Metric Size, H= High Speed Steel, T= Carbide Tipped or Solid Carbide, A= Carbide Tipped on Nose (Pilot Panel Bits) B= Ball Bearing Guide, E/C = End Cutting, S = Single Flute, X= Long series bits not warrantied against breakage, XX= Extra long series bits not warrantied against breakage. Where bits are available in various arbor/shank diameters, suffix indicates: 5/16 inch, 3/8 inch, 1/2 inch, 10 mm (otherwise 1/4 inch). In diagrams, A= Cutting Width, B= Flute Length, C= Overall Length (includes bearing and screw), R, R1 or R2 = Radius of Cut, E= Pilot or Bearing Width, G= Depth of Cut, Bevel = Bevel, ID= Inside Diameter, T= Wood Thickness. ![]()
AUSTRALIA
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& REPLACEMENT PARTS
(DELRIN) BEARINGS
A = External Diameter, ID = Internal Diameter
All other TBT series bearings have a straight surface (illustrated).
(*Delrin is a protective surface treatment like Teflon). 