D12B38

Metric Roller Chain Sprocket

Item #100965885

25 mm Minimum Bore

90 mm Maximum Bore

+ Show More

Auto Replenish

each One-time purchase

Product Details

Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at an angle to keyseat.

Manufactured of high carbon steel
Precise machining and processes ensure consistent finish and high quality
Bores are concentric to pitch line, minimizing run out
Chain rows are parallel and precisely spaced to increase longevity of sprocket and chain

Specifications

Series	B
No. of Teeth	38
Pitch Diameter [Min]	230.7 mm
Pin Diameter	12.065 mm
Bore Type	Reborable
Family Name	No. 12 - 19.050 mm Pitch - Double - Type B & C
Chain No.	12B, 12B-2
Single Strand Tooth Thickness	10.87 mm
Pitch Root Diameter	218.6 mm
Inch/Metric	Metric
Length Through Bore	50.01 mm
Bore Style	Minimum Bore
Root Diameter	218.6 mm
Width Across Teeth	30.33 mm
Material	Steel
Pitch Diameter	230.7 mm
Hub Dia.	130 mm
Outside Dia. [Min]	242.43 mm
Caliper Diameter	218.62 mm
Martin No.	12B38
No. of Strands Across	2
Sprocket Style	B
Hardened Teeth	Without Hardened Teeth
Hub Length Thru	39.13 mm
Chain Pitch	19.05 mm
Bore Range [Min]	25 mm
Outside Dia.	242.43 mm
Bore Range [Max]	90 mm
Weight	10.84 LB
EAN or UPC	697950401546