Material
Kashima Bearings, Inc. offers high-quality bearings made from 7 kinds of plastic, 5 of which injection-molding companies cannot use. Plus, we can craft a huge range of shapes, sizes and types in all of our materials.
Based on decades of expertise and know-how, we offer the optimum combination of bearing type and materials that take advantage of the unique characteristics of each to match your environment and conditions for maximum effectiveness and cost-savings.
See below for the characteristics of each material. Please contact us for free consultation for those of you who wish to ensure you are ordering the perfect material for your environment and needs.
Materials for Kashima Bearings
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Phenol | PTFE | UHMW (PE) | PP |
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PEEK | PPS | PCTFE | Carbon |
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Other types of plastics |
Bearing Number
[Inner and outer ring material] – [Ball material]
Ex. UKB 6002 PT – A
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Applicability of Rings and Cages by Material and Environment
◎ Highly Recommended ○ Recommended
△ Not Recommended × Do Not Use
Material | Call symbol |
Dry | Irregular moisture |
In water / In sea-water |
Vapor | Chemical | Non- magnetic |
Insulating | |||
---|---|---|---|---|---|---|---|---|---|---|---|
Acid | Alkali | Organic solvent |
Oil | ||||||||
Phenol | SD | ◎ | ◎ | ◎ | ◎ | ○ | × | ◎ | ◎ | ◎ | ◎ |
SDK | ◎ | ◎ | ◎ | ◎ | ○ | × | ◎ | ◎ | × | × | |
SDHG | ◎ | △ | △ | × | ○ | × | ○ | ◎ | × | × | |
PTFE | PT | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | × |
PTG | ◎ | ◎ | ◎ | ◎ | ◎ | × | ◎ | ◎ | ◎ | ◎ | |
PTE | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | |
PTN | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | |
UHMW | PE | ○ | ○ | ◎ | × | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ |
PP | PP | △ | ○ | ○ | △ | ○ | ○ | ○ | ○ | ◎ | ◎ |
PEEK | PK | ○ | ○ | ○ | ○ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ |
PKG | ◎ | ○ | ○ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | × | |
PPS | PS | ○ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ |
PSG | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | × | |
PCTFE | PCT | ○ | ○ | ○ | ◎ | ◎ | ◎ | ○ | ○ | ◎ | ◎ |
PVDF | PV | ○ | ○ | ○ | ◎ | ◎ | ◎ | ○ | ○ | ◎ | ◎ |
Carbon (Graphite) |
CY | ◎ | ○ | ○ | ◎ | ◎ | ◎ | ◎ | ◎ | ○ | × |
NOTE: Please contact us for chemical type, concentration, etc.
Temperature Resistance of Materials
☆ Best Recommended ◎ Highly Recommended ○ Recommended
△ Not Recommended × Do Not Use
Material | Call symbol |
Temperature | |||||||
---|---|---|---|---|---|---|---|---|---|
-190℃~ | -100℃~ | -50℃~ | -20℃~ | Room temperature ~60℃ |
~120℃ | ~200℃ | ~350℃ | ||
Phenol | SD | × | × | ○ | ◎ | ☆ | ◎ | × | × |
SDK | × | × | ○ | ◎ | ☆ | ◎ | × | × | |
PTFE | PT | ○ | ◎ | ◎ | ◎ | ☆ | ◎ | △ | × |
PTG | ○ | ◎ | ◎ | ◎ | ☆ | ◎ | △ | × | |
PTE | ○ | ◎ | ◎ | ◎ | ☆ | ◎ | △ | × | |
UHMW | PE | × | △ | ○ | ○ | ☆ | × | × | × |
PP | PP | × | △ | ○ | ○ | ☆ | ○ | × | × |
PEEK | PK | × | × | ○ | ◎ | ☆ | ◎ | ○ | × |
PKG | × | × | ○ | ◎ | ☆ | ◎ | ◎ | × | |
PPS | PS | × | × | × | ○ | ☆ | ◎ | ○ | × |
PSG | × | × | × | ○ | ☆ | ◎ | ○ | × | |
PCTFE | PCT | × | × | ○ | ◎ | ☆ | ○ | × | × |
Carbon (Graphite) |
CY | × | × | △ | ○ | ☆ | ◎ | ◎ | ◎ (Note) |
NOTE: The bearings may be deformed due to high temperatures.
Applicability of Balls by Material and Environment
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Ceramic | Stainless steel | Soda glass | Plastics |
Ball Material Name
|
Reference Code
|
Dry
|
Water
|
Chemical-
resistant |
Non-
magnetic |
Insulating
|
Steam
|
|
---|---|---|---|---|---|---|---|---|
Ceramic
|
Al2O3
|
A
|
☆
|
◎
|
◎*1
|
☆
|
☆
|
☆
|
ZrO2
|
Z
|
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Si3N4
|
N
|
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SiC
|
C
|
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Stainless steel
|
SUS304
|
S
|
☆
|
◎
|
△
|
△
|
×
|
◎
|
SUS316
|
S6
|
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Soda glass
|
G
|
☆
|
○
|
○
|
☆
|
☆
|
×
|
|
Plastic
|
PP
|
PP
|
×
|
☆
|
☆*1
|
☆
|
☆
|
◎*2
|
PE
|
PE
|
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PVDF
|
PV
|
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PTFE
|
PTN
|
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PEEK
|
PK
|
Recommendation: ☆ indicates the best materials. ◎ indicates the second-best materials. ○indicates good materials. △ indicates materials that can be used but are not recommended. The × shape indicates materials that cannot be used.
*1) Please fill out and send the Contact Form.
*2) Properties vary by plastic material.
For more information about tolerances and other issues, download a catalogue from here.