Available Upon Request

21M312-6A X 1/4

Timing Belt Pulley. 40PD Pitch. 21 Grooves. for 5/16" Wide Belt. 0.2500" Bore. Aluminum

Price
$13.78
Availability
408 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
21M312-6A X 1/4
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
6FC
Bore (+.001 - .000)
0.2500
Face Width
0.345
Overall Length
0.625
Hub Proj.
15/64
Hub Dia.
0.710
Set Screws
8-32(2)
21M312-6A X 1/4 is one of our stock timing belt pulleys. It features 21 grooves and is compatible with 40DP pitch and 5/16" wide belts. The entire part is made of Aluminum.

Our timing belt pulleys are commonly utilized in a range of industries such as automation,  robotics, medical, packaging, sorting, food processing, and others.Features and Benefits:
Pitch: 40DP
No of Grooves: 21
For Belt: 5/16" Wide
Bore: 0.25"
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