C0 C1 2211K Open Self Aligning Ball Bearing Double Row Ball Bearing

Quick Detail:

1. Brand Name: UMT

2. Bore Size: mm

3. Outside Diameter: mm

4. Model Number: NSK bearing self-aligning ball bearing 2211K

5. Precision Rating: ABEC-1/ P0, ABEC-3/P6, ABEC-5/P5, ABEC-7/P4

6. Seals Type: open

7. Number of Row: Double Row

8. Place of Origin: Germany

9. Width: mm

10. Net weight: kg

11. Material: Chrome steel, Stainless steel

12. Cage: Steel, Brass, Nylon

13. Type: ball bearing

14. Clearance: C0,C1,C2,C3,C4,C5 etc.

15. Vibration: V1,V2,V3

16. Noise level: Z1, Z2, Z3, Z4

17. Sample available: Yes

18. Manufacturer: Yes

Description:

Self-aligning ball bearings are constructed with the inner ring and ball assembly contained within an outer

ring that has a spherical raceway. This construction allows the bearing to tolerate a small angular

misalignment resulting from deflection or improper mounting. Self-aligning ball bearing is consequently

self-aligning and insensitive to angular misalignments of the shaft relative to the housing.

This kind of ball bearings are particularly suitable for applications where considerable shaft deflections or

misalignment are to be expected. Additionally, the self-aligning ball bearing has the lowest friction of all

rolling bearings, which enables it to run cooler even at high speeds.

Specifications:

Applications:

In general, ball bearings are used in most applications that involve moving parts. Some of these

applications have specific features and requirements:

· Hard drive bearings used to be highly spherical, and were said to be the best spherical manufactured

shapes, but this is no longer true, and more and more are being replaced with fluid bearings.

· German ball bearing factories were often a target of allied aerial bombings during World War II; such

was the importance of the ball bearing to the German war industry.[4]

· In horology, the company Jean Lassale designed a watch movement that used ball bearings to reduce

the thickness of the movement. Using 0.20 mm balls, the Calibre 1200 was only 1.2 mm thick, which still

is the thinnest mechanical watch movement.[5]

· Aerospace bearings are used in many applications on commercial, private and military aircraft including

pulleys, gearboxes and jet engine shafts. Materials include M50 tool steel (AMS6491), Carbon chrome

steel (AMS6444), the corrosion resistant AMS5930, 440C stainless steel, silicon nitride (ceramic) and

titanium carbide-coated 440C.

· Skateboarding. The wheels in a skateboard contain two bearings in each of the four wheels. Most

commonly bearing 608-2Z is used (a deep groove ball bearing from series 60 with 8 mm bore diameter)

· Yo-Yos, there are ball bearings in the center of high quality Yo-Yos.

Competitive Advantage:

1. Quality level: reach the same level as the Japanese and European bearings

2. Tolerance level: ABEC-1 (P0), ABEC-3 (P6)

3. Less coefficient of friction

4. High limiting speed

5. Large size range

6. variations of structure