HF1816 Needle roller bearings 18×24×16mm

Needle roller bearings, drawn cupHF1816

Demension: 18×24×16mm,    Weight: 15.5g.

SHAPE LOCATION TOLERANCE SHOULD BE TO CURRENT STANDARD;

Outer ring fordrawncup needle roller bearings(DC type) is made of cold rolled steel strip accurately formed.Structure of DC needle roller bearings features space saving and higher capacity.They are suitable for applications with limited space and housing not hard enough to act as raceway. No requirement on axial location when the DC needle roller bearing is pressed into the housing.

In most applications inner ring is not necessary for DC needle roller bearings unless shaft raceway is impractical,standard inner rings for DC to compare with open end DC needle roller bearings, close end DC needle roller bearings are good for sealing at the close end of bearings,operating temperature range for bearings grease lubricatedare 20℃ to +120℃.

Needle roller bearings, drawn cupHF1816

1. Structures of various series of drawn cupneedlerollers
     Metricseries: 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,withopenends(Heavy series)
     FY : Full complement, grease retained,withopenends
     MF : Full complement, with closed ends
     MFH:Fullcomplement, with closed ends(heavy series)
     MFY: Fullcomplement,withclosed ends
     SCE: Caged, with open ends
     BCE:Caged, withclosedends
     SCH: Caged, with open ends(heavy series)
     BCH: Caged,withclosed ends(heavy series)
     SN   : Full complement, greaseretained,withopen ends
     B    : Full complement, with open ends
     BH   :Fullcomplement, with open ends(heavy series)
     M    : Fullcomplement,withclosed ends
     M H: Full complement, with closedends(heavyseries)
2. Inspection the enveloping circle diameter
    The dimensional accuracy of drawn cup needle roller bearings cannot 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 ahousing
     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.

Shaft Dia.	Part Number	Dimension			Torque Rating	LimitingSpeed		Weight
		Fw	D	C		Shaft	Housing
mm		mm			Nm	RPM		g
4	HF0406	4	8	6	0.34	34000	8000	1
6	HF0612	6	10	12	1.76	23000	13000	3
8	HF0812	8	12	12	3.15	17000	12000	3.5
10	HF1012	10	14	12	5.3	14000	11000	4
12	HF1216	12	18	16	12.2	11000	8000	11
14	HF1416	14	20	16	17.3	9500	8000	13
16	HF1616	16	22	16	20.5	8500	7500	14
18	HF1816	18	24	16	24.1	7500	7500	16
20	HF2016	20	26	16	28.5	7000	6500	17
25	HF2520	25	32	20	66	5500	5500	30
30	HF3020	30	37	20	90	4500	4500	36
35	HF3520	35	42	20	121	3900	3900	40

Needle roller bearings, drawn cupHF1816