Jiaxing bearing manufacturing co. , LTD. , production stamping outer ring needle roller bearings, needle roller bearing is a cylindrical roller of roller bearings, relative to its diameter, roller is thin and long.
This is called needle roller.
Although has a small cross-section, bearing still has high load capacity, needle roller bearing with thin and long (
Roller diameter D 5 mm or less, the L/D 2 or more.
5, L for roller length)
, so the radial structure is compact, its inner diameter size and load capacity at the same time, with other types of bearing outside diameter is small, especially suitable for radial installation size limit of the supporting structure.
Seal type stamping outer ring needle roller bearing seal type stamping outer ring needle roller bearing with sealing ring seal, under the condition of work, to protect the bearing from intrusion and grease leakage of debris.
It is - in the use of temperature
20℃-
Within the range of 120 ℃, can run for a long time.
If can timely supplement suitable grease or short-term use, can be used to + 130 ℃.
Seal the synthetic rubber, labial ministry has good elasticity, and steel lining core, mechanical strong rigidity, in addition, the sealing ring axial guide to maintain.
Product characteristics of needle bearing with fine and long roller (
Roller diameter D 5 mm or less, the L/D 2 or more.
5, L for roller length)
, so the radial structure is compact, its inner diameter size and load capacity at the same time, with other types of bearing outside diameter is small, especially suitable for radial size by a limited amount of supporting result.
According to the use of different occasions, can be used without inner ring of the bearing or needle roller and cage components, at this time to suit the bearing surface of the surface of the shaft and the shell hole directly as inner and outer rolling bearing surface, in order to ensure the load capacity and operation performance and you have the same ring bearing, axis or shell hole hardness on the surface of the raceway, machining accuracy and surface quality should be as a bearing ring raceway.
These bearings can bear radial load only.
Considerations for needle roller bearing bearing capacity big, suitable for installation by the limit of the supporting structure size, shaft neck as rolling surface hardening on the surface, bearing with force fit into the hole, not for axial positioning.
Bearing before installation should be injected into the right amount of grease, under normal circumstances, after the assembly no longer BK type bearing lubrication for shaft neck without out of the bearing, encloses the seal effect, and can withstand the small axial winding.
Needle roller bearing advantages and usability needle bearing with fine and long roller (
For 3 ~ 10 times the diameter of the roller length, diameter, generally no more than 5 mm)
, so the radial structure is compact, its inner diameter size and load capacity at the same time, with other types of bearing outside diameter is small, especially suitable for radial installation size limit of the supporting structure.
Needle roller bearing according to the use of different occasions, the machining accuracy and surface quality should be combined with bearing ring, use.
Needle roller bearing is a centripetal needle bearing and thrust bearing parts of the bearing unit.
