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May 10, 2023
Deep groove ball bearing specialist for heat & chemistry,PEEK PAI balls
Tolerances and measuring system:
The tolerances for inner and outer diameters depend on the size. These are often approx. ±0.05 mm to the nominal dimension. The bearing rings are usually injection molded and naturally exhibit a certain ovality. For this reason, the caliper gauge is used to measure 90° to the injection point (if present) over the entire width of the bearing. The dimensions and tolerances are designed to meet an easy press fit by hand when using a H7 mounting as well as shaft h6. Additional axial securing by means of a circlip (shaft) and snap ring (housing) is recommended to prevent axial displacement.
Mounting recommendation:
1. mounting (tolerance H7)
2. front side (balls visible)
3. rear side (cage visible)
4. press in ball bearing with front side first
5. mount shaft (tolerance h6) with chamfer
6. an axial safety device must be provided
Balls material | Polyamidimid (PAI) | |
Density | 1.23 g/cm³ | |
Colour | brown | |
Max. Moisture Absorption | 0.1 Wt.- % | |
Max. Water Absorption | 0.4 Wt.- % |
Max. speed (rpm) | 2700 | |
Dynamic load capacity | 25 N | |
Modulus of elasticity | 4300 MPa | |
Flexural strength (at 20 °C/68 °F) | 130 MPa | |
Shore-D hardness | 85 |
Alcohol | + resistant | |
Greases, oils without additives | + resistant | |
Hydrocarbons | + resistant | |
Fuels | + resistant | |
Strong alkalines | + resistant | |
Strong acids | + resistant | |
Diluted alkalines | + resistant | |
Diluted acids | + resistant |
Installation size | 608 | |
Ø d1 | 8 mm | |
Ø d2 | 22 mm | |
b1 | 7 mm | |
Tolerance of shaft | h6 |
Max. temperature long | 150 °C | |
Lower application temperature | -100 °C |
The above is the PEEK PAI balls bearing we have listed for you. You can submit the following form to obtain more industry information we provide for you.
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