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Drawn Cup Needle Roller Bearing, Outer Ring (Part Numbers)

Drawn Cup Needle Roller Bearing, Outer Ring

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  • Drawn Cup Needle Roller Bearing, Outer Ring

A bearing in which an outer ring is formed from a thin steel plate by precision drawing, the raceway surface is surface-hardened, and then a needle-shaped roller and a retainer are assembled.
[Features]
・ It has the smallest cross-sectional height of any bearing with an outer ring, enabling space reduction and cost savings.
・ Compact design is possible with the shaft directly as the raceway surface without using the inner ring.
・ The outer ring has a structure in which the needle roller and the retainer are not separated.
・ Retaining rings are not required for fixing in the axial direction by simply press-fitting into a rigid housing with an appropriate fit.
[Applications]
・ Heavy load, high speed, gearbox for automobiles, etc.
・ Steel equipment, mining / construction machinery, machine tools.

(i)Caution

  • Some of the items are scheduled to be discontinued as of end of March in 2023. The manufacturer keep the items produced but they are not available with Misumi.
    There are not the replacement items and the plan to resumption of sale. Please check the quotation and order screen for details.

PDF

Japanese Only

Drawing

Drawing 1 of shell type needle roller bearing

HK type, HMK type (Open-ended type)

Drawing 2 of shell type needle roller bearing

HK, ZWD type (Open-ended type)

Drawing 3