1209K Self‑aligning Ball Bearing 45×85×19mm 1:12 Tapered Bore Open‑type For Industrial Transmission Equipment

• 1209K is a double‑row open‑type self‑aligning ball bearing with 45×85×19mm dimension. It features a 1:12 tapered inner bore designed for mounting with adapter sleeve. With spherical outer raceway structure, this bearing can actively compensate shaft misalignment and deflection during operation. Made of high‑quality GCr15 chrome steel, it offers stable rotation, low noise and excellent anti‑vibration performance. Ideal for equipment with poor shaft parallelism and unstable running conditions.

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• Self‑aligning function automatically compensates shaft misalignment and installation errors
• 1:12 tapered bore allows easy installation and fixation with H309 adapter sleeve
• Double‑row ball structure provides larger load capacity and stable operation
• Open‑type design supports convenient oil lubrication and regular maintenance
• Effectively reduces vibration and noise during long‑time continuous operation
• High‑strength GCr15 steel ensures wear resistance and long service life

• Textile machinery and weaving transmission equipment
• Conveyor systems and belt drive machinery
• Agricultural machinery and farm processing equipment
• Small industrial fans and ventilation devices
• Paper making and printing industrial machines
• General mechanical equipment with shaft deflection problems

• 30 years professional bearing industry experience
• ISO certified strict quality inspection
• Flexible OEM & private label customization
• 3-5 days fast delivery for stocked bearings
• Full bearing series, universal interchangeable size
• Factory direct price & reliable after-sales service

*Contact our engineer to select precision grade and cage for your machine spindle.

*Stable stock for thin-wall cylindrical roller bearings, support fast bulk shipment.