• NSK WSK Coolant Seal Units for Hollow Shaft Ball Screws
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NSK WSK Coolant Seal Units for Hollow Shaft Ball Screws

NSK WSK Coolant Seal Units for Hollow Shaft Ball Screws

NSK WSK seal units are rotary joints that feed coolant into hollow ball screw shafts for forced cooling on high-precision machine tools.

Key features

  • Rotary coolant joint for hollow ball screw shafts
  • A type mounts at the shaft end
  • B type mounts on the shaft outer surface
  • Rc 1/2 coolant port with drain
  • Use with NSK heavy-load support units

Specifications

Coolant port Rc 1/2
Availability By order
Brand NSK
Product type Bearing Accessories
Listed models 6
Source NSK Linear Guides / Ball Screws / Monocarriers catalogue (Precision Machine Components), p. B147-B148
WSK20A-01 Type: A (shaft end) | Shaft d: 20 mm | Outside D: 57 mm | Length L: 56 mm | Bolt: M6
WSK25A-01 Type: A (shaft end) | Shaft d: 25 mm | Outside D: 57 mm | Length L: 56 mm | Bolt: M6
WSK32A-01 Type: A (shaft end) | Shaft d: 32 mm | Outside D: 69 mm | Length L: 61 mm | Bolt: M6
WSK32B-01 Type: B (shaft surface) | Shaft d: 32 mm | Outside D: 57 mm | Length L1: 46 mm | Bolt: M6
WSK40B-01 Type: B (shaft surface) | Shaft d: 40 mm | Outside D: 57 mm | Length L1: 46 mm | Bolt: M6
WSK50B-01 Type: B (shaft surface) | Shaft d: 50 mm | Outside D: 69 mm | Length L1: 49 mm | Bolt: M6
Bearing AccessoriesNSK
6 product codes available in this family
Sourced direct from KoreaExport-ready supplyCompetitive pricing
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NSK WSK Coolant Seal Units for Hollow Shaft Ball Screws

Brand NSK·Bearing Accessories

Available part numbers (6)

WSK20A-01, WSK25A-01, WSK32A-01, WSK32B-01, WSK40B-01, WSK50B-01

How to order

Send the NSK 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
WSK20A-01Type: A (shaft end) | Shaft d: 20 mm | Outside D: 57 mm | Length L: 56 mm | Bolt: M6
WSK25A-01Type: A (shaft end) | Shaft d: 25 mm | Outside D: 57 mm | Length L: 56 mm | Bolt: M6
WSK32A-01Type: A (shaft end) | Shaft d: 32 mm | Outside D: 69 mm | Length L: 61 mm | Bolt: M6
WSK32B-01Type: B (shaft surface) | Shaft d: 32 mm | Outside D: 57 mm | Length L1: 46 mm | Bolt: M6
WSK40B-01Type: B (shaft surface) | Shaft d: 40 mm | Outside D: 57 mm | Length L1: 46 mm | Bolt: M6
WSK50B-01Type: B (shaft surface) | Shaft d: 50 mm | Outside D: 69 mm | Length L1: 49 mm | Bolt: M6

Need a different model, or a part not listed here? Send us your parts list →

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