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  • Special Screws
  • Vibration Resistance

Ribbed Lock Washers

SWR

  • Vibration resistant treatment

Dimension Drawing

SWRRibbed Lock Washers寸法図

Specs/CAD

Unit : mm

Part Number Nominal d D t h Qty per Pack Mass
(g)
CAD
Download
RFQ
SWR-2 2 2.20~+0.3 4-0.3~0 0.35 0.6 10 0.02 CAD RFQ
SWR-2.5 2.5 2.70~+0.3 4.8-0.3~0 0.45 0.9 10 0.04 CAD RFQ
SWR-3 3 3.20~+0.3 5.5-0.3~0 0.45 0.9 20 0.05 CAD RFQ
SWR-4 4 4.30~+0.3 7-0.36~0 0.5 1 20 0.08 CAD RFQ
SWR-5 5 5.30~+0.3 9-0.36~0 0.6 1.1 20 0.14 CAD RFQ
SWR-6 6 6.40~+0.36 10-0.36~0 0.7 1.2 20 0.23 CAD RFQ
SWR-8 8 8.40~+0.36 13-0.43~0 0.8 1.4 10 0.43 CAD RFQ
SWR-10 10 10.50~+0.43 16-0.43~0 1 1.6 10 0.82 CAD RFQ
SWR-12 12 130~+0.43 18-0.43~0 1.1 1.7 10 0.89 CAD RFQ
SWR-16 16 170~+0.43 24-0.52~0 1.3 2.1 10 2 CAD RFQ
SWR-20 20 210~+0.52 30-0.62~0 1.5 2.4 5 3.4 CAD RFQ

●When purchasing less volume than one full bag, a separate handling fee is charged. For details, see the Sold Separately Service.


Related Services

Material/Finish

SWR
Main Body Spring Steel(Hardness: 380-450 HV)
Ferrosoferric Oxide Film (Black)

Application

Vibration Resistant

Characteristics

  • Ribs on both sides of the washer hook onto the bolt bearing surface and intended attachment section to prevent looseness due to vibration.
  • Washers for loosing prevention. For connecting locations that cannot use other means such as adhesives.
  • More effective for loosing prevention than standard spring washers.

Precautions for Use

Ribs may not hook into some connecting locations, depending on their material. Confirm in advance that the ribs will hook.

Mounting Method

SWRRibbed Lock Washers


Vibration Test Comparison

Test Hexagon Screws:DIN933-8.8-M10-35、Vibration:15Hz、Amplitude:0.5mm

SWRRibbed Lock Washers


Product List

Click here to see Vibration Resistance

Click here to see Special Screws