|Payment & Shipping Terms||Supply Capacity|
|Payment Terms:||L/C, T/T, WU||Production Capacity:||1200000 Piece/Pieces...|
|Min. Order:||100 Piece/Pieces||Packing:||RNB OR NATURAL|
|Means of Transport:||Ocean, Air||Delivery Date:||30days|
Drawn cup needle roller bearings
1. Structures of various series of drawn cup needle rollers
Metric series: HK, BK, F, FH, FY, MF, MFH, MFY
Inch series: SCE, BCE, SCH, BCH, SN, B, BH, M, MH
HK: Caged, with open ends
BK: Caged, with open ends
F : Full complement, with open ends
FH : Full complement, with open ends(Heavy series)
FY : Full complement, grease retained, with open ends
MF : Full complement, with closed ends
MFH: Full complement, with closed ends(heavy series)
MFY: Full complement, with closed ends
SCE: Caged, with open ends
BCE: Caged, with closed ends
SCH: Caged, with open ends(heavy series)
BCH: Caged, with closed ends(heavy series)
SN : Full complement, grease retained, with open ends
B : Full complement, with open ends
BH : Full complement, with open ends(heavy series)
M : Full complement, with closed ends
M H : Full complement, with closed ends (heavy series)
2. Inspection the enveloping circle diameter
The dimensional accuracy of drawn cup needle roller bearings can not be measured before fitting
without a ring gauge as the thin-walled outer ring can be out of round due to the manufacturing process.
The bearings obtain the accuracy required for their correct function only when pressed into a housing
bore which must be manufactured with the recommended tolerance limits.
The enveloping circle diameter can then be checked as follows:
a. Press the bearing into a steel ring gauge(wall thickness ≥ 20mm).The bore dimension of the ring
gauge must correspond to that given.
b. Measure the enveloping circle diameter with cylindrical go and no-go gauge plugs.
Drawn cup needle roller bearings with a closed end are suitable for bearing arrangements at the ends of shafts. The profiled design of the closed end accommodates small axial guidance forces. Drawn cup needle roller bearings generally run directly on the shaft. However, in cases where the shaft cannot be hardened and ground, they can be combined with an inner ring
The drawn cup of hardened steel and the needle roller and cage assembly of these bearings form a non-separable unit. The space available for lubricant is large enough to enable long relubrication intervals.
Typically, drawn cup needle roller bearings have a single row of rollers. However, wide sizes incorporate two needle roller and cage assemblies immediately adjacent to each other with a lubrication hole in the outer ring
On request, any single row drawn cup needle roller bearing for shaft diameters of 7 mm and above can be supplied with a lubrication hole in the outer ring .
Drawn cup needle roller bearings are mounted with an interference fit in the housing bore. Therefore, shoulders or snap rings are not required to locate the bearing axially so the design of the housing bore is simple and can be produced economically.
|Drawn cup needle roller bearings|
|Shafts and housings,|
|Principal dimensions||Basic load ratings||Fatigue||Speed ratings||Mass||Designation|
|14||20||14||6,82||8,65||0,98||15000||9500||0,013||BK 1414 RS|
|14||20||14||6,82||8,65||0,98||15000||9500||0,012||HK 1414 RS|
|15||21||14||7,48||10||1,14||15000||9500||0,012||HK 1514 RS|
|15||21||18||10,1||14,6||1,7||15000||9500||0,016||HK 1518 RS|
|16||22||14||7,37||9,8||1,12||14000||9000||0,015||BK 1614 RS|
|16||22||14||7,37||9,8||1,12||14000||9000||0,013||HK 1614 RS|
Drawn cup needle roller bearings
Category: Drawn Cup Needle Roller Bearings