Categories | Needle retainer assembly |
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Place of Origin: | China mainland |
Brand Name: | SFT |
Certification: | SFT |
Model Number: | K5*8*8 TN |
MOQ: | 100 |
Price: | 0.1-50us$ |
Packaging Details: | Industries packaging |
Delivery Time: | 5-7days |
Payment Terms: | T/T; D/P;L/C |
Supply Ability: | 10000 |
1.The Model number of K series drawn cup needle roller bearings.
Needle retainer assembly is a kind of independent bearing unit with high load capacity and rigidity especially applicable for the tray of shaft and seat holes with the unit which is limited in radical dimension.Each needle have excellent operative characteristic due to each needle exactly guided and kept by the retainer.
In the case of crank shaft where difficulty of using and mounting occur , RTL will supply the divided structure.
In general case, M type punched retainer is used, besides, there are metal solid retainer,fiber glass reinforced nylon 66 retainer. The latter can work under the temperature of 120℃ for a long period while it can even operate under 150℃ for short time.
Precision |
Table 1 needle diameter tolerance
Precision grade | Needle diameter tolerance | ||
G2 | 0~-2 | -2~-4 | -4~-6 |
G3 | 0~-3 | -3~-6 | -6~-9 |
Combination |
Table 2 the recommended shaft tolerances of the casing when machined as per G6
Operational conditions | Recommended shaft tolerance | |
≤80 | >80 | |
High speed, high precision | j5 | h5 |
General operational condition | h5 | g5 |
High temperature or greatmounting tolerance | g6 | f6 |
When the needles are running directly in the shaft or in outer
case, to make the needle retainer assembly reach its fully load
capacity , the hardness of the inner and outer tray surface must
reach 58-62HRC and the roughness must not greater than 0.32μm . the
surface quality must be the same of rolling bearing tray.
Assembling and relative dimensions |
2, The detail informtion of needle retainer assembly
Size | 5*8*8mm |
Main market | South America,North America,Asia,Europe and so on |
Supply ability | 20000sets/week |
Payment terms | L/C,T/T,Western Union,Paypal 1.30% deposit by T/T,Western Union,Paypal,70% before delivery 2.100% L/C at sight |
Package | 1.Polybag +box+packing |
Delivery time | 3-5 days after your payment |
3, Company information
Web: http://sftbearings.sell.everychina.com/