Miniature and small size ball bearings NTN 6 series 

Type

Extra small ball bearings

Bearing structure

Full cover rings

Rolling element

Ball

Number of rolling row

1

Bearing shape

Flanged, Standard

For shaft type

Round

Cover type

Open, Shielded, Sealed

Cover style

Shield on one side only, Shields on both sides, Rubber non-contact seals on both sides, Rubber contact seals on both sides

Bore diameter

1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm

Outside diameter

4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 16mm, 14mm, 19mm, 15mm, 17mm, 22mm, 24mm, 20mm, 26mm

Bearing thickness

1.2mm, 2mm, 2.5mm, 1.5mm, 2.3mm, 2.8mm, 1.8mm, 3mm, 4mm, 5mm, 6mm, 3.5mm, 7mm, 8mm, 2.6mm, 4.5mm

Reference speed

88000rpm, 79000rpm, 71000rpm, 83000rpm, 74000rpm, 67000rpm, 59000rpm, 62000rpm, 70000rpm, 65000rpm, 56000rpm, 60000rpm, 58000rpm, 54000rpm, 50000rpm, 52000rpm, 49000rpm, 46000rpm, 45000rpm, 43000rpm, 42000rpm, 37000rpm, 40000rpm, 39000rpm, 34000rpm, 36000rpm, 35000rpm, 38000rpm, 32000rpm, 33000rpm, 31000rpm, 30000rpm

Basic dynamic load

113N, 189N, 305N, 115N, 310N, 430N, 425N, 169N, 231N, 315N, 475N, 610N, 268N, 620N, 700N, 710N, 246N, 440N, 720N, 790N, 1080N, 1450N, 1940N, 241N, 555N, 795N, 1190N, 1470N, 2590N, 515N, 920N, 1200N, 1490N, 1960N, 2430N, 915N, 1300N, 1780N, 2480N, 3700N, 570N, 910N, 2200N, 4450N, 1020N, 1910N, 2750N, 3750N, 5050N

Basic static load

29N, 51N, 86N, 37N, 89N, 120N, 125N, 59N, 73N, 96N, 152N, 174N, 94N, 130N, 180N, 219N, 224N, 88N, 140N, 235N, 276N, 360N, 490N, 680N, 91N, 211N, 282N, 430N, 505N, 885N, 196N, 365N, 440N, 530N, 695N, 865N, 269N, 375N, 715N, 910N, 1400N, 252N, 385N, 1590N, 465N, 820N, 1090N, 1450N, 1960N

Load direction

Combined radial and axial

Ring material

Stainless steel

Cage method

Molded cage

Cage material

Synthetic resin

Internal clearance/ preload/ Tolerance class

Standard, Clearance C3, Radial internal clearance for electric motor use

Lubrication

Multemp

Overall length

1.2mm, 2mm, 2.5mm, 1.5mm, 2.3mm, 2.8mm, 1.8mm, 3mm, 4mm, 5mm, 6mm, 3.5mm, 7mm, 8mm, 2.6mm, 4.5mm

Overall diameter

4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 16mm, 14mm, 19mm, 15mm, 17mm, 22mm, 24mm, 20mm, 26mm, 6.5mm, 7.5mm, 6.1mm, 7.2mm, 8.5mm, 7.1mm, 9.2mm, 9.5mm, 8.1mm, 10.2mm, 10.5mm, 11.5mm, 8.2mm, 10.3mm, 11.2mm, 12.5mm, 13.5mm, 18mm, 13.2mm, 12.2mm, 14.2mm, 15.6mm, 25mm, 10.6mm, 11.6mm, 12.6mm, 13.6mm, 14.6mm

Approx. weight

0.07g, 0.18g, 0.35g, 0.06g, 0.13g, 0.16g, 0.31g, 0.32g, 0.44g, 0.54g, 0.11g, 0.22g, 0.43g, 0.57g, 0.72g, 0.2g, 0.33g, 0.52g, 0.61g, 0.71g, 0.92g, 1.6g, 0.28g, 0.38g, 0.67g, 1g, 1.8g, 2.1g, 3.2g, 5.1g, 0.55g, 0.88g, 1.1g, 2.4g, 3.5g, 4.8g, 8g, 0.65g, 1.3g, 1.9g, 3.8g, 5.2g, 6g, 8.1g, 1.4g, 13g, 0.75g, 3.1g, 7.3g, 12g, 17g, 8.2g, 14g, 20g, 0.09g, 0.24g, 0.42g, 0.17g, 0.64g, 0.26g, 0.53g, 0.83g, 0.6g, 0.79g, 0.46g, 0.76g, 2g, 2.3g, 0.4g, 0.63g, 0.97g, 2.7g, 3.9g, 0.74g, 2.2g, 4.3g, 6.5g, 9.2g, 0.77g, 1.5g, 5.7g, 0.86g, 8.4g, 3.6g