insert ball bearings

insert ball bearings are mainly used in simple arrangements, e. g. in agricultural machines, conveyer devices, food processing machines, construction machines, etc.

limiting rotation speed for various shaft diameter tolerances
bore diameter limiting rotation speed with plastic lubricant for bearings type ua, ue, ud and uc with shaft diameter tolerance
„d“ h6 h7 h8 h9 h11
mm min-1
17 9500 6000 4300 1500 950
20 8500 5300 3800 1300 850
25 7000 4500 3200 1000 700
30 6300 4000 2800 900 630
35 5300 3400 2200 750 530
40 4800 3000 1900 670 480
45 4300 2600 1700 600 430
50 4000 2400 1600 560 400
55 3600 2000 1400 500 360
60 3400 1900 1300 480 340
65 3000 1700 1100 430 300
70 2800 1600 1000 400 280
80 2400 1400 900 360 240
90 2000 1200 800 320 200

radial equivalent dynamic load

radial equivalent dynamic load is calculated in the same way as for the standard ball bearings:

pr= fr
pr= 0,56.fr y.fa

for fa/fr≤ e
for fa/fr> e


factors

fa/cor e y
0.025 0.22 2
0.040 0.24 1.8
0.070 0.27 1.6
0.130 0.31 1.4
0.250 0.37 1.2
0.500 0.44 1

radial equivalent static load

radial equivalent static load of insert ball bearings is calculated as follows:

por= 0,6.fr 0,5.fa

for (por≥ fr)



design specification

application

the insert ball bearings with housing units are used mainly in agricultural machines, conveyor systems, food industry machines as insert bearing units. in general, they are used in arrangements, where the insert bearing unit provides an economical solution with simple arrangement design. for the purpose of potential re-lubrication, the housing units are equipped with grease nipple and grease duct leading straight to the bearing. should the re-lubrication of insert bearing be not required by its operating conditions, the threaded hole can be plugged.

main dimensions

the housing unit main dimensions are in the accordance with standards iso 3228, the eccentric locking collar dimensions are in accordance with standards iso 2145.

designation

for designation of the housing units and complete insert bearing units see the following table.