POM plastic bearings are categorized into five main types: the miniature thin-walled 6800/6900 series, the standard 6000 series, the widened 6200 series, the thickened 6300 series, and the MR miniature non-standard series.
I. 6800 Series (Ultra-thin-walled miniature POM bearings, inner diameter 3-12 mm)
683, 684, 685, 686, 687, 688, 689, 6800, 6801, 6802, 6803, 6804, 6805, 6806
II. 6900 Series (Thin-walled, standard miniature type)
693, 694, 695, 696, 697, 698, 699, 6900, 6901, 6902, 6903, 6904, 6905, 6906, 6907, 6908, 6909, 6910
III. 6000 Series
603, 604, 605, 606, 607, 608, 609,
6000, 6001, 6002, 6003, 6004, 6005, 6006, 6007, 6008, 6009, 6010
IV. 6200 Series (Wider and thicker; superior load capacity compared to the 6000 series)
623, 624, 625, 626, 627, 628, 629,
6200, 6201, 6202, 6203, 6204, 6205, 6206, 6207, 6208, 6209, 6210
V. 6300 Series (Thickened heavy-duty type; highest load capacity)
633, 634, 635, 636, 637, 638, 639,
6300, 6301, 6302, 6303, 6304, 6305, 6306, 6307, 6308, 6309, 6310
VI. MR Series Miniature Non-standard POM Bearings (Ultra-small inner diameter; for instruments/toys)
MR83, MR104, MR105, MR106, MR115, MR117, MR126, MR128, MR137, MR148, MR166, MR188
1. No suffix: Open-type POM bearing without seals (all pictured models are open-type)
2. -RS: Single-sided rubber seal
3. -2RS: Double-sided seal (waterproof version)
Examples: POM604, POM624, POM634, POM608-2RS, MR104
Properties advantages of ceramic bearings compared with steel ball bearings:
1. Higher limiting speeds: Ceramics is lighter than steel and can effectively restrain the centrifugal force, therefore enhancing the limiting speeds.
2. Higher precision usage: Ceramic has a higher hardness and elastic modulus than steel, which means ceramic bearings are more rigid than steel bearings, so therefore can be used in higher precision conditions.
3. Longer life: Lighter ceramic leads to a lower centrifugal force, this will extend the life of the bearing. Furthermore, the friction coefficient of ceramic is lower than steel, which also extends the life of the bearing
4. Higher temperature usage: Ceramic is more mechanically stable at elevated temperatures, therefore they could be used under higher temperatures.
5. Temperature-variation usage: Ceramics has a lower thermal expansion coefficient, and the clearance and tolerance variation is lower than those of steel bearings, which leads to a greater variation in the temperature range.
6. Better seizure resistance: Ceramics has a smaller thermal expansion coefficient; indicating less thermal deformation, therefore enhancing seizure resistance.
7. Could run without oil or grease: Ceramic never rusts and is self-lubricated, therefore can be used in applications that require no oil or grease.
8. Resistant to acid, alkali, and salt: The chemical industry is the largest potential application industry of ceramic bearings to be exploited.
9. More suitable for magnetic applications: Our ceramic bearings are non-magnetic, which means it is difficult for magnetic particles to adhere to the race, therefore reducing particle abrasion.
1. What is the minimum order quantity for this product?
Can be negotiated, and we will try our best to meet customer needs. Our company is mainly based on wholesale sales, most customers orders are more than 1 ton.
2. What is your latest delivery time?
Most orders will be shipped within 3-10 days of payment being received.
3. What is the competitiveness of your company's products compared to other companies?
High precision, high speed, low noise.
4. What are the advantages of your company's services compared to other companies?
Answer questions online 24 hours a day, reply in a timely manner, and provide various documents required by customers for customs clearance or sales. 100% after-sales service.
5. Which payment method does your company support?
Do our best to meet customer needs.
6. How to contact us quickly?
Please send us an inquiry or message and leave your other contact information, such as phone number, Whatsapp account or WeChat account, we will contact you as soon as possible and provide the detailed information you need.
