Torque Transmission
Timing Belt Pulley L series 3/8" Pitch, Timing Pulleys
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3/8" Pitch Timing Pulleys, L Series

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3/8" Pitch Timing Pulley, L Series

Torque Transmission's 3/8" pitch nylon timing pulleys ensures longer belt life with virtually no slippage and minimum backlash. A minimal amount of belt tension is required to prevent slippage, reducing the bearing loads on the driving shaft.

The nylon molded pulleys are reinforced with metal inserts to offer the lightweight advantages of nylon along with the advantages of a metal-to-metal connection at the hub. This combination provides a high strength-to-weight ratio and low inertia.

Our L Series Timing Pulleys come in a wide selection, ensuring one to fit your needs. If not, we will work with you to create a custom designed timing pulley for your application. Our Timing Pulleys also available in 3mm, 5mm, 8mm and 1/5" pitch.

Features

  • Unique tooth shape provides no slippage, like there is with flat belts
  • Made to rigid standards for true design pitch
  • Standard, metric and D-bore sizes are available
  • Optional flange
  • Plastic or metal hubs
  • Setscrews / Keyways
  • Belts available
  • Made In USA

Pulley Benefits

  • Lightweight & Strong
  • Low Inertia
  • Cost effective
  • Noise reduction
  • Shock and Chemical Resistant
  • Natural lubricity

XL & L Timing Belt Pulley Pitch Selection Guide (pdf)

L Series, 3/8 " Pitch Timing Pulley Dimensions

Part Number
Number
Of
Teeth
Pitch
Dia.
Outside
Dia.
+/- .005
Flange
Dia.
Hub
Dia.
Standard Bores
Type
Pulley No.
Flange
Code*
1/4
5/16
3/8
1/2
5/8
3/4
10L050
11L050
12L050
13L050
14L050
15L050
16L050
17L050
SF, DF
SF, DF
SF, DF
SF, DF
SF, DF
SF, DF
SF, DF
SF, DF
10
11
12
13
14
15
16
17
1.194
1.313
1.432
1.552
1.671
1.790
1.910
2.029
1.164
1.283
1.402
1.522
1.641
1.760
1.880
1.999
1.49
1.63
1.73
1.79
2.00
2.12
2.22
2.34
.88
.88
.88
1.00
1.25
1.25
1.25
1.25


































18L050
19L050
20L050
21L050
22L050
24L050
28L050
30L050
32L050
SF, DF
SF, DF
SF, DF
SF, DF
SF, DF
SF, DF
SF, DF
SF, DF
SF, DF
18
19
20
21
22
24
28
30
32
2.149
2.268
2.387
2.507
2.626
2.865
3.342
3.581
3.820
2.119
2.238
2.357
2.477
2.596
2.835
3.312
3.551
3.790
2.47
2.50
2.74
2.85
2.96
3.15
3.55
3.78
4.05
1.25
1.25
1.25
1.25
1.25
1.25
1.25
1.25
1.25


















































* Flange code designates pulley having one flange (SF), two flanges (DF) or no flange (NF)
Optional setscrew(s) supplied is #10-24

Standard Tolerances for Bore Sizes, Keyways and Setscrews