Available Bearings | Bearing Selector | Technical Info | Mechanical Assemblies | Torque Analysis | Torque Testers | New Products |
Dynaroll Bearing No. | BORE (d1) +0/-.008mm |
BORE (d2) Reference |
OD (D1) Reference |
OD (D2) |
Fillet Radius (r) |
Height (H) +0/-.127mm |
Dynamic Rating (Ca) kgf |
Static Rating (Coa) kgf |
Limiting Speed** RPM: Oil |
Limiting Speed** RPM: Grease |
3.0 |
3.2 |
7.8 |
8.0 +0/-.008mm |
0.20 |
3.5 |
182 |
128 |
6,500 |
4,875 |
|
4.0 |
4.2 |
8.8 |
9.0 +0/-.008mm |
0.20 |
4.0 |
96 |
69 |
11,000 |
8,250 |
|
4.0 |
4.2 |
9.8 |
10.0 +0/-.011mm |
0.20 |
4.0 |
94 |
69 |
11,000 |
8,250 |
|
5.0 |
5.2 |
9.8 |
10.0 +0/-.011mm |
0.20 |
4.0 |
105 |
118 |
11,000 |
8,250 |
|
5.0 |
5.2 |
11.8 |
12.0 +0/-.011mm |
0.20 |
4.0 |
108 |
93 |
10,800 |
8,100 |
|
6.0 |
6.2 |
11.8 |
12.0 +0/-.011mm |
0.20 |
4.5 |
186 |
165 |
10,500 |
7,875 |
|
6.0 |
6.2 |
13.8 |
14.0 +0/-.011mm |
0.25 |
5.0 |
220 |
173 |
8,000 |
6,000 |
|
7.0 |
7.2 |
14.8 |
15.0 +0/-.011mm |
0.30 |
5.5 |
410 |
371 |
7,800 |
5,850 |
|
7.0 |
7.2 |
16.8 |
17.0 +0/-.011mm |
0.30 |
6.0 |
410 |
371 |
7,800 |
5,850 |
|
8.0 |
8.2 |
15.8 |
16.0 +0/-.011mm |
0.30 |
5.0 |
400 |
371 |
7,800 |
5,850 |
|
8.0 |
8.2 |
18.8 |
19.0 +0/-.011mm |
0.40 |
7.0 |
347 |
419 |
7,200 |
5,400 |
|
9.0 |
9.2 |
16.8 |
17.0 +0/-.011mm |
0.40 |
5.0 |
390 |
371 |
7,600 |
5,700 |
|
9.0 |
9.2 |
19.8 |
20.0 +0/-.013mm |
0.40 |
7.0 |
426 |
370 |
7,200 |
5,400 |
|
10.0 |
10.2 |
17.8 |
18.0 +0/-.011mm |
0.30 |
5.5 |
252 |
260 |
7,400 |
5,550 |
**Assumes adequate high speed oil or grease; and Dynamic Capacity (Ca)/applied axial load (Ca/Pa >= 12) is equal to or greater than 12 | ||||||||
Thrust bearings are separable. | ||||||||
Shaft & Housing Tolerances:
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Backup Shoulder Diameters:
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Bearing O.D. Radial Runout: 8 µm Bearing Race Groove to Bore (d1) Radial Runout: 6 µm maximum Bearing Race Groove to Backface Axial Runout: 10 µm maximum | ||||||||
Lubrication:
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Bearing Preload: The larger of the two values from the equations below should be used
as the minimum axial load to prevent ball sliding at relatively high speeds:
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Bearing Life Calculations: Ln Life = (A1 x A2 x ...) x (Ca/T)3 x 10 A1, A2, ... Adjustment Factors:
T = Applied Equivalent Dynamic Thrust Load |