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Click to enlarge image

 
Dimensional Chart
Model
Number

Includes
Clutch #
(see HU Series)

Bore Range
(see Bore chart)
A
Housing O.D.
B
Length
C
Fastener
Centerline

D
Keyway Width
+.002/-.000

E
Keyway Height
+.000/-.005
HB53 HB53 -2 thru -4 .8125 .786 .393 .0938 .763
HB54 HB54 -2 thru -4 .8125 .911 .455 .0938 .763
HB63 HB63 -4 thru -M10 1.3125 1.192 .596 .1250 1.247
HB64 HB64 -4 thru -M10 1.3125 1.442 .721 .1250 1.247
HB73 HB73 -8 thru -12 2 1.692 .846 .1875 1.901
HB74 HB74 -8 thru -12 2 2.067 1.033 .1875 1.901
 
Bore & Fastener Chart
Bore # Bore Dia . Set Screw Roll Pin Keyway
(+.001"/-.000") (-T OR -TT) (-R) (-K, KT,OR -KTT)
 
2 1/8 (.1250") #3-48 3/64" N/A
M4 4mm(.1575") m3 x .5 2mm N/A
3 3/16 (.1875") #3-48 1/16" 1/16"
M5 5mm (.1969") m4 x .7 2mm 2mm
M6 6mm (.2362") m4 x .7 2mm 2mm
4
(50 series) 		1/4 (.2500") #3-48 5/64" 1/16"
4
(60 series) 		1/4 (.2500") #5-40 3/32" 1/16"
M7 7mm (.2756") m4 x .7 2.5 mm 2mm
5 5/16 (.3125") #5-40 1/8" 3/32"
M8 8mm (.3150") m4 x .7 2.5mm 2mm
M9 9mm (.3543") m4 x .7 2.5mm 3mm
6 3/8 (.3750") #5-40 1/8" 3/32"
M10 10mm (.3937") m5 x .8 2.5mm 3mm
M11 11mm (4331") m5 x .8 3mm 4mm
7 7/16 (.4375") #8-32 1/8" 3/32"
M12 12mm (.4724") m6 x 1.0 3mm 4mm
8 1/2 (.5000") #10-32 1/8" 1/8"
M13 13mm (.5118") m6 x 1.0 3mm 5mm
M14 14mm (.5512") m6 x 1.0 3mm 5mm
9 9/16 (.5625") #10-32 1/8" 1/8"
M15 15mm (.5906") m6 x 1.0 4mm 5mm
10 5/8 (.6250") #10-32 3/16" 1/8"
M16 16mm (.6299") m6 x 1.0 4mm 5mm
M17 17mm (.6693") m6 x 1.0 5mm 5mm
11 11/16 (.6875") #10-32 3/16" 1/8"
M18 18mm (.7087") m6 x 1.0 5mm 6mm
M19 19mm (.7480") m6 x 1.0 5mm 6mm
12 3/4 (.7500") #10-32 3/16" 1/8"
Material Chart
Material
Code		 Material Type Finish Status
A STEEL Standard-
all series
  Block-Case Hardened Steel Light Oil
  Rollers-Hardened 440C Stainless Steel Passivate
  Retainers-304 Stainless Steel Passivate
  Springs-302 Stainless Steel Passivate
  Fasteners-Steel Black Oxide
  Housing(where applicable)-Mild Steel or Pre-hard Steel Black Oxide
S STAINLESS STEEL Standard-50 series
(Optional-60&70 Series)
  Block-302 Stainless Steel Passivate
  Rollers-Hardened 440C Stainless Steel Passivate
  Retainers-304 Stainless Steel Passivate
  Springs-302 Stainless Steel Passivate
  Fasteners-Stainless Steel Passivate
(NOTE: HARDENED STAINLESS UNITS AVAILABLE ON REQUEST)

Fastener Type Chart
Fastener Choice Description
A PLAIN (NO FASTENER)
T ONE SET SCREW
TT TWO SET SCREWS 90° APART
R ROLL PIN
RT ROLL PIN WITH ONE SET SCREW AT 90°
K KEYWAY
KT KEYWAY WITH ONE SET SCREW
(over keyway where possible)
KTT KEYWAY WITH TWO SET SCREWS AT 90°
   
NOTE: ALL "HB" UNITS COME STANDARD WITH KEYSLOT ON HOUSING O.D.
 
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375 Morse St., Hamden, CT 06517
Phone:(203) 777-5395
Fax: (203) 773-1976 • Contact Us