30mm 高温用 450°F 2ボルトフランジSealed ボールベアリングユニット（鋳鉄製ハウジング、シリコン製接触面Seals 、C4クリアランス、止めネジによる固定および再潤滑ポート付き、1個入り）

30mm high-temp 450°F sealed flange bearing, single
✔️ Cast iron housing, silicone contact seals, C4 clearance, set-screw

This is a single 2-bolt flange sealed ball bearing unit used to support industrial shafts, conveyor rollers, linear slide units, and general machinery where elevated temperature resistance is required. Designed for service up to 450°F (232°C).

✅ Bore: 30 mm insert, ball bearing with C4 internal clearance
✅ Housing: cast iron 2-bolt flange, sealed design for contamination control
✅ Seals: silicone contact seals with slinger for high-temp protection
✅ Locking: set-screw locking, relubrication port provided for maintenance
✅ Insert material: bearing steel insert, HTS 8483.20.40.40, single bearing each

💡 What is a 2-bolt flange sealed ball bearing unit used for in industrial shaft support? A short, practical answer for quick reference. - Provides rigid shaft mounting and radial support for rollers, conveyors, fans, and motor shafts in light to heavy industrial equipment. - Uses sealed ball bearing protection to help resist dust and debris while allowing relubrication for longer service life. - Cast iron housing and silicone contact seals make it handy for higher temperature and harsher environments; consider ceramic ball bearings when extreme speed or corrosion resistance is needed.