MR52ZZ Bearing
High carbon chromium bearing steel with good comprehensive properties. After quenching and tempering, hardness is high and uniform, wear resistance and fatigue strength is high. Good thermal processing. It has good machinability after spheroidizing annealing.
- Product Introduction
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MR series deep groove ball bearings |
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model |
MR52zz |
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Inside diameter (mm) |
2 |
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Outside diameter (mm) |
5 |
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The width (mm) |
OPEN |
2 |
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ZZ |
2.5 |
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The material |
Inner ring |
Gcr15 |
Testing standard |
GB-T 305-1998 |
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Outer ring |
Gcr15 |
GB-T 305-1998 |
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Steel ball |
Gcr15 |
GB-T 305-1998 |
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Dust cover (ZZ) |
SPCC/SUS |
GB-T 305-1998 |
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Retainer (R) |
SUS/MN |
- |
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Oil and grease |
LY series |
JB-T 8571-1997 |
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Resistance to high temperature (℃) |
50~150 |
JB-T 8571-1997 |
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Base rated load |
Dynamic load Cr (N) |
169 |
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Cor static load (N) |
50 |
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Application field |
All kinds of micro motors, cooling fans, instruments and meters, |
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Our company can customize, develop and produce all kinds of non-standard bearings according to customer requirements. |
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Material Introduction:
1. High carbon chromium bearing steel (GCr15)
High carbon chromium bearing steel with good comprehensive properties. After quenching and tempering, hardness is high and uniform, wear resistance and fatigue strength is high. Good thermal processing. It has good machinability after spheroidizing annealing.
Stainless steel:
2.SUS420
420 stainless steel is a kind of martensitic stainless steel, with certain wear resistance, corrosion resistance and high hardness. Suitable for all kinds of precision machinery, bearings, electrical equipment, instruments, meters, vehicles, household appliances and so on. It is mainly used to make parts resistant to atmospheric, water vapor, water and oxidizing acid corrosion.
3. SUS440 cr18mo (9)
Martensitic stainless steel has higher carbon content than Cr13 steel, so its strength and hardness are higher than Cr13 steel. Other properties are similar to Cr13 steel. But its weldability is poor. Usually not used as a welding material. It is used to make surgical and medical tools. It also has good dimensional stability at high temperature, strong corrosion resistance and toughness. It is now more widely used for hand knives and quality factory tools.
4. SUS304 (06 cr19ni10/0 cr18ni9)
304 austenitic stainless steel has good corrosion resistance, heat resistance, low temperature strength and mechanical properties, stamping, bending and other good thermal processing, no heat treatment hardening phenomenon, no magnetic 304 stainless steel is widely used in manufacturing corrosion resistance and molding equipment and parts, because it has good heat resistance. At present, 304 stainless steel has been widely used in food, chemical, atomic energy and other industrial equipment and decoration, as well as household supplies, cabinets, indoor pipes, water heaters, boilers, bathtubs, auto parts, medical equipment, building materials, chemical, food industry, agriculture and ship parts.
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