VEX 7 /NS 9CE1 UL
Main technical Specifications
Detailed parameters and installation dimensions:
Pu: 0.027 KN, fo: 6.5 , d1: 10.4 mm, D1: 15.7 mm, r1,r2(min): 0.3 mm, r3,r4(min): 0.15 mm, a: 5 mm, da,db(min): 9 mm, Da(max): 17 mm, Db(max): 17.6 mm, ra(max): 0.3 mm, rb(max): 0.15 mm
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VEX 7 /NS 9CE1 UL refers to a type of Angular contact ball bearings, super-precision, with dimensions 7 mm (Bore) x 19 mm (OD) x 6 mm (Width), designed for High speed, ultra-precision, high rigidity, low operating friction, and long service life, primarily used in CNC machine tool spindles and other high-precision machinery, Its normal operating speed can reach: the grease speed ratings: 150000 rpm, oil speed ratings: 230000 rpm, for applications the field of precision machinery, especially high-speed and high-precision spindle systems, requiring high running accuracy and the accommodation of radial and axial loads simultaneously. it's built to handle significant loads (dynamic radial: 1950 N, static radial: 640 N, ), It weight approximately 0.006 kilogram.
- Min. Order: 1 Piece/(VEX 7 /NS 9CE1 UL, 7 = ID, 19 = OD, 6 = B, 0.006 kg) or according to different suppliers
- Price: Different brands, different quality, different VEX 7 /NS 9CE1 UL prices, different suppliers and different quality determine different prices, you can ask the supplier in detail for the price according to your own needs.
- Precision Rating: DIN: P2~P0; ANSI: ABEC9~ABEC1; JIS: JIS~JIS0; ISO: CLASS2~NORMAL CLASS; GB/T30794 B~G
- Inquiry ways: The right of the inquiry form, Email, skype, Whatsapp
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✨What are the Benefits of choosing VEX 7 /NS 9CE1 UL bearings?
🏭 What are the applications of the VEX 7 /NS 9CE1 UL bearing?
📐 How should choose the right model for a Angular contact ball bearings, super-precision?
Direction Selection
High-speed priority: Select small contact angles (15°/18°), such as SKF's E/B/A design or NSK's ROBUST series.
Heavy-duty/high-rigidity priority: Select large contact angles (25° and above), such as SKF's D design or NSK's TAC-F series.
Parameter Selection
Size series: Ultra-light 718, Extra-light 719, Light and narrow 70, Heavy-duty 72.
Internal design: Correspond to the high-speed or heavy-duty optimization code of each brand.
Material: Ceramic balls (hybrid ceramic bearings) can significantly improve high-speed performance.
Accuracy and Combination Selection
Accuracy: Machine tool spindles generally select ISO P4 grade (ABEC 7 grade) or higher.
Matching: DB (back-to-back) has good rigidity; DF (face-to-face) has good thermal conductivity; DT (tandem) can withstand unidirectional heavy loads.
Preload: Select light, medium, or heavy-duty according to the load; universal matching models are more convenient.
🛠️ What is the mounting procedure for VEX 7 /NS 9CE1 UL bearings?
Cleaning and Inspection: Clean the bearing in a dust-free environment. After a rough wash to remove contaminants, perform a fine wash until the bearing feels smooth and responsive to the touch. Simultaneously check the accuracy of the mating surfaces of the shaft and bearing housing.
Measurement and Fitting: Precisely measure the bearing's inner and outer diameters. Mark the corresponding positions on the shaft and housing bores for alignment during assembly to compensate for any deviations.
Installation and Positioning: Apply pressure evenly using a specialized tool, focusing only on the interference fit rings. If heat fitting is used, tighten the inner ring during cooling to prevent clearance from affecting the preload.
Preload Adjustment: When installing in pairs, ensure the parallelism of the inner and outer spacers is ≤1μm. Adjust the preload force to the specified value by grinding the spacers.
Lubrication Inspection: Add the specified amount of grease or oil mist lubricant. After installation, manually rotate the bearing to check its flexibility and operating noise.
📋 Special Note for mounting VEX 7 /NS 9CE1 UL bearings?
Clean Environment: Operation must be performed in a dust-free cleanroom with humidity ≤65% to prevent dust and impurities from affecting accuracy.
No Striking: Direct striking of the bearings is strictly prohibited. Special tools must be used, and force must be applied evenly.
Matching Marks: Bearings used in pairs are not interchangeable. Installation must strictly follow the factory matching marks.
Rust-Proof Storage: Long-term storage requires regular rust-proofing treatment. Maintain ventilation and avoid corrosive gases.