top_logo

Servo-Drive Lead Screws, Nuts, Antibacklash Nuts and various Nuts Assemblies

Lead Screw and Nut Assemblies

Lead Screws, Nuts, Antibacklash Nuts and various Nuts Assemblies:

Servo-Drive offers 5 different styles of nuts from free wheeling non antibacklash nuts to a user adjustable anti-backlash nut. All of these nut styles are available on screws ranging from 3.2mm to 15.9mm in diameter with leads as fine as 0.3mm up to fast leads as high as 31.75mm. Contact Servo-Drive today for your custom linear motion solution.

Our standard offering is a proprietary self-lubricating polyacetal thermoplastic that offers the following traits:

  • Low coefficient of friction
  • Good mechanical strength
  • Excellent abrasion resistance
  • Excellent impact resistance
  • Long life
  • Excellent chemical compatibility


Industry definitions: Pitch, Lead, Number of Starts...

lead screw N nut

Lead Screw with "N" Style nut - Standard Normal Nut (with backlash)

Lead Screw N style nut
Part NumberDiameterLeadStartsPitch
42-347-14,760,6410,64
42-347-24,761,2711,27
42-347-34,762,5421,27
42-347-44,765,0841,27
42-347-54,7610,1681,27
42-347-65,546,116,1
42-347-75,541,2211,22
42-347-85,541,5911,59
42-347-95,542,4421,22
42-347-105,544,8841,22
42-347-115,549,7581,22
42-347-126,350,6410,64
42-347-136,350,7910,79
42-347-146,351,2711,27
42-347-156,351,5911,59
42-347-166,352,5412,54
42-347-176,353,1821,59
42-347-186,356,3541,59
42-347-196,3512,781,59
42-347-206,3519,0544,76
42-347-216,3525,483,18
42-343-19,530,6410,64
42-343-29,531,0611,06
42-343-39,531,2711,27
42-343-49,531,5911,59
42-343-59,532,1212,12
42-343-69,532,5412,54
42-343-79,534,2322,12
42-343-89,535,0822,54
42-343-99,5310,1642,54
42-343-109,5330,4856,1
42-343-119,53515

Lead Screw Dimensions

lead screw N nut
Screw DiameterNut DiameterNut LengthThreadThread LengthStatic LoadDesign Load
ABCTHDkgkg
4,815,8810,929/16-18UNF
(no metric size)
6,13216
5,6-6,415,8810,929/16-18UNF
(no metric size)
6,14623
9,519,0517,275/8-18UNF
(no metric size)
8,136834
lead screw flange adapter
> > > Flange adapter for metric mounting

Lead Screw with "W" and "C" Style nut - Wedge style and Compression type Antibacklash Nut

Lead Screw W style nut
Part NumberDiameterLeadStartsPitch
42-345-14,760,6410,64
42-345-24,761,2711,27
42-345-34,762,5421,27
42-345-44,765,0841,27
42-345-54,7610,1681,27
42-345-65,546,116,1
42-345-75,541,2211,22
42-345-85,541,5911,59
42-345-95,542,4421,22
42-345-105,544,8841,22
42-345-115,549,7581,22
42-345-126,350,6410,64
42-345-136,350,7910,79
42-345-146,351,2711,27
42-345-156,351,5911,59
42-345-166,352,5412,54
42-345-176,353,1821,59
42-345-186,356,3541,59
42-345-196,3512,781,59
42-345-206,3519,0544,76
42-345-216,3525,483,18
42-321-19,530,6410,64
42-321-29,531,0611,06
42-321-39,531,2711,27
42-321-49,531,5911,59
42-321-59,532,1212,12
42-321-69,532,5412,54
42-321-79,534,2322,12
42-321-89,535,0822,54
42-321-99,5310,1642,54
42-321-109,5330,4856,1
42-321-119,53515

Lead Screw type Dimensions

lead screw N nut

Lead Screw "C" type Dimensions

Screw DiameterNut DiameterNut LengthThreadThread LengthDesign LoadDrag Torque
ABCTHDkgNcm
4,8-6,415,8826,619/16-18UNF (no metric size)6,12,27 (4,54*)2,8 max
9,519,0533,535/8-18UNF (no metric size)8,134,54 (11,34*)3,5 max
*"W" type nut has same dimensions only higher design load lead screw flange adapter
> > > Flange adapter for metric mounting


Lead Screw with "T" Style nut - Torsion adjustable Antibacklash nut

Nut Assembly Mechanismus can be rotated to set up Torsional Force inside Nut Assembly that sets up Antibacklash Force. It allowed to set up Antibacklash Force directly in Machine to exact needed value.

Lead Screw T style nut
Part NumberDiameterLeadStartsPitch
42-349-14,760,6410,64
42-349-24,761,2711,27
42-349-34,762,5421,27
42-349-44,765,0841,27
42-349-54,7610,1681,27
42-349-65,546,116,1
42-349-75,541,2211,22
42-349-85,541,5911,59
42-349-95,542,4421,22
42-349-105,544,8841,22
42-349-115,549,7581,22
42-349-126,350,6410,64
42-349-136,350,7910,79
42-349-146,351,2711,27
42-349-156,351,5911,59
42-349-166,352,5412,54
42-349-176,353,1821,59
42-349-186,356,3541,59
42-349-196,3512,781,59
42-349-206,3519,0544,76
42-349-216,3525,483,18
42-341-19,530,6410,64
42-341-29,531,0611,06
42-341-39,531,2711,27
42-341-49,531,5911,59
42-341-59,532,1212,12
42-341-69,532,5412,54
42-341-79,534,2322,12
42-341-89,535,0822,54
42-341-99,5310,1642,54
42-341-109,5330,4856,1
42-341-119,53515

Lead Screw type Dimensions

lead screw N nut

Lead Screw "C" type Dimensions

Screw Diam.Nut Diam.Nut LengthThreadThread LengthDesign LoadDrag Torque
ABCTHDkgNcm
4,8 - 6,415,8827,439/16 - 18UNF (no metric size)6,16,80,53 - 2,82 (adjustable)
9,519,0538,615/8 - 18UNF (no metric size)8,1313,610,53 - 2,82 (adjustable)
lead screw flange adapter
> > > Flange adapter for metric mounting


 

Lead Screw Nut Flange Adapter for Metric Mounting

lead screw flange adapter
Screw DiameterBold Hole CircleBolt HoleFlange ThicknessPilot LengthPilotEfective Flange DiameterMounting Thread
-ABCDEF-
4,8-6,422,233,634,062,0415,8828,589/16-18UNF (no metric size)
9,528,585,085,083,0519,05385/8-18UNF (no metric size)

End Matching

Any custome shape or feature on the ends of lead screw. Some common examples can be seen below: custom lead screw ends

N style Nut

lead_screw_nut

C style Nut

lead_screw_nut lead_screw_nut

W style Nut

lead_screw_nut lead_screw_nut

T style Nut

lead_screw_nut lead_screw_nut
image