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KHD SERIES - FLANGE MOUNT KHD SERIES - THREAD MOUNT

KHD SERIES - for Moderate Loads, Low Drag Torque

Part Number Construction

Kerk KHD Anti-backlash Nut Assembly – 303 Stainless Steel Acme Lead Screw with Kerkote TFE Coating

The Kerk® KHD Series anti-backlash lead screw nut assembly makes use of the Kerk patented AXIAL TAKE-UP MECHANISM (see Technology section) to provide backlash compensation. The unique split nut with torsional take-up provides increased load capacity and axial stiffness over comparably sized ZBX units.

Although the KHD offers high axial stiffness, frictional drag torque (1-3 oz.in.) is very low. The anti-backlash mechanism in the KHD unit eliminates the need for load compensating preload forces.

The assembly consists of a 303 stainless steel acme lead screw mated with a self-lubricating polyacetal nut. End machining to customer specifications and Kerkote® TFE lead screw coating optional.

LEAD SCREWS | COMPARISON CHART | SCREW SIZE LIST | NUT FEATURE MATRIX | NUT STYLES
KHD SERIES: FLANGE MOUNT
 

Screw Ø

Nut Ø

Nut Length

Flange Ø

Flange Thickness

Mounting Hole Ø

Bolt Circle Ø

Dynamic Load

Drag Torque

CAD Model

A
in.
(mm)

B
in.
(mm)

C
in.
(mm)

D
in.
(mm)

E
in.
(mm)

F
in.
(mm)

G
in.
(mm)


lbs.
(kg)


oz.-in.
(Nm)

 

5/16
(8)

.80
(20.3)

2.0
(50.8)

1.50
(38.1)

.19
(4.8)

.200
(5.08)

1.125
(28.58)

20
(10)

1-3
(.007-.020)

Download

3/8
(10)

.80
(20.3)

2.0
(50.8)

1.50
(38.1)

.19
(4.8)

.200
(5.08)

1.125
(28.58)

20
(10)

1-3
(.007-.020)

 

 Outline Drawing – Kerk Acme Lead Screw Assembly with KHD Flange Mount Anti-backlash Nut

KHD SERIES: THREAD MOUNT

Screw Ø

Nut Ø

Nut Length

Flange Ø

Flange Thickness

Thread

Thread Length

Dynamic Load

Drag Torque

CAD Model

A
in.
(mm)

B
in.
(mm)

C
in.
(mm)

D
in.
(mm)

E
in.
(mm)

M
in.

N
in.
(mm)


lbs.
(kg)


oz.-in.
(Nm)

 

5/16
(8)

.80
(20.3)

2.2
(55.9)

.75
(19.1)

.05
(1.27)

3/4-20
 

.35
(8.9)

20
(10)

1-3
(.007-.020)

Download

3/8
(10)

.80
(20.3)

2.2
(55.9)

.75
(19.1)

.05
(1.27)

3/4-20
 

.35
(8.9)

20
(10)

1-3
(.007-.020)
 
Outline Drawing – Kerk Acme Lead Screw Assembly with KHD Thread Mount Anti-backlash Nut