• NSK Σ Series Ball Screw Spline for Robots (Σ, ΣZ, ΣC, ΣCZ)
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NSK Σ Series Ball Screw Spline for Robots (Σ, ΣZ, ΣC, ΣCZ)

NSK Σ Series Ball Screw Spline for Robots (Σ, ΣZ, ΣC, ΣCZ)

Σ Series (Robotte) combines a ball screw groove and a ball spline groove on one shaft, with nuts, housing and support bearings in a single unit.

Key features

  • Shaft can move linearly and rotate, driven by two independently rotated nuts
  • Compact and lightweight; hollow shaft is standard
  • Ideal for the Z and Z-θ axes of SCARA and Cartesian robots
  • Variants Σ, ΣZ, ΣC and ΣCZ (standard and compact units)
  • Permissible d·n value 70,000 or less

Specifications

Shaft diameter 16-45 mm
Lead 10-40 mm
Ball screw recirculation Return tube
Ordering Made to order; full ref. no. assigned by NSK
Product type Ball Screws
Source NSK Precision Machine Components (CAT. E3162), p. B157-B168
Σ1610 d: 16 mm | Lead: 10 mm | Ca: 4710 N | C0a: 8110 N
Σ1632 d: 16 mm | Lead: 32 mm | Ca: 2990 N | C0a: 4870 N
Σ2010 d: 20 mm | Lead: 10 mm | Ca: 8210 N | C0a: 17500 N
Σ2020 d: 20 mm | Lead: 20 mm | Ca: 5290 N | C0a: 10300 N
Σ2040 d: 20 mm | Lead: 40 mm | Ca: 3360 N | C0a: 6170 N
Σ2510 d: 25 mm | Lead: 10 mm | Ca: 9110 N | C0a: 21900 N
Σ2520 d: 25 mm | Lead: 20 mm | Ca: 5870 N | C0a: 13200 N
Σ2525 d: 25 mm | Lead: 25 mm | Ca: 5870 N | C0a: 13200 N
Σ3220 d: 32 mm | Lead: 20 mm | Ca: 6540 N | C0a: 16800 N
Σ3232 d: 32 mm | Lead: 32 mm | Ca: 6540 N | C0a: 16800 N
Σ4020 d: 40 mm | Lead: 20 mm | Ca: 9770 N | C0a: 26300 N
Σ4040 d: 40 mm | Lead: 40 mm | Ca: 9770 N | C0a: 26300 N
Σ4520 d: 45 mm | Lead: 20 mm | Ca: 10300 N | C0a: 29700 N
Σ4540 d: 45 mm | Lead: 40 mm | Ca: 10300 N | C0a: 29700 N
ΣZ1610 d: 16 mm | Lead: 10 mm | Ca: 4710 N | C0a: 8110 N
ΣZ1632 d: 16 mm | Lead: 32 mm | Ca: 2990 N | C0a: 4870 N
ΣZ2010 d: 20 mm | Lead: 10 mm | Ca: 8210 N | C0a: 17500 N
ΣZ2020 d: 20 mm | Lead: 20 mm | Ca: 5290 N | C0a: 10300 N
ΣZ2040 d: 20 mm | Lead: 40 mm | Ca: 3360 N | C0a: 6170 N
ΣZ2510 d: 25 mm | Lead: 10 mm | Ca: 9110 N | C0a: 21900 N
ΣZ2520 d: 25 mm | Lead: 20 mm | Ca: 5870 N | C0a: 13200 N
ΣZ2525 d: 25 mm | Lead: 25 mm | Ca: 5870 N | C0a: 13200 N
ΣZ3220 d: 32 mm | Lead: 20 mm | Ca: 6540 N | C0a: 16800 N
ΣZ3232 d: 32 mm | Lead: 32 mm | Ca: 6540 N | C0a: 16800 N
ΣZ4020 d: 40 mm | Lead: 20 mm | Ca: 9770 N | C0a: 26300 N
ΣZ4040 d: 40 mm | Lead: 40 mm | Ca: 9770 N | C0a: 26300 N
ΣZ4520 d: 45 mm | Lead: 20 mm | Ca: 10300 N | C0a: 29700 N
ΣZ4540 d: 45 mm | Lead: 40 mm | Ca: 10300 N | C0a: 29700 N
ΣC1610 d: 16 mm | Lead: 10 mm | Ca: 4710 N | C0a: 8110 N
ΣC1632 d: 16 mm | Lead: 32 mm | Ca: 2990 N | C0a: 4870 N
ΣC2010 d: 20 mm | Lead: 10 mm | Ca: 8210 N | C0a: 17500 N
ΣC2020 d: 20 mm | Lead: 20 mm | Ca: 5290 N | C0a: 10300 N
ΣC2040 d: 20 mm | Lead: 40 mm | Ca: 3360 N | C0a: 6170 N
ΣC2510 d: 25 mm | Lead: 10 mm | Ca: 9110 N | C0a: 21900 N
ΣC2520 d: 25 mm | Lead: 20 mm | Ca: 5870 N | C0a: 13200 N
ΣC2525 d: 25 mm | Lead: 25 mm | Ca: 5870 N | C0a: 13200 N
ΣCZ1610 d: 16 mm | Lead: 10 mm | Ca: 4710 N | C0a: 8110 N
ΣCZ1632 d: 16 mm | Lead: 32 mm | Ca: 2990 N | C0a: 4870 N
ΣCZ2010 d: 20 mm | Lead: 10 mm | Ca: 8210 N | C0a: 17500 N
ΣCZ2020 d: 20 mm | Lead: 20 mm | Ca: 5290 N | C0a: 10300 N
ΣCZ2040 d: 20 mm | Lead: 40 mm | Ca: 3360 N | C0a: 6170 N
ΣCZ2510 d: 25 mm | Lead: 10 mm | Ca: 9110 N | C0a: 21900 N
ΣCZ2520 d: 25 mm | Lead: 20 mm | Ca: 5870 N | C0a: 13200 N
ΣCZ2525 d: 25 mm | Lead: 25 mm | Ca: 5870 N | C0a: 13200 N
Ball ScrewsNSK
44 product codes available in this family
Sourced direct from KoreaExport-ready supplyCompetitive pricing
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NSK Σ Series Ball Screw Spline for Robots (Σ, ΣZ, ΣC, ΣCZ)

