STOCK PRODUCTS

DSHT-8M-QD®

Equivalent to Polychain®

Available in Dozens of sizes

for Your Specific Need

DSHT-8M-QD® is equivalent to HTD®, the first curvilinear tooth profile for high torque drives.

Excellent registration, high torque capacity and excellent high-speed capability.

Diversified Specialties Inc. has been producing HTD® profile pulleys since 1974, and our pulleys are manufactured from steel, ductile- iron and cast-iron castings.

Pulleys with tooth range from 22 to 80 are flanged.

EQUIVALENT TO HTD® F=1.13
Sprocket Description Q.D. Bores N.O. of Teeth Diameters (inches) Type
Pitch O.D. Flange
Pitch O.D. Flange
P22-8M-20 MPB 22 2.206 2.152 2 5/8 6F-1
P24-8M-20 JA 24 2.406 2.352 2 3/4 *EF-1
P26-8M-20 JA 26 2.607 2.553 2 29/32 *EF-1
P28-8M-20 HT 28 2.807 2.759 3 7/32 *EF-1
P30-8M-20 HT 30 3.008 2.958 3 13/32 *EF-1
P32-8M-20 HT 32 3.208 3.156 3 5/8 *EF-1
P34-8M-20 SH 34 3.409 3.355 3 13/16 DF-1
P36-8M-20 SH 36 3.609 3.555 4 DF-1
P38-8M-20 SH 38 3.81 3.756 4 7/32 DF-1
P40-8M-20 SH 40 4.01 3.956 4 13/32 DF-1
P44-8M-20 SDS 44 4.411 4.357 4 3/4 DF-1
P48-8M-20 SDS 48 4.812 4.758 5 7/32 DF-1
P56-8M-20 SDS 56 5.614 5.56 6 DF-1
P64-8M-20 SDS 64 6.416 6.362 6 23/32 DF-1
P72-8M-20 SDS 72 7.218 7.164 7 1/2 DF-1
P80-8M-20 SDS 80 8.02 7.966 8 13/32 DF-1
P90-8M-20 SDS 90 9.023 8.969 (-) D-2
EQUIVALENT TO HTD® F=1.5
Sprocket Description Q.D. Bores N.O. of Teeth Diameters (inches) Type
Pitch O.D. Flange
P22-8M-30 MPB 22 2.206 2.152 2 5/8 6F-1
P24-8M-30 MPB 24 2.406 2.352 2 3/4 6F-1
P26-8M-30 MPB 26 2.607 2.553 2 29/32 6F-1
P28-8M-30 HT 28 2.807 2.759 3 7/32 *EF-1
P30-8M-30 HT 30 3.008 2.958 3 13/32 *EF-1
P32-8M-30 HT 32 3.208 3.156 3 5/8 *EF-1
P34-8M-30 SH 34 3.409 3.355 3 13/16 AF-1
P36-8M-30 SH 36 3.609 3.555 4 AF-1
P38-8M-30 SH 38 3.81 3.756 4 7/32 AF-1
P40-8M-30 SH 40 4.01 3.956 4 13/32 AF-1
P44-8M-30 SDS 44 4.411 4.357 4 3/4 AF-1
P48-8M-30 SDS 48 4.812 4.758 5 7/32 AF-1
P56-8M-30 SDS 56 5.614 5.56 6 AF-1
P64-8M-30 SK 64 6.416 6.362 6 23/32 DF-1
P72-8M-30 SK 72 7.218 7.164 7 1/2 DF-1
P80-8M-30 SK 80 8.02 7.966 8 13/32 DF-2
P90-8M-30 SK 90 9.023 8.969 (-) D-2
P112-8M-30 SK 112 11.229 11.175 (-) D-2
EQUIVALENT TO HTD® F=2.38
Sprocket Description Q.D. Bores N.O. of Teeth Diameters (inches) Type
Pitch O.D. Flange
P28-8M-50 JA 28 2.807 2.759 3 2/9 AF-1
P30-8M-50 JA 30 3.008 2.958 3 2/5 AF-1
P32-8M-50 HT 32 3.208 3.156 3 5/8 AF-1
P34-8M-50 SH 34 3.409 3.355 3 13/16 DF-1
P36-8M-50 SH 36 3.609 3.555 4 DF-1
P38-8M-50 SH 38 3.81 3.756 4 2/9 DF-1
P40-8M-50 SH 40 4.01 3.956 4 13/32 DF-1
P44-8M-50 SD 44 4.411 4.357 4 3/4 DF-1
P48-8M-50 SD 48 4.812 4.758 5 7/32 DF-1
P56-8M-50 SK 56 5.614 5.56 6 DF-1
P64-8M-50 SK 64 6.416 6.362 6 5/7 DF-1
P72-8M-50 SK 72 7.218 7.164 7 1/2 DF-1
P80-8M-50 SF 80 8.02 7.966 8 13/32 DF-1
P90-8M-50 SF 90 9.023 8.969 (-) D-1
P112-8M-50 SF 112 11.229 11.175 (-) D-2
P144-8M-50 E 144 14.437 14.383 (-) D-3
P192-8M-50 E 192 19.249 19.195 (-) D-3
EQUIVALENT TO HTD® F=3.75
Sprocket Description Q.D. Bores N.O. of Teeth Diameters (inches) Type
Pitch O.D. Flange
P34-8M-85 SH 34 3.409 3.355 3 4/5 AF-1
P36-8M-85 SH 36 3.609 3.555 4 AF-1
P38-8M-85 SH 38 3.81 3.756 4 7/32 AF-1
P40-8M-85 SD 40 4.01 3.956 4 13/32 AF-1
P44-8M-85 SD 44 4.411 4.357 4 3/4 AF-1
P48-8M-85 SD 48 4.812 4.758 5 2/9 AF-1
P56-8M-85 SK 56 5.614 5.56 6 AF-1
P64-8M-85 SK 64 6.416 6.362 6 5/7 AF-1
P72-8M-85 SF 72 7.218 7.164 7 1/2 AF-1
P80-8M-85 SF 80 8.02 7.966 8 13/32 AF-1
P90-8M-85 SF 90 9.023 8.969 (-) A-1
P112-8M-85 SF 112 11.229 11.175 (-) A-2
P144-8M-85 E 144 14.437 14.383 (-) D-3
P192-8M-85 E 192 19.249 19.195 (-) D-3

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