Power Transmission

#25 Bored-to-Size Sprockets

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Features
  • Type BS (Bored to Size). Setscrews are 90° apart
  • One-piece Forged Construction
  • Black oxide finish
  • Setscrews are on keyway and 90°
  • Hub sizes vary to suit different bore sizes
Product Specifications

Product Specifications

Specs

X = Current stock item, other bore requirements are available upon request.

 

No. Teeth CI Part Number Diameters (Inches) LTB Finished Bores Weight (Lbs.)
Outside Diameter Hub Diameter 1/4 5/16 3/8 1/2 5/8 3/4
9 25BS09 0.84 7/16 1/2 X – – – – – 0.03
10 25BS10 0.92 1/2 1/2 X – – – – – 0.03
11 25BS11 1.00 9/16 1/2 X X – – – – 0.04
12 25BS12 1.08 5/8 1/2 X X X – – – 0.06
13 25BS13 1.17 23/32 1/2 X X X – – – 0.07
14 25BS14 1.25 13/16 1/2 X X X X – – 0.08
15 25BS15 1.33 57/64 1/2 X X X X – – 0.10
16 25BS16 1.41 31/32 1/2 X X X X – – 0.12
17 25BS17 1.49 1-1/32 1/2 X X X X X – 0.14
18 25BS18 1.57 1-1/8 1/2 X X X X X X 0.16
19 25BS19 1.65 1-7/32 1/2 X – X X X X 0.19
20 25BS20 1.73 1-9/32 5/8 X X X X X X 0.25
21 25BS21 1.81 1-3/8 5/8 X X X X X X 0.28
22 25BS22 1.89 1-7/16 5/8 X X X X X X 0.31
23 25BS23 1.97 1-1/2 5/8 X X X X X X 0.32
24 25BS24 2.05 1-1/2 5/8 – – X X X X 0.33
25 25BS25 2.13 1-1/2 5/8 – – X X X X 0.34
26 25BS26 2.21 1-1/2 5/8 – – X X X X 0.35
28 25BS28 2.37 1-1/2 5/8 – – X X X X 0.36
30 25BS30 2.53 1-1/2 5/8 – – X X X X 0.38
32 25BS32 2.69 1-1/2 5/8 – – X X X X 0.40
35 25BS35 2.93 1-1/2 3/4 – – X X X X 0.48
36 25BS36 3.01 1-1/2 3/4 – – X X X X 0.50
40 25BS40 3.33 2 3/4 – – – X X X 0.53
42 25BS42 3.49 2 3/4 – – – X X X 0.55
45 25BS45 3.73 2 3/4 – – – X X X 0.56
48 25BS48 3.96 2 3/4 – – – X X X 0.56
54 25BS54 4.44 2 3/4 – – – X X X 1.00
60 25BS60 4.92 2 3/4 – – – X X X 1.10
72 25BS72 5.88 2 3/4 – – – X X X 1.30

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