68 series bearings

68 series bearings were developed for applications where space limitations are of the utmost importance. For example, with the development of humanization design, more and more application for people need smaller and lighter, the difference between the inside and outside diameters of the rings has been minimized or thinned out. Of course this comes at a price by compromising load capacities compared with standard deep groove ball bearing. However, these bearings still accommodate a relatively light radial thrust or combined loads to reach the requirement of application conveniently.

The know-how and the advanced machines used in manufacturing allow our Bearings to reach thin dimensional limits. Our Thin section bearings facilitate the compact design of industrial robots, electrical tools, motor, electrical home appliance, automotive industry, audio-visual and office automation equipment.

68 Series bearings – Metric dimensional series for limited space applications and light load

Thin Section Deep Groove Ball Bearing

68 series Ball Bearings

68 series ball bearings

Any combination of closures is available,please contact us for more details.

Basic
Bearing
No.
Nominal Bearing Dimensions Preferred Shoulder Diameters
d D B r (min) da (min) da (max) Da (max)
Open Shielded sealed
mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch
685 5 0.1969 11 0.4331 3 0.1181 5 0.1969 0.15 0.006 6.2 0.244 6.2 0.244 9.9 0.390
686 6 0.2362 13 0.5118 3.5 0.1378 5 0.1969 0.15 0.006 7.4 0.291 7.4 0.291 11.7 0.461
687 7 0.2756 14 0.5512 3.5 0.1378 5 0.1969 0.15 0.006 8.5 0.335 8.5 0.335 12.7 0.500
688 8 0.3150 16 0.6299 4 0.1575 5 0.1969 0.20 0.008
689 9 0.3543 17 0.6693 4 0.1575 5 0.1969 0.20 0.008 10.7 0.421 10.7 0.421 15.2 0.598
6800 10 0.3937 19 0.7480 5 0.1969 5 0.1969 0.30 0.012 12.0 0.472 14.0 0.551 17.8 0.700
6800W7 10 0.3937 19 0.7480 7 0.2756 7 0.2756 0.30 0.012
6801 12 0.4724 21 0.8268 5 0.1969 5 0.1969 0.30 0.012 14.0 0.551 14.5 0.571 19.0 0.748
6802 15 0.5906 24 0.9449 5 0.1969 5 0.1969 0.30 0.012 17.0 0.669 17.5 0.689 22.0 0.866
6803 17 0.6693 26 1.0236 5 0.1969 5 0.1969 0.30 0.012 19.0 0.748 19.5 0.768 24.0 0.945
6804 20 0.7874 32 1.2598 7 0.2756 7 0.2756 0.30 0.012 22.0 0.866 22.5 0.886 30.0 1.181
6805 25 0.9843 37 1.4567 7 0.2756 7 0.2756 0.30 0.012 27.0 1.063 28.0 1.102 35.0 1.378
6806 30 1.1811 42 1.6535 7 0.2756 7 0.2756 0.30 0.012 32.0 1.260 33.0 1.299 40.0 1.575
6807 35 1.3780 47 1.8504 7 0.2756 7 0.2756 0.30 0.012 37.0 1.457 38.0 1.496 45.0 1.772
6808 40 1.5748 52 2.0472 7 0.2756 7 0.2756 0.30 0.012 42.0 1.654 43.0 1.693 50.0 1.969
6809 45 1.7717 58 2.2835 7 0.2756 7 0.2756 0.30 0.012 47.0 1.850 48.0 1.890 56.0 2.205
6810 50 1.9685 65 2.5591 7 0.2756 7 0.2756 0.30 0.012 52.0 2.047 54.0 2.126 63.0 2.480

We reserve the right to change specifications and other information included in this catalogue without notice.

Other Parameters

Basic
Bearing
No.
Basic Load
Ratings (lbs)
Factor Limiting Speeds
(1000 RPM)
Ball
Complement
Bearing Weight
(Approx.)
Cr 
KN
Cor
KN
fo Grease
rpm
Oil
rpm
No. Size
mm
Weight
Ibs kg
685 0.715 0.282 12.7 46000 54000 8 1.588 0.0053 0.0024
686 1.080 0.440 13.1 40000 50000 8 2.000 0.0059 0.0027
687 1.170 0.510 13.6 39000 49000 9 2.000 0.0066 0.0030
688 1.330 0.585 14.0 37000 45000 9 2.381 0.0088 0.0040
689 1.720 0.820 14.4 35000 42000 11 2.000 0.0088 0.0040
6800 1.830 0.925 14.8 33000 40000 9 2.381 0.0110 0.0050
6800W7 1.830 0.925 15.0 33000 40000 9 2.381 0.0132 0.0060
6801 1.920 1.040 15.3 32000 38000 12 2.381 0.0132 0.0060
6802 2.080 1.260 15.8 28000 32000 14 2.381 0.0154 0.0070
6803 2.810 1.720 16.1 25000 30000 15 2.381 0.0176 0.0080
6804 4.010 2.470 15.5 23000 28000 13 3.500 0.0330 0.0150
6805 4.310 2.950 16.1 18000 23000 15 3.500 0.0440 0.0200
6806 4.700 3.620 16.5 16000 19000 18 3.500 0.0550 0.0250
6807 4.900 4.050 16.7 13000 17000 22 3.175 0.0638 0.0290
6808 5.100 4.400 17.0 12000 15000 24 3.175 0.0726 0.0330
6809 6.400 6.100 17.2 11000 13000 27 3.175 0.0880 0.0400
6810 6.670 6.800 17.2 9600 11000 24 3.969 0.1144 0.0520