Spur Gears
QTC offers many types of spur gears for your application. Our spur gears are made in a variety of configurations, modules and materials, including: ground, hubless, plastic, stainless steel, injection molded, and brass.
Click any of the spur gear images below to view full details of that type of spur gear.
Click here for technical information on our spur gears.

KMSGA / KMSGB
Ground Spur Gears
Modules 1 & 1.5
KMSGA Module 1

KMSGB Module 1
KMSGA Module 1.5

KMSGB Module 1.5

KMSGA / KMSGB
Ground Spur Gears
Module 2
KMSGA Module 2

KMSGB Module 2

KMSGA / KMSGB
Ground Spur Gears
Module 2.5
KMSGA Module 2.5 
KMSGB Module 2.5

KMSGA / KMSGB
Ground Spur Gears
Modules 3 & 4
KMSGA Module 3KMSGB Module 3

KMSGA Module 4
KMSGB Module 4

KKSG
Ground Spur Gears
Modules 1 ~ 3
KKSG Module 1

KKSG Module 2
KKSG Module 3

KSSGS
Ground Spur Pinion Shafts
Modules 1.5 ~ 3
KSSGS Module 1.5

KSSGS Module 2
KSSGS Module 2.5
KSSGS Module 3

KSSG
Ground Spur Gears
Modules 0.5 & 0.8
KSSG Module 0.5

KSSG Module 0.8

KSSG
Ground Spur Gears
Module 1
KSSG Module 1


KSSG
Ground Spur Gears
Module 1.5
KSSG Module 1.5


KSSG
Ground Spur Gears
Modules 2 ~ 3
KSSG Module 2

KSSG Module 2.5

KSSG Module 3


KSSG
Ground Spur Gears
Modules 4 ~ 10
KSSG Module 4

KSSG Module 5

KSSG Module 6
KSSG Module 8
KSSG Module 10

KSSG
Ground Spur Gears
Modules 1.5 ~ 6, RSeries
KSSG Module 1.5

KSSG Module 2
KSSG Module 2.5
KSSG Module 3
KSSG Module 4
KSSG Module 5
KSSG Module 6

KSSAG
Ground Spur Gears
Modules 1 ~ 6
KSSAG Module 1

KSSAG Module 1.5
KSSAG Module 2
KSSAG Module 2.5

KSSAG Module 3
KSSAG Module 4
KSSAG Module 5
KSSAG Module 6

KKS-H to order Hardened Plus, please specify Catalog No. + H.
Thermal Refined Spur Gears
Modules 1.5 ~ 5
KKS Module 1.5

KKS Module 2
KKS Module 2.5
KKS Module 3
KKS Module 4
KKS Module 5

KSSS
Spur Pinion Shafts
Modules 0.5 ~ 3
KSSS Module 0.5

KSSS Module 0.8
KSSS Module 1
KSSS Module 1.5
KSSS Module 2
KSSS Module 2.5
KSSS Module 3

KSS
Spur Gear
Modules 0.5 & 0.8
KSS Module 0.5

KSS Module 0.8


KSS-H to order Hardened Plus, please specify Catalog No. + H.
Spur Gears
Module 1 ~ 2.5
KSS Module 1

KSS Module 1.5

KSS Module 2

KSS Module 2.5


KSS-H to order Hardened Plus, please specify Catalog No. + H.
Spur Gears
Modules 3 & 4
KSS Module 3

KSS Module 4


KSS-H to order Hardened Plus, please specify Catalog No. + H.
Spur Gears
Module 5
KSS Module 5


KSS-H to order Hardened Plus, please specify Catalog No. + H.
Spur Gears
Modules 6 ~ 10
KSS Module 6

KSS Module 8

KSS Module 10

KSSA
Spur Gears
Modules 1 ~ 5
KSSA Module 1

KSSA Module 1.5
KSSA Module 3

KSSA Module 4
KSSA Module 5

KSSY
Spur Gears
Modules 0.8 and 1
KSSY Module 0.8

KSSY Module 1

KSSAY
Spur Gears
Module 1
KSSAY Module 1


KSUS
Stainless Steel Spur Gears
Modules 1 ~ 2
KSUS Module 1

KSUS Module 1.5

KSUS Module 2
KSUSA Module 2

KSUS
Stainless Steel Spur Gears
Module 2.5 ~ 4
KSUS Module 2.5

KSUSA Module 2.5
KSUS Module 3
KSUSA Module 3
KSUS Module 4
KSUSA Module 4

KNSU
Plastic Spur Gears
With Steel Cores
Modules 1, 1.5, 2, 2.5, and 3
KNSU Module 1

KNSU Module 1.5
KNSU Module 2
KNSU Module 3

KPSU
Plastic Spur Gears
With Steel Cores
Modules 1, 1.5 and 2
KPSU Module 1

KPSU Module 1.5
KPSU Module 2

KPS / KPSA
Plastic Spur Gears
Modules 1 ~ 3
KPS Module 1

KPS Module 1.5

KPS Module 2
KPSA Module 2


KPS / KPSA
Plastic Spur Gears
Modules 2.5 & 3
KPS Module 2.5KPSA Module 2.5

KPS Module 3
KPSA Module 3


KDS
Plastic Spur Gears
Modules 0.5 ~ 1
KDS Module 0.5

KDS Module 0.8
KDS Module 1


KBSS
Brass Spur Gears
Modules 0.5 ~ 1
KBSS Module 0.5

KBSS Module 0.8
KBSS Module 1

KSSR
Steel Ring Gears
Modules 2 ~ 3
KSSR Module 2

KSSR Module 2.5
KSSR Module 3