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THK Ball Screw Nut DC (Key Groove Type)

THK Ball Screw Nut DC (Key Groove Type)

THK DC type Ball Screw Nut, key groove mounting design.

Key features

  • Outer diameter D = 22~68mm, nut length 22~67mm. 13 sizes DC12~DC50
  • Compatible with CS series ball screw shafts (rolled type T; ground type K available on order)
  • Dynamic allowable thrust contact pressure 9.8 N/mm²

Specifications

Mounting Type Key groove
Note Ground shaft (K type) available on order; rolled shaft (T type) is standard
DC12 THK Ball Screw Nut DC12 (key groove), D=22mm, L=22mm | Outer Diameter (D): 22 mm (0/-0.052) | Nut Length (L): 22 mm | Key Width (b): 4 mm | Key Depth (t): 2.0 mm | Key Length (ℓ): 16 mm | Mounting Type: Key groove | Compatible Shaft: CS12 | Note: Ground shaft (K type) available on order; rolled shaft (T type) is standard
DC14 THK Ball Screw Nut DC14 (key groove), D=22mm, L=22mm | Outer Diameter (D): 22 mm (0/-0.052) | Nut Length (L): 22 mm | Key Width (b): 4 mm | Key Depth (t): 2.0 mm | Key Length (ℓ): 16 mm | Mounting Type: Key groove | Compatible Shaft: CS14 | Note: Ground shaft (K type) available on order; rolled shaft (T type) is standard
DC16 THK Ball Screw Nut DC16 (key groove), D=28mm, L=26mm | Outer Diameter (D): 28 mm (0/-0.052) | Nut Length (L): 26 mm | Key Width (b): 5 mm | Key Depth (t): 2.5 mm | Key Length (ℓ): 18 mm | Mounting Type: Key groove | Compatible Shaft: CS16 | Note: Ground shaft (K type) available on order; rolled shaft (T type) is standard
DC18 THK Ball Screw Nut DC18 (key groove), D=32mm, L=31mm | Outer Diameter (D): 32 mm (0/-0.062) | Nut Length (L): 31 mm | Key Width (b): 7 mm | Key Depth (t): 2.5 mm | Key Length (ℓ): 22 mm | Mounting Type: Key groove | Compatible Shaft: CS18 | Note: Ground shaft (K type) available on order; rolled shaft (T type) is standard
DC20 THK Ball Screw Nut DC20 (key groove), D=32mm, L=31mm | Outer Diameter (D): 32 mm (0/-0.062) | Nut Length (L): 31 mm | Key Width (b): 7 mm | Key Depth (t): 2.5 mm | Key Length (ℓ): 22 mm | Mounting Type: Key groove | Compatible Shaft: CS20 | Note: Ground shaft (K type) available on order; rolled shaft (T type) is standard
DC22 THK Ball Screw Nut DC22 (key groove), D=36mm, L=40mm | Outer Diameter (D): 36 mm (0/-0.062) | Nut Length (L): 40 mm | Key Width (b): 7 mm | Key Depth (t): 2.5 mm | Key Length (ℓ): 26 mm | Mounting Type: Key groove | Compatible Shaft: CS22 | Note: Ground shaft (K type) available on order; rolled shaft (T type) is standard
