Cylindrical Roller Bearings are bearing in which cylinders are used as the rolling elements as opposed to balls in ball bearings. As such, the rollers have a greater (linear) contact area with the outer ring and are distribute loads across a broader surface. Subsequently, they have a relatively high radial load capacity and are suitable for high speeds. Double-row cylindrical roller bearings have high radial rigidity and are used primarily for precision machine tools.
HZK cylindrical roller bearings are available in a variety of cage types suitable for different scenarios, including EM brass cages, ETVP black nylon cages, FAG process products, ECML integral cages, and E steel cages.
There are different types designated NU, NJ, NUP, N, NF for single-row bearings, and NNU, NN for double-row bearings depending on the design or absence of side ribs. HZK’s cylindrical roller bearings come in the following series with various cage designs and Metric dimensions.
Model number | Basic dimensions(mm) d | Basic dimensions(mm) D | Basic dimensions(mm) B | Rated load (N) Cr | Rated load (N) Cor | Limiting speed (1) (rpm) Grease lubrication | Limiting speed (1) (rpm) oil lubrication | Weight ≈kg |
|---|---|---|---|---|---|---|---|---|
| NJ204ET | 20 | 47 | 14 | 25700 | 22600 | 13000 | 16000 | 0.107 |
| NJ2204 | 20 | 47 | 18 | 20700 | 18400 | 13000 | 16000 | 0.144 |
| NJ2204ET | 20 | 47 | 18 | 30500 | 28300 | 13000 | 16000 | 0.138 |
| NJ304ET | 20 | 52 | 15 | 31500 | 26900 | 12000 | 15000 | 0.145 |
| NJ2304 | 20 | 52 | 21 | 30500 | 27200 | 11000 | 14000 | 0.217 |
| NJ2304ET | 20 | 52 | 21 | 42000 | 39000 | 11000 | 14000 | 0.209 |
| NJ205EW | 25 | 52 | 15 | 29300 | 27700 | 12000 | 14000 | 0..136 |
| NJ2205ET | 25 | 52 | 18 | 35000 | 34500 | 12000 | 14000 | 0.16 |
| NJ305EW | 25 | 62 | 17 | 41500 | 40000 | 10000 | 12000 | 0.269 |
| NJ2305ET | 25 | 62 | 24 | 57000 | 56000 | 9000 | 11000 | 0.338 |
| NJ405 | 25 | 80 | 21 | 46500 | 40000 | 9000 | 11000 | 0.57 |
| NJ206EW | 30 | 62 | 16 | 39000 | 37500 | 9500 | 12000 | 0.205 |
| NJ2206ET | 30 | 62 | 20 | 49000 | 50000 | 9500 | 12000 | 0.255 |
| NJ306EW | 30 | 72 | 19 | 53000 | 50000 | 8500 | 10000 | 0.409 |
| NJ2306 | 30 | 72 | 27 | 74500 | 77500 | 8000 | 9500 | 0.518 |
| NJ406 | 30 | 990 | 23 | 62500 | 55000 | 7500 | 9500 | 0.758 |
Shandong HZK Bearing Factory, located in Panzhuang Industrial Park, Linqing City, Shandong Province, covers a total building area of over 10,000 square meters. HZK BEARING FACTORY mainly produces and sells spherical roller bearings, cylindrical roller bearings, deep groove ball bearings, tapered roller bearings, thrust self-aligning roller bearings, automotive wheel bearings, and more. The factory is equipped with fully automated workshops, heat treatment equipment, lathes, grinding machines, ultra-precision equipment, and assembly facilities. We utilize industry-leading production equipment and testing instruments, and have multi-story warehouses to fully guarantee bearing quality and delivery speed. HZK BEARING also customizes various non-standard products. We welcome customers to visit our factory for guidance, business negotiations, and mutual development.
faq
Q: What is your delivery time?
A: If the goods are in stock, it generally takes 5-10 days. If the goods are not in stock, it takes 15-20 days depending on the quantity.
Q: How are you packaged?
A: Packaging can be customized according to customer requirements.
Q: Are we a trading company or a manufacturer?
A: We are a manufacturer with our own factory.
Q: I want a specific size or color of goods, can you customize it?
A: We provide rolls and sheets, as well as post-processing services such as logo printing.
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