NEW MARTIN SDS 40MM

The Martin SDS 40MM is a Quick Disconnect (QD) tapered bushing designed for fast, secure mounting of sprockets, sheaves, and pulleys onto shafts. It features a 40 mm metric finished bore with a 12 x 3.3 mm keyway, a self-locking 3/4"/ft taper on the barrel, and accepts conventional or reverse mounting orientations. Designed for horizontal shaft orientation, this bushing is industry-interchangeable with other major manufacturers' QD bushing systems of the same SDS series designation.
Specification
Value
Brand
Martin (Martin Sprocket & Gear)
Model / Part Number
SDS 40MM
Bushing Size / Series
SDS
Bore Diameter
40 mm (1.5748 in)
Bore Type
Finished with Keyway (Metric)
Keyway Size
12 x 3.3 mm
Material
Ductile Iron / Steel
Shaft Orientation
Horizontal
Barrel Diameter
2.187 in
Barrel Length
0.875 in (7/8 in)
Flange Outside Diameter
3.187 in (3.18 in)
Flange Thickness
0.43–0.50 in
Hub Diameter
3-1/2 in
Bolt Circle Diameter
2.69 in (2-11/16 in)
Number of Bolt Holes
3
Cap Screw / Screw Size
1/4-20 x 1-3/8 in
Screw Torque
108 in-lbs
Length Through Bore (OAL)
1.31 in (1-5/16 in)
Torque Rating
5,000 in-lb
Barrel Taper
3/4 in/ft (TPF)
Mounting Type
Conventional or Reverse
Flange Split
Yes
Weight
~1.0–2.1 lbs
We warranty all items for 30 days from date of purchase.