Item # SP10018-1 1/2x2 15/16, Dalton Roller Chain Shear Pin Coupling "RCSPC" On Dalton Gear Co.

A complete line of Dalton Shear Pin (torque limiter) Roller Chain Couplings was developed for applications where horsepower and torque or high or extreme accuracy is desired for torque settings.

The coupling halves are hobbed with a special tooth form and hardened 45 to 50 Rockwell "C". Roller chain couplings, when used correctly, are unsurpassed by any other more expensive coupling. Standard sprockets should not be used for coupling applications.

The Dalton Roller Chain Shear Coupling (RCSPC) has an accurate torque release obtained by precision machining of the shear pin neck diameter and material used. The maximum capacity in inch pounds is up to five times greater than the rated capacity of friction type torque limiters. When loads occur beyond the rated capacity, the pin shears at the neck. A new pin when installed allows operation of the equipment with no damage to any part, mechanical or other wise. The pin must be replaced with a Dalton Shear Pin or equivalent. Maximum capacities range from 738 inch pounds to 66.504 inch pounds. Gear Shear Pin Couplings (GSPC) are available to order. Our engineering department is available for more information or when stock sizes do not suit your needs.

Please call for discounts on list prices.

Unit of Measure

Specifications | Torque Carrying Capacity of Shear Pins

Specifications

Stock Bore Shear Pin Coupling Half	N/A 1 1/2 Inch
Stock Bores St'd Coupling Half Includes KW & SS	N/A 2 15/16 Inch
A - Overall Length	N/A 6 23/32 Inch
B - Length	N/A 1 Inch
C - Length	N/A 5 23/32 Inch
D - Width	N/A 23/32 Inch
E - Diameter	N/A 8 11/32 Inch
F - Pitch	N/A 2 1/2 Inch
G max. - Diameter	N/A 3.25 Inch
H max. - Diameter	N/A 3.875 Inch
I - Diameter	N/A 6 1/4 Inch
J - Diameter	N/A 9/16 Inch

Torque Carrying Capacity of Shear Pins

N/A The following table gives the torque carrying capacity of shear pins.
It is based on the following formula:
TT=ARS#N=0.7854D2S#NR when
T= Allowable torque in inch pounds.
R= Radius from center of shaft to center of pin in inches.
A=Area at notch of shear pin in square inches.
D=Diameter at notch of shear pin in inches.
N=Number of pins in shear. The tables are given for 1 pin.
S#=Shearing stress of shear pins in pounds per square inch.

STEEL SHEAR PINS (ULTIMATE SHEAR STRESS 62,000 PSI) ALLOWABLE TORQUE ON ONE PIN IN INCH-POUNDS

Coupling Size	Neck Diameter of pin in inch
Coupling Size	1/8	3/16	1/4	5/16	3/8	7/16	1/2	5/8
SP5016	738	1688	3006
SP5018	923	2103	3769	5901
SP6018	1114	2523	4529	7101	10.249
SP6020	1207	2739	4911	7684	11.087	15.101
SP8018	1493	3386	6039	9473	13.647	18.599
SP8020	1686	3814	6809	10.654	15.372	20.924	27.362
SP10018
	4235	7582	11.829	17.084	23.267	30.396
SP10020			8706	13.621	19.561	26.686	34.887	54.500
SP12020				16.528	23.900	32.586	42.556	66.504

Specifications

Stock Bore Shear Pin Coupling Half

Stock Bores St'd Coupling Half Includes KW & SS

A - Overall Length

B - Length

C - Length

D - Width

E - Diameter

F - Pitch

G max. - Diameter

H max. - Diameter

I - Diameter

J - Diameter

Torque Carrying Capacity of Shear Pins