Specifications

sewing machine bearing HK1617
1.Gcr15 material
2.Suitable for machinery
3.High loads
4.ISO:9001:2000

Roller needle bearing for sewing machine HK1617
Brif introductions of sewing machine bearing HK1617
Needle roller bearings without inner class in general. If you need to use the inner ring, the choice of IR-type inner ring. ENKE Drawn Cup Needle Roller Bearings are divided into bearing at both ends of perforation (HK type)and closed at one end bearing (BK type) . And perforation type Drawn Cup Needle Roller Bearings compared with one end sealed-type bearings are sealed and suitable for shaft ,and can withstand a small axial travel motivation.

Needle roller bearings are essentially cylindrical roller bearings except that their cylindrical rollers have a length 3 to 10 times their diameter (versus less a length less than 3 times their diameter). Therefore, the ratio of the bearing outside diameter to the inscribed circle diameter is small, and they have a rather high radial load capacity. Even though they have a low cross section, needle roller bearings have a high radial load capacity and are exceptionally apt for bearing applications where radial space is limited.

Inner diameter for such kind of a bearing is according to tolerance grade F6. Various radial tolerances can be obtained through selecting a suitable shaft diameter.
Needle roller bearing with inner ring used in the situation of that the shaft can't be quenched. The inner ring can be axially fastened with contacted parts or stopping loop.

Needle roller bearing with double row is used under heavy load or a wide bearing surface is required.

It can take big radial load. Such a bearing has two kinds, with and without inner ring which is made up of a machined outer ring, a needle and cage assemblies and a separable inner ring.

Overview:Heavy-duty needle roller bearings consist of a machined and ground channel-shaped outer ring with a complement of needle rollers retained and guided by a cage.

The high-strength cage retains and guides the rollers.An optional lubrication groove and hole in the outer ring facilitate relubrication.These bearings can be used with or without a machined and ground inner ring,depending on the suitability of the shaft as a raceway surface.

S izes:Metric:5 mm -175 mm bore (0.19685 in.-6.88976 in.).

Markets:Gear pumps,sheaves,automotive transmissions and two-cycle engines.

Features:Thick outer ring provides maximum load capacity and shock resistance with a relatively small radial cross section. Benefits:Optimum speed and lubrication-retention capability. Entity needle roller bearing(Heavy duty roller bearing) .NK,NKI,NA,NAV,NAO,HJ,BR,BRI

 Light series needle roller bearings (NK,NKI,NKS,NKIS) 
Heavy series needle roller bearings (NA,RNA,RNA-RS,RNA-2RS) 
Curve needle rollers (KR,CF,CR,CNBH) 
Strut needle rollers (NART,NUTR,CCYR,STO,RSTO,NAST-ZZ) 
Not obstructs side needle roller bearings(NAO,RNAO) 
Needle roller-thrust ball bearings (NX,NX-Z,NKX,NKX-Z) 
Needle roller-thrust cylindrical bearings (NKXR,NKXR-Z) 
Radial needle roller-thrust cylindrical needle roller bearings (ZARN) 
Thrust-cylindrical needle roller bearings (811,812,WS,GS) 
Needle rollers and cages (K,KR,KS,KBK,KZK) 
Drawn cup needle roller clutches and assemblies (HF,HFL) 
Inside rings (IR, LR)

Needle Roller Clutch with Pressed Outer Ring (unilateral bearing) can be treated as converter, non-return device, free wheel device. HF (Needle Roller Clutch): it is made of pressed outer ring and plastic holder; the holder can be installed with plastic reed or the stainless steel reed to guide the needle rollers, bevel race way and needle rollers can be treated as locking device. HFL(Clutch and Bearing Unit): pedestal bearing is installed at the two sides of the needle roller clutch and bears the radial load, the needle roller and the plastic holder units can be treated as the pedestal bearing.

