Daihan Stirrer Guide/Seal ptfe 34/45, 8mm SL.ADA407

PTFE stirrer guide/seal for laboratory use, constructed of PTFE and designed to provide a sealed, low-friction bearing for a stirring shaft. It accepts an 8 mm shaft and fits a 34/45 ground-glass joint; the assembly includes two bearings, a screw-retainer and a Viton (FPM) O-ring and is stable from -180°C to +260°C. Primary use cases are sealing and guiding stirring shafts through standard tapered glass joints during mixing, agitation, or vacuum/pressure operations in a laboratory setting.

Key Features:

• Material: PTFE
• Standard taper joint: 34/45
• Shaft diameter accepted: 8 mm
• Includes: 2 bearings, screw-retainer, Viton (FPM) O-ring
• Temperature stability: -180°C to +260°C

Advantages:

• High chemical resistance and low-friction PTFE construction reduce contamination and wear.
• Two bearings provide smooth shaft guidance and reduced vibration during stirring.
• Viton O-ring with screw-retainer ensures reliable sealing across vacuum and moderate pressure conditions.
• Wide temperature stability enables use in cryogenic to high-temperature laboratory processes.