NSK 6311 ZZC3 Deep Groove Ball Bearing - 55 mm ID, 120 mm OD, 29 mm Width, Cylindrical Bore, C3 Tool Set The Whittet-Higgins CNB-38 is a

The Whittet-Higgins CNB-38 is a one-piece

and a maximum IR temperature of 850°C (1562°F)

They have 3 position rachet angle temples and anti-slip TPR temple tips

Unique pantograph system for grip width adjustment that counteracts misalignment during operation

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NSK 6311 ZZC3 Deep Groove Ball Bearing - 55 mm ID, 120 mm OD, 29 mm Width, Cylindrical Bore, C3 Tool Set The Whittet-Higgins CNB-38 is aDeep Groove Ball Bearing sealed design with increased clearance Deep Groove Ball Bearings are versatile and widely used bearings. They can accommodate radial loads and, to a lesser extent, axial loads in both directions. Known for their low friction and quiet operation. The sealed design provides protection against contamination. Manufactured to precision tolerance class for demanding applications. Robust steel cage construction ensures durability.