Main Structure Style:

Bearing No.	Characteristics of Structure
HF	Needle Roller Clutch with Pressed Outer Ring and Steel Spring
HF..KF	Needle Roller Clutch and Bearing Units with Pressed Outer Ring and Plastic Spring
HF..R	Needle Roller Clutch with Pressed Outer Ring and Steel Spring, Knurling Outer Ring
HF..KFR	Needle Roller Clutch and Bearing Units with Pressed Outer Ring and Plastic Spring, Knurling Outer Ring
HFL	Needle Roller Clutch and Bearing Units with Pressed Outer Ring and Steel Spring, Sliding Bearing or Rolling Bearing
HFL..KF	Needle Roller Clutch and Bearing Units with Pressed Outer Ring and Plastic Spring, Sliding Bearing or Rolling Bearing
HFL..R	Needle Roller Clutch and Bearing Units with Pressed Outer Ring and Steel Spring, Knurling Outer Ring
HFL..KFR	Needle Roller Clutch and Bearing Units with Pressed Outer Ring and Plastic Spring, Knurling Outer Ring

 

Spcifications of sewing machine bearing HK1617

 

Boundary dimensions(mm)			Basic load ratings(N)		Limiting speeds(rpm)	Mass(g)	Bearing Number
Fw	D	C	Cr	Cor	Oil	(Approx.)
16	22	17	12900	17200	12000	18	HK1617

 

 

 

Advantages of sewing machine bearing HK1617

- Smaller cross-section leading to greated rigidity,higher load-carrying capacity & lower inertia of the needle roller bearings help size and weight reductions in machinery.

- Though they are less wide,their load carrying capacity is high and is most suitable for applications where the load is high & the radial space is less.

- Needle roller bearings,which are designed to withstand oscillation can operate under severe conditions & interchange with sliding bearings.

Fitting tolerance:
When installing the needle bearing, usually the strict fitting is applied, so that its thin-walled outer ring can be supported well.

A larger interference will be applied if there is a big load, especially for there is a percussive load.

In addition, the temperature difference should notice between bearing outer ring and its connecting parts.

Radial clearance:
The radial clearance of needle roller bearing is the same as the cylindrical roller bearing, the needle bearing provided in the catalogue are normally Group 0 clearance in the national standard GB/T4604, group C2, C3 or C4 is also available if required.

Expanded Options

- Assemblies with bearings

 

- Engineered polymer cages

 

- Bearings with one or two seals

 

-Closed end bearings

 

- Oil holes

 

-Drawn sleeve

Needle roller bearing specifications & Standards:

-Dimensions:the boundary dimensions of the drawn cup needle roller bearings are in accordance with ISO

-Bore size:Its size is meassured in millimeters.The bore is a hollow cylindrical chamber or barrel shaped where the metal balls  are placed.

-Outer ring width:It is the width of the outer ring measured in millimeter.

Products  name	Needle bearing
Brand  name	CLUNT
Series	HK BK  TA  TLA
ID  size	10mm-165mm
Cage  material	Nylon , steel , brass
Precision	P0,P6,P5,P4,P2
‘Quality  standard	ISO9001:2000 standard
Service	OEM  service
Delivery  date	Normally ready goods and stock within 15days
Payment terms	A:100% L/C at  sight B: 30% T/T in advance .70% against copy of  B/L
Application	Automobile, tractor ,machine tool, electric machine, agricultural machinery and textile machinery.
Package	Industrial package or according to your requirement.

 

 

 Model numbers of one-way needle bearing

Model	Size
HK0609	6 x 10 x 9
HK0607	6 x 10 x 7
HK0509	5 x 9 x 9
BK0408TN	4 x 8 x 8
HF0612KF	6 x 10 x 12
HF0608KF	6 x 10 x 8
HF0406KFR	4 x 8 x 6
HF0406KF	4 x 8 x 6
HF0306KF	3 x 6.5 x 6
21310CD 21310CDK	50 x 110 x 27
22210CD 22210CDK	50 x 90 x 23
22210H 22210HK	50 x 90 x 23
21309CD 21309CDK	45 x 100 x 25
22209CD 22209CDK	45 x 100 x 25
22209H 22209HK	45 x 85 x 23