Brand NSK·Ball Screws

Available part numbers (44)

Σ1610, Σ1632, Σ2010, Σ2020, Σ2040, Σ2510, Σ2520, Σ2525, Σ3220, Σ3232 + 34 more — see full table ↓

How to order

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Product codes & specifications
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Product codeSpec
Σ1610d: 16 mm | Lead: 10 mm | Ca: 4710 N | C0a: 8110 N
Σ1632d: 16 mm | Lead: 32 mm | Ca: 2990 N | C0a: 4870 N
Σ2010d: 20 mm | Lead: 10 mm | Ca: 8210 N | C0a: 17500 N
Σ2020d: 20 mm | Lead: 20 mm | Ca: 5290 N | C0a: 10300 N
Σ2040d: 20 mm | Lead: 40 mm | Ca: 3360 N | C0a: 6170 N
Σ2510d: 25 mm | Lead: 10 mm | Ca: 9110 N | C0a: 21900 N
Σ2520d: 25 mm | Lead: 20 mm | Ca: 5870 N | C0a: 13200 N
Σ2525d: 25 mm | Lead: 25 mm | Ca: 5870 N | C0a: 13200 N
Σ3220d: 32 mm | Lead: 20 mm | Ca: 6540 N | C0a: 16800 N
Σ3232d: 32 mm | Lead: 32 mm | Ca: 6540 N | C0a: 16800 N
Σ4020d: 40 mm | Lead: 20 mm | Ca: 9770 N | C0a: 26300 N
Σ4040d: 40 mm | Lead: 40 mm | Ca: 9770 N | C0a: 26300 N
Σ4520d: 45 mm | Lead: 20 mm | Ca: 10300 N | C0a: 29700 N
Σ4540d: 45 mm | Lead: 40 mm | Ca: 10300 N | C0a: 29700 N
ΣZ1610d: 16 mm | Lead: 10 mm | Ca: 4710 N | C0a: 8110 N
ΣZ1632d: 16 mm | Lead: 32 mm | Ca: 2990 N | C0a: 4870 N
ΣZ2010d: 20 mm | Lead: 10 mm | Ca: 8210 N | C0a: 17500 N
ΣZ2020d: 20 mm | Lead: 20 mm | Ca: 5290 N | C0a: 10300 N
ΣZ2040d: 20 mm | Lead: 40 mm | Ca: 3360 N | C0a: 6170 N
ΣZ2510d: 25 mm | Lead: 10 mm | Ca: 9110 N | C0a: 21900 N
ΣZ2520d: 25 mm | Lead: 20 mm | Ca: 5870 N | C0a: 13200 N
ΣZ2525d: 25 mm | Lead: 25 mm | Ca: 5870 N | C0a: 13200 N
ΣZ3220d: 32 mm | Lead: 20 mm | Ca: 6540 N | C0a: 16800 N
ΣZ3232d: 32 mm | Lead: 32 mm | Ca: 6540 N | C0a: 16800 N
ΣZ4020d: 40 mm | Lead: 20 mm | Ca: 9770 N | C0a: 26300 N
ΣZ4040d: 40 mm | Lead: 40 mm | Ca: 9770 N | C0a: 26300 N
ΣZ4520d: 45 mm | Lead: 20 mm | Ca: 10300 N | C0a: 29700 N
ΣZ4540d: 45 mm | Lead: 40 mm | Ca: 10300 N | C0a: 29700 N
ΣC1610d: 16 mm | Lead: 10 mm | Ca: 4710 N | C0a: 8110 N
ΣC1632d: 16 mm | Lead: 32 mm | Ca: 2990 N | C0a: 4870 N
ΣC2010d: 20 mm | Lead: 10 mm | Ca: 8210 N | C0a: 17500 N
ΣC2020d: 20 mm | Lead: 20 mm | Ca: 5290 N | C0a: 10300 N
ΣC2040d: 20 mm | Lead: 40 mm | Ca: 3360 N | C0a: 6170 N
ΣC2510d: 25 mm | Lead: 10 mm | Ca: 9110 N | C0a: 21900 N
ΣC2520d: 25 mm | Lead: 20 mm | Ca: 5870 N | C0a: 13200 N
ΣC2525d: 25 mm | Lead: 25 mm | Ca: 5870 N | C0a: 13200 N
ΣCZ1610d: 16 mm | Lead: 10 mm | Ca: 4710 N | C0a: 8110 N
ΣCZ1632d: 16 mm | Lead: 32 mm | Ca: 2990 N | C0a: 4870 N
ΣCZ2010d: 20 mm | Lead: 10 mm | Ca: 8210 N | C0a: 17500 N
ΣCZ2020d: 20 mm | Lead: 20 mm | Ca: 5290 N | C0a: 10300 N
ΣCZ2040d: 20 mm | Lead: 40 mm | Ca: 3360 N | C0a: 6170 N
ΣCZ2510d: 25 mm | Lead: 10 mm | Ca: 9110 N | C0a: 21900 N
ΣCZ2520d: 25 mm | Lead: 20 mm | Ca: 5870 N | C0a: 13200 N
ΣCZ2525d: 25 mm | Lead: 25 mm | Ca: 5870 N | C0a: 13200 N

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