#40 Roller Chain Sprocket, Type B, 21 Tooth 3/4″ Bore 40B21-3/4

Bulk Order Quotes
No Minimum Orders
Fast & Free Shipping
US Based Stock

$18.45$69.50

Datasheets

Material

Steel

Chain Number

40

Chain Pitch

0.5000 in.

Number of Chain Rows

1

Number of Teeth

21

Outside Diameter

3.6170 in.

Pitch Diameter

3.3548 in.

Single Strand Tooth Thickness

0.2840 in.

Hub Configuration

B

Hub Outside Diameter

2.7500 in.

Length thru Bore

1 in.

Construction Detail

Solid

Bore Type

Finished Bore

Finished Bore Size

0.7500 in.

Key Way Size

3/16 X 3/32 in.

Set Screw Size

1/4-20 unc in.

Set Screw Location

(1) Over Keyway and (1) At 90°

Additional information

Weight 1.6875 lbs
Inner Diameter

Material

Pack Size - Bigger Packs, Bigger Savings

, ,

Series

Size

#40

Teeth

21 Tooth

Chain Size

#40

Related Products

Fast & Free Shipping

Within the USA. Expedited or International Shipping is also available.

Published Pricing

Our pricing is transparent and easily accessible on our product pages.

No Minimum Orders

Buy only what you need, with no requirement to become a distributor.

Client Testimonial

What they say about Summit Collars

Find reviews from our previous customers that have ordered from us to keep their machinery running smoothly.