GQZ TAF192720 Machined Needle Roller Bearing 19×27×20mm No Inner Ring For Compact Transmission Equipment

TAF192720 is machined single row needle roller bearing without inner ring, equivalent to NK19/20 standard model. It adopts integrated machined outer ring + precision cage and needle rollers, compact cross-section with ultra-high radial load capacity. The shaft surface directly serves as inner raceway, greatly saving installation space, suitable for high-speed, compact transmission assemblies under light-medium shock load conditions.

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1. No inner ring design, utilize quenched shaft surface as raceway, minimize radial installation space
2. Dense needle roller arrangement provides outstanding radial bearing capacity under slim outline
3. Precision superfinished outer ring and rollers reduce friction heat, support stable high-speed rotation up to 20000rpm
4. Rigid machined outer ring adapts to light alloy housings without deformation under load
5. Compact structure perfect for narrow installation space of small gearboxes and automation shafts
6. Fully interchangeable with original IKO TAF192720 aftermarket replacement
7. Custom precision grades P0/P6/P5, stainless steel version and OEM laser marking supported
8. 👉 Optimize equipment structure layout and extend service life of compact transmission parts

• Small industrial gearboxes and speed reducers
• Precision automation equipment linear & rotary shafts
• Machine tool auxiliary spindle and feed transmission
• Automotive small transmission auxiliary shafts
• Textile, packaging machinery compact rotating assemblies
• Hydraulic pump, motor miniature rotor support parts

• 25+ years professional manufacturer of machined needle roller bearings
• Exported to over 50 countries worldwide
• Strict hardness, dimensional tolerance and high-speed rotation testing before delivery
• 24-hour technical support for compact mechanism matching guidance
• Stable bulk stock supply for automation and gearbox distributors

👉 We focus on quality, reliability, and long-term partnership

• GCr15 raw material metallurgy & hardness inspection
• Precision superfinishing grinding for outer ring raceway and needle rollers
• Complete quenching & tempering heat stabilization process
• High-speed temperature rise and vibration aging test
• Full dimensional tolerance inspection for compact needle bearing sizes

Looking for TAF192720 compact no-inner-ring needle roller bearings?

👉 Send inquiry to get:

• Fast quotation within 24 hours
• Shaft quenching & surface hardness matching suggestion
• Custom high-speed low-friction grease options
• Competitive factory price

Contact our sales team for full technical datasheets and formal quotation