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Martin BK47 1 1/8 FHP Sheave BS, 4L/5L or B Belt Section, 1 Groove, 1-1/8" Bore, Class 30 Gray Cast Iron, 4.45" OD, 5575 max rpm, 3.7 Datum/4.1 Datum
|Price:||$30.08 & FREE Shipping on orders over $49. Details|
Only 2 left in stock (more on the way).
Ships from and sold by Amazon.com. Gift-wrap available.
Specifications for this item
|Part Number||BK47 1 1/8|
|Material Type||Cast Iron|
|Bore Diameter||1.125 inches|
|Outside Diameter||4.45 inches|
|Bore Diameter Tolerance||+ .002 - .000 inches|
|Max Rotational Speed||5575 RPM|
|Number of Items||1|
|Outside Diameter Tolerance||+/- .020 inches|
|Overall Length||1 5/32 inches|
|Size||5575 max rpm|
|Style Name||3.7 Datum/4.1 Datum|
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Top Customer Reviews
By Dennis L. Allen on October 16, 2014
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I bought this for converting an old Powermatic Model 90 lathe from Reeves drive to step-cone drive. That is cheaper than repairing the Reeves drive. It is also much quieter and gives me lower speeds (down to about 270 rpm) than are possible with the original lathe transmission (slowest was about 700 rpm). Putting two sizes of this pulley on the headstock spindle is what gives me two speed ranges. These sheaves are heavy and well-machined.
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