Available Upon Request

21M312-1A X 1/8

Timing Belt Pulley. 40PD Pitch. 21 Grooves. for 5/16" Wide Belt. 0.1250" Bore. Aluminum

Price
$13.78
Availability
462 in stock
Quantity
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Quantity Range 1 - 9 10 - 24 25 - 49 50 - 99 100+
Price unit $13.78 $12.59 $11.40 $8.74
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Lead time 7 weeks 7 weeks 7 weeks 7 weeks
* All products in stock except Timing Belt Tensioners and Timing Belts will ship within 2 days
* Timing Belt Tensioners will ship within 7 days
* Call us to find out if we can deliver this item earlier +1 (516) 746-3736
21M312-1A X 1/8
Material
Aluminum
Pitch
.0816″ (40 DP)
No. of Grooves
21
Pitch Dia.
0.546
Outside Dia.
0.532
Flange O.D.
0.710
Hub Type
Set Screw
Belt Width
0.3125
Type
6F
Bore (+.001 - .000)
0.1250
Face Width
0.449
Overall Length
0.6875
Hub Proj.
15/64
Hub Dia.
0.390
Set Screws
4-40(2)
21M312-1A X 1/8 is a standard timing pulley for 40DP pitch and 5/16" wide belts. It is a 6F type timing pulley with 2 flanges, which has 21 grooves. The entire part is made of Aluminum.

The timing belt pulleys we manufacture are commonly utilized in many industries, such as automation, robotics, sorting, medical, packaging, among others.Features and Benefits:
Pitch: 40DP
No of Grooves: 21
For Belt: 5/16" Wide
Bore: 0.125"
Material: Aluminum
Set Screw installation
Suitable with York’s timing pulley belts.
York holds certification to ISO 9001 standards, ensuring quality management. Additionally, all products adhere to RoHS/REACH compliance.

A Set Screw should:
• Hold the timing pulley tightly to the shaft and prevent slipping
• Allow you to easily readjust the pulley position to change drive system timing
• Allow field personnel to easily replace the timing pulley
A set screw should not:
• Damage the shaft or mar it
• Impede replacement or adjustment of the timing pulley
• Require special