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ZBX SERIES - FLANGE MOUNT ZBX SERIES - THREAD MOUNT

ZBX SERIES ANTI-BACKLASH NUT - for Lighter Loads

 
 

Part Number Construction

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

The patented Kerk® ZBX Series anti-backlash assembly offers an effective linear actuator for design operations requiring precise positional accuracy and repeatability, with minimum cost.

The standard ZBX unit utilizes a patented self-lubricating polyacetal nut radially preloaded on 303 stainless steel acme lead screw.

The ZBX assembly, through its unique transfer of loads, offers exceptional torque consistency and repeatability when traversing in either direction. The inherent damping qualities of the ZBX design make it ideally suited for vertical applications requiring noise or vibration control.

End machining to customer specifications and Kerkote® TFE screw coating are optional, as are designs for special operating configurations or environments.

LEAD SCREWS | COMPARISON CHART | SCREW SIZE LIST | NUT FEATURE MATRIX | NUT STYLES

ZBX 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)

 

1/4
(6)

.50
(12.7)

1.0
(26)

1.0
(25.4)

.18
(4.6)

.140
(3.6)

.750
(19.1)

5
(2.3)

.5-3
(.004-.02)

Download

5/16
(8)

.70
(17.8)

1.9
(48)

1.5
(38.1)

.18
(4.6)

.200
(5.08)

1.125
(28.6)

10
(5)

1-5
(.007-.03)

3/8
(10)

.70
(17.7)

1.9
(48)

1.5
(38.1)

.18
(4.6)

.200
(5.08)

1.125
(28.6)

10
(5)

1-5
(.007-.03)

7/16
(11)

.80
(20.3)

1.9
(48)

1.5
(38.1)

.18
(4.6)

.200
(5.08)

1.125
(28.6)

15
(7)

2-6
(.014-.04)

1/2
(13)

.89
(22.6)

2.0
(51)

1.62
(41.2)

.26
(6.6)

.200
(5.08)

1.250
(31.8)

25
(11)

3-7
(.02-.05)

5/8
(16)

1.06
(26.92)

2.0
(51)

1.75
(44.5)

.26
(6.6)

.200
(5.08)

1.375
(34.9)

35
(16)

4-8
(.028-.055)

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

 

1/4
(6)

.50
(12.7)

1.3
(33)

.80
(20.3)

.22
(5.6)

5/8-18
 

.16
(4.1)

5
(2.3)

.5-3
(.004-.02)

Download

5/16
(8)

.70
(17.8)

2.2
(56)

1.00
(25.4)

.17
(4.3)

5/8-18
 

.38
(9.7)

10
(5)

1-5
(.007-.03)

3/8
(10)

.70
(17.8)

2.2
(56)

1.00
(25.4)

.17
(4.3)

5/8-18
 

.38
(9.7)

10
(5)

1-5
(.007-.03)

7/16
(11)

.80
(20.3)

2.3
(59)

1.00
(25.4)

.12
(3.1)

15/16-16
 

.38
(9.7)

15
(7)

2-6
(.015-.04)

1/2
(13)

.89
(22.6)

2.3
(59)

1.02
(25.9)

.12
(3.1)

15/16-16
 

.38
(9.7)

25
(11)

3-7
(.02-.05)

5/8
(16)

1.06
(26.9)

2.4
(61)

1.06
(26.9)

.15
(3.8)

15/16-16
 

.50
(12.7)

35
(16)

4-8
(.028-.055)

Outline Drawing – Kerk Acme Lead Screw Assembly with ZBX Thread Mount Anti-backlash Nut