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dryspin dryspin
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trapezoidal dryspin TR | Lead screw nuts | Product range trapezoidal
thread thread
Anti-backlash lead screw nuts, cylindrical/with flange
Order key
b1
Type d2 b1 Thread

d1
d2
Options:
Cylindrical (form S) Form S: Cylindrical

d2 Form F: With flange

b1 iglidur ® material Direction of rotation Anti-backlash Outer Ø [mm] Trapezoidal thread Diameter [mm]
In the case of this lead screw nut, an elastomer ring applies a force on an insert with a b2 Length [mm]
matching thread, which is pressed into the threads of the lead screw. It is important that Form S Metric Pitch
d1 d5
this pretensioning is not present over the entire length or the entire circumference. This
d3
ensures low axial clearance in only a small range. J High efficiency at all speeds
With flange (form F)
R Vibration-dampening and vibration-inhibiting
Technical data - cylindrical design Dimensions [mm] - cylindrical design

Thread Direction of rotation Effective Pitch Max. stat. axial F [N] d1 156) d2 156) b1 156) Weight [g] Part No.
Right Left supporting surface P iglidur ® iglidur ®
Cylindrical - form S [mm ] [mm] J R J R
2
Tr8x1.5 ● – 228 1.5 683 342 8 22 20 11.8 11.0 SRM-AB-2220-TR8X1.5
Tr10x2 ● ● 283 2 848 424 10 22 20 11.0 10.2 S M-AB-2220-TR10X2
Tr12x3 ● – 396 3 1,188 594 12 26 24 17.2 16.0 SRM-AB-2624-TR12X3
Tr16x2 ● – 613 2 1,838 919 16 36 32 44.8 41.9 SRM-AB-3632-TR16X2 New
Tr16x4 ● – 613 4 1,838 919 16 36 32 44.8 41.9 SRM-AB-3632-TR16X4
Tr18x4 ● ● 905 4 2,714 1,357 18 40 36 59.7 55.8 S M-AB-4036-TR18X4
Tr20x4 ● ● 1,131 4 3,393 1,696 20 45 40 83.1 77.7 S M-AB-4540-TR20X4
Tr24x5 ● – 1,621 5 4,863 2,432 24 50 48 112.1 104.8 SRM-AB-5048-TR24X5

Technical data - with flange Dimensions [mm] - with flange
Thread Direction of rotation Effective Pitch Max. stat. axial F [N] d1 156) d2 156) d3 d4 d5 b1 156) b2 Weight [g] Part No.
Right Left supporting surface P iglidur ® iglidur ®
With flange - form F [mm ] [mm] J R J R
2
Tr8x1.5 ● – 285 1.5 683 342 8 20 36 28 4 20 8 17.5 16.3 FRM-AB-2020-TR8X1.5 New
Tr10x2 ● ● 353 2 1,060 530 10 25 42 34 5 25 10 28.9 27.0 F M-AB-2525-TR10X2
Tr10x3 ● – 334 3 1,001 501 10 25 42 34 5 25 10 28.7 26.8 FRM-AB-2525-TR10X3
Tr12x3 ● – 396 3 1,188 594 12 28 48 35 5 35 12 30.3 28.3 FRM-AB-2835-TR12X3
Tr14x4 ● ● 471 4 1,414 707 14 28 48 38 6 35 12 45.2 42.1 F M-AB-2835-TR14X4
Tr16x2 ● ● 613 2 1,838 919 16 28 48 38 6 35 12 45.0 42.0 F M-AB-2835-TR16X2
Tr16x4 ● ● 445 4 1,336 668 16 28 48 38 6 35 12 42.6 39.7 F M-AB-2835-TR16X4
Tr18x4 ● ● 905 4 2,714 1,357 18 28 48 38 6 35 12 43.5 40.5 F M-AB-2835-TR18X4
Tr18x8P4 ● – 1,002 8P4 2,243 1,153 18 28 48 38 6 35 12 43.5 40.5 FRM-AB-2835-TR18X8P4 New
Tr20x4 ● ● 1,131 4 3,393 1,696 20 32 55 45 7 44 12 62.5 58.3 F M-AB-3244-TR20X4
Tr20x8P4 ● – 1,255 8P4 3,172 1,442 20 32 55 45 7 44 12 62.5 58.3 FRM-AB-3244-TR20X8P4 New
Tr24x5 ● ● 1,621 5 4,863 2,432 24 32 55 45 7 44 12 49.7 46.4 F M-AB-3244-TR24X5
156) Tolerances according to DIN ISO 2768-1, tolerance class m (medium)
Backlash is created on the lead screw drive by the axial clearance. By adding a radial pre-load, vibrations
ASEAN 09/2023 ASEAN 09/2023 www.igus-asean.com/assembly-DST-AB
are significantly reduced. Installation instructions

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