DC25 THK Ball Screw Nut DC25 (key groove), D=36mm, L=40mm | Outer Diameter (D): 36 mm (0/-0.062) | Nut Length (L): 40 mm | Key Width (b): 7 mm | Key Depth (t): 2.5 mm | Key Length (ℓ): 26 mm | Mounting Type: Key groove | Compatible Shaft: CS25 | Note: Ground shaft (K type) available on order; rolled shaft (T type) is standard
DC28 THK Ball Screw Nut DC28 (key groove), D=44mm, L=45mm | Outer Diameter (D): 44 mm (0/-0.062) | Nut Length (L): 45 mm | Key Width (b): 10 mm | Key Depth (t): 4.0 mm | Key Length (ℓ): 32 mm | Mounting Type: Key groove | Compatible Shaft: CS28 | Note: Ground shaft (K type) available on order; rolled shaft (T type) is standard
DC32 THK Ball Screw Nut DC32 (key groove), D=44mm, L=45mm | Outer Diameter (D): 44 mm (0/-0.062) | Nut Length (L): 45 mm | Key Width (b): 10 mm | Key Depth (t): 4.0 mm | Key Length (ℓ): 32 mm | Mounting Type: Key groove | Compatible Shaft: CS32 | Note: Ground shaft (K type) available on order; rolled shaft (T type) is standard
DC36 THK Ball Screw Nut DC36 (key groove), D=52mm, L=49mm | Outer Diameter (D): 52 mm (0/-0.074) | Nut Length (L): 49 mm | Key Width (b): 12 mm | Key Depth (t): 4.5 mm | Key Length (ℓ): 40 mm | Mounting Type: Key groove | Compatible Shaft: CS36 | Note: Ground shaft (K type) available on order; rolled shaft (T type) is standard
DC40 THK Ball Screw Nut DC40 (key groove), D=58mm, L=57mm | Outer Diameter (D): 58 mm (0/-0.074) | Nut Length (L): 57 mm | Key Width (b): 15 mm | Key Depth (t): 5.0 mm | Key Length (ℓ): 42 mm | Mounting Type: Key groove | Compatible Shaft: CS40 | Note: Ground shaft (K type) available on order; rolled shaft (T type) is standard
DC45 THK Ball Screw Nut DC45 (key groove), D=64mm, L=62mm | Outer Diameter (D): 64 mm (0/-0.074) | Nut Length (L): 62 mm | Key Width (b): 15 mm | Key Depth (t): 5.0 mm | Key Length (ℓ): 48 mm | Mounting Type: Key groove | Compatible Shaft: CS45 | Note: Ground shaft (K type) available on order; rolled shaft (T type) is standard
DC50 THK Ball Screw Nut DC50 (key groove), D=68mm, L=67mm | Outer Diameter (D): 68 mm (0/-0.074) | Nut Length (L): 67 mm | Key Width (b): 15 mm | Key Depth (t): 5.0 mm | Key Length (ℓ): 52 mm | Mounting Type: Key groove | Compatible Shaft: CS50 | Note: Ground shaft (K type) available on order; rolled shaft (T type) is standard
Ball ScrewsTHK
13 product codes available in this family
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THK Ball Screw Nut DC (Key Groove Type)

