Metal, Plastic, & Brass Ladder Chain Sprockets

.250" &  .375" PITCH 
Sprockets, Assorted Materials (see below) - .110" & .168" FACE

Sprockets, .250 & .375 Pitch:
Nylon, Acetal, Stainless Steel, Steel, & Nylatron

SIZE 14 - .353" PITCH  • Molded Sprocket with Brass Insert  - .170" FACE
SIZE 17 - .353" PITCH  • Brass Sprocket - .170" FACE
SIZE 18 - .286" PITCH  • Molded Sprocket - .100" FACE
SIZE 19 - .185" PITCH  • Brass Sprocket - .087" FACE
SIZE 21 - .167" PITCH  •  Molded Sprocket - .065" FACE

4.24  mm PITCH - SIZE 21 • Molded Sprocket with Brass Insert  - 1.7 mm FACE
4.8    mm PITCH • Brass Sprocket - 2 mm FACE
6.35  mm & 9.52 mm PITCH • Steel or Acetal Sprockets
7.26  mm PITCH - SIZE 18 • Molded Sprocket with Metal Insert  - 2.5 mm FACE
 
Sprockets, SIZE 14, 18, 21 (4.24 mm):
Acetal, Black

Sprockets, SIZE 19:
Steel

Insert, SIZE 14, 18 (7.26 mm), 21 (4.24 mm), 4.8 mm: Brass, Knurled

SPECIFICATIONS - SIZE 14
Sprockets with Bore Set Screw - Spot Drill:  
.1875 - #4-40
.250 - #6-32
.3125 - #8-32

SPECIFICATIONS - SIZE 17
Sprockets with:
6 to 16 teeth have a #8-32 set screw
22 to 27 teeth have a #10-32 set screw

SPECIFICATIONS - SIZE 18 (.286"), 21
Bore is sized for press fit.
Use straight knurl on shafting for maximum torques.

SPECIFICATIONS - SIZE 19
Sprockets with:
7 & 8 teeth have a #8-32 set screw
9 to 24 teeth have a #10-32 set screw

SPECIFICATIONS - SIZE 18 (7.26 mm)
Sprockets with:
4 & 6 mm bore have an M3 set screw & spot drill
8 mm bore have an M4 set screw & spot drill

SPECIFICATIONS - SIZE 4.24 mm
Sprockets with:  
3 mm & 4 mm bore have an M2.5 set screw & spot drill
5 mm & 6 mm bore have an M3 set screw & spot drill

SPECIFICATIONS - SIZE 4.8 mm
Bore Tolerance: +0.018/0