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Imperial Four Beam Couplings – Aluminium 7075 (A) or Stainless Steel 303 (SS)

Bore tolerance  +0.001 in / -0.000 in   Recommended shaft tolerance  +0.0000 in / -0.0005 in   Type BCH couplings have socket head cap screws each end   Type BCG couplings size BCG6  to BCG12 have one set screw each end, size BCG14 to BCG20 have two set screws 120 degrees apart   Zero backlash   Dims in inches

Part Number Specifications
Clamp
Style
Set Screw
Style
Bores B1, B2
(in)
Outer Ø OD
(in)
Length L
(in)
Cap Screw
(BCH)
Set Screw
(BCG)
BCH6 BCG6 1.5 (.0938) 0.375 0.563 M1.6 M2
BCH8 BCG8 1.5 (.0938) 0.5 0.75 M2 M2
2 (.1250) 0.5 0.75 M2 M2
BCH10 BCG10 2 (.1250) 0.625 0.8 M2 M3
2.5 (.1563) 0.625 0.8 M2 M3
3 (.1875) 0.625 0.8 M2 M3
BCH12 BCG12 2 (.1250) 0.75 0.9 M2.5 M4
2.5 (.1563) 0.75 0.9 M2.5 M4
3 (.1875) 0.75 0.9 M2.5 M4
4 (.2500) 0.75 0.9 M2.5 M4
BCH14 BCG14 3 (.1875) 0.875 1.063 M3 M5
4 (.2500) 0.875 1.063 M3 M5
5 (.3125) 0.875 1.063 M3 M5
BCH16 BCG16 4 (.2500) 1 1.25 M4 M4
5 (.3125) 1 1.25 M4 M4
6 (.3750) 1 1.25 M4 M4
BCH18 BCG18 4 (.2500) 1.125 1.5 M4 M5
5 (.3125) 1.125 1.5 M4 M5
6 (.3750) 1.125 1.5 M4 M5
8 (.5000) 1.125 1.5 M4 M5
BCH20 BCG20 4 (.2500) 1.25 1.5 M4 M6
5 (.3125) 1.25 1.5 M4 M6
6 (.3750) 1.25 1.5 M4 M6
8 (.5000) 1.25 1.5 M4 M6
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