As an authorized dealer for TIMKEN bearings, I want to share some practical tips for maintaining bearings with stained oil. First, when dealing with a dirty SKF bearing, you should clean it using oil to remove the dirt, and then apply lubrication. If you don’t use any lubricant, the bearing might rust quickly after being soaked in oil.
If you can remove one side cover of the bearing, you can follow this method: use oil to clean the dirt, then apply lubricant. Without lubrication, the bearing could rust faster after prolonged exposure to oil. Alternatively, you can remove the side cover and wash it with oil (you can buy this at a gas station for about 15 yuan per bottle). After cleaning, you can apply oil to the needle.
If the oil feels too thick, you can add a bit of WD-40, which is an excellent import SKF bearing agent. However, skating in the rain is something you should avoid as it can lead to rust and damage the bearing. If this happens, you need to oil and maintain the bearing immediately.
Secondly, regarding equipment, you’ll need lubricants (such as WD-40, needle car oil, or Dinosaur 191) to protect the bearing and clear dirt from within. You'll also need a cleaner (like a degreaser) to remove grease.
If the bearing makes noise or malfunctions, it might have sand inside. For those who aren’t too fussy or are lazy, you can skip this step. Once you disassemble the bearing and wash away the thick grease, it becomes easier for sand to enter, making it more prone to contamination later on.
For your tools, you’ll need two cans of oil (available at gas stations for 15 yuan each), bowls or other non-plastic containers (as plastic may dissolve), several small containers to hold small parts, a precise screwdriver (like the type used to tighten glasses cases), and a toothbrush.
The steps are as follows:
1. Remove the wheel first, remembering to secure the screws—losing them would be troublesome!
2. Remove the bearing. Some wheel cores are tight, so use a hex wrench to carefully remove them. The bearings are quite durable and won't break easily.
3. Start by brushing the dirty surfaces of the bearing with a toothbrush. Skipping this step will make a difference!
4. Check if the side cover of the bearing is removable. Look for a C-shaped ring at the edge—if present, it’s removable. If not, it's fixed.
5. If it’s removable, use a precision screwdriver to gently pry open the C ring and remove the side cover. Make sure to keep these components safe for reassembly.
6. If it’s not removable, you’ll need to take a more destructive approach. Use the screwdriver to pry open the side cover. It won’t fit back perfectly afterward, but don’t worry—it’s just one side!
7. Remove all side covers and start washing. Place the bearings in a bowl with oil and stir them around.
Kunshan Keno Precision Bearings Co., Ltd. carries a variety of stock models, including 23028EW33K, NU214ECML, 560-S/552-S, LASE20-N, 6007-Z, 7210BECBP, IRT3020, SNL532TURU, NTN 6220-2RS, SKF629-2RSH, TLAM5025, FAG 292/850E.MB, NSK32364, 7336DB, FAG EGF35260-E40-B, FAG1208TV, NJ228E, NACHI3981/3920, KLL481448-LL481411, NTN6205Z, 7022, KOYO23068RK+H3068, NKI90/26, NACHINUP306E, 24034B, 22232RHAK+AH3132, EGB1420-E40, 54408, GBRI122416, 7019C/DB, NN3020KTN9/SP, H220X, SKF 1301E, HS71920-ET-P4S, 7334AC/DT, SKF 51220, NU1076, B71905-CT-P4S, FAG B71924C.O, 32024X/DF, 71924ACD/HCP4A, RNA6904, 2279, NUTR50110A, 7214CDF, NJ203-E-TVP2, B7024-ET-P4S, 22334CCJA/W33VA406.
These bearings are essential for various applications, and we're always ready to assist with any inquiries or orders. If you need any of these models, feel free to contact us directly.
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