Brand THK·Ball Screws

Available part numbers (13)

DC12, DC14, DC16, DC18, DC20, DC22, DC25, DC28, DC32, DC36 + 3 more — see full table ↓

How to order

Send the THK part numbers and quantities through our RFQ form or to info@prosourcemro.com. We confirm price, availability and lead time within 1 business day — no account needed.

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Product codes & specifications
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Product codeSpec
DC12THK Ball Screw Nut DC12 (key groove), D=22mm, L=22mm | Outer Diameter (D): 22 mm (0/-0.052) | Nut Length (L): 22 mm | Key Width (b): 4 mm | Key Depth (t): 2.0 mm | Key Length (ℓ): 16 mm | Mounting Type: Key groove | Compatible Shaft: CS12 | Note: Ground shaft (K type) available on order; rolled shaft (T type) is standard
DC14THK Ball Screw Nut DC14 (key groove), D=22mm, L=22mm | Outer Diameter (D): 22 mm (0/-0.052) | Nut Length (L): 22 mm | Key Width (b): 4 mm | Key Depth (t): 2.0 mm | Key Length (ℓ): 16 mm | Mounting Type: Key groove | Compatible Shaft: CS14 | Note: Ground shaft (K type) available on order; rolled shaft (T type) is standard
DC16THK Ball Screw Nut DC16 (key groove), D=28mm, L=26mm | Outer Diameter (D): 28 mm (0/-0.052) | Nut Length (L): 26 mm | Key Width (b): 5 mm | Key Depth (t): 2.5 mm | Key Length (ℓ): 18 mm | Mounting Type: Key groove | Compatible Shaft: CS16 | Note: Ground shaft (K type) available on order; rolled shaft (T type) is standard
DC18THK Ball Screw Nut DC18 (key groove), D=32mm, L=31mm | Outer Diameter (D): 32 mm (0/-0.062) | Nut Length (L): 31 mm | Key Width (b): 7 mm | Key Depth (t): 2.5 mm | Key Length (ℓ): 22 mm | Mounting Type: Key groove | Compatible Shaft: CS18 | Note: Ground shaft (K type) available on order; rolled shaft (T type) is standard
DC20THK Ball Screw Nut DC20 (key groove), D=32mm, L=31mm | Outer Diameter (D): 32 mm (0/-0.062) | Nut Length (L): 31 mm | Key Width (b): 7 mm | Key Depth (t): 2.5 mm | Key Length (ℓ): 22 mm | Mounting Type: Key groove | Compatible Shaft: CS20 | Note: Ground shaft (K type) available on order; rolled shaft (T type) is standard
DC22THK Ball Screw Nut DC22 (key groove), D=36mm, L=40mm | Outer Diameter (D): 36 mm (0/-0.062) | Nut Length (L): 40 mm | Key Width (b): 7 mm | Key Depth (t): 2.5 mm | Key Length (ℓ): 26 mm | Mounting Type: Key groove | Compatible Shaft: CS22 | Note: Ground shaft (K type) available on order; rolled shaft (T type) is standard
DC25THK Ball Screw Nut DC25 (key groove), D=36mm, L=40mm | Outer Diameter (D): 36 mm (0/-0.062) | Nut Length (L): 40 mm | Key Width (b): 7 mm | Key Depth (t): 2.5 mm | Key Length (ℓ): 26 mm | Mounting Type: Key groove | Compatible Shaft: CS25 | Note: Ground shaft (K type) available on order; rolled shaft (T type) is standard
DC28THK Ball Screw Nut DC28 (key groove), D=44mm, L=45mm | Outer Diameter (D): 44 mm (0/-0.062) | Nut Length (L): 45 mm | Key Width (b): 10 mm | Key Depth (t): 4.0 mm | Key Length (ℓ): 32 mm | Mounting Type: Key groove | Compatible Shaft: CS28 | Note: Ground shaft (K type) available on order; rolled shaft (T type) is standard
DC32THK Ball Screw Nut DC32 (key groove), D=44mm, L=45mm | Outer Diameter (D): 44 mm (0/-0.062) | Nut Length (L): 45 mm | Key Width (b): 10 mm | Key Depth (t): 4.0 mm | Key Length (ℓ): 32 mm | Mounting Type: Key groove | Compatible Shaft: CS32 | Note: Ground shaft (K type) available on order; rolled shaft (T type) is standard
DC36THK Ball Screw Nut DC36 (key groove), D=52mm, L=49mm | Outer Diameter (D): 52 mm (0/-0.074) | Nut Length (L): 49 mm | Key Width (b): 12 mm | Key Depth (t): 4.5 mm | Key Length (ℓ): 40 mm | Mounting Type: Key groove | Compatible Shaft: CS36 | Note: Ground shaft (K type) available on order; rolled shaft (T type) is standard
DC40THK Ball Screw Nut DC40 (key groove), D=58mm, L=57mm | Outer Diameter (D): 58 mm (0/-0.074) | Nut Length (L): 57 mm | Key Width (b): 15 mm | Key Depth (t): 5.0 mm | Key Length (ℓ): 42 mm | Mounting Type: Key groove | Compatible Shaft: CS40 | Note: Ground shaft (K type) available on order; rolled shaft (T type) is standard
DC45THK Ball Screw Nut DC45 (key groove), D=64mm, L=62mm | Outer Diameter (D): 64 mm (0/-0.074) | Nut Length (L): 62 mm | Key Width (b): 15 mm | Key Depth (t): 5.0 mm | Key Length (ℓ): 48 mm | Mounting Type: Key groove | Compatible Shaft: CS45 | Note: Ground shaft (K type) available on order; rolled shaft (T type) is standard
DC50THK Ball Screw Nut DC50 (key groove), D=68mm, L=67mm | Outer Diameter (D): 68 mm (0/-0.074) | Nut Length (L): 67 mm | Key Width (b): 15 mm | Key Depth (t): 5.0 mm | Key Length (ℓ): 52 mm | Mounting Type: Key groove | Compatible Shaft: CS50 | Note: Ground shaft (K type) available on order; rolled shaft (T type) is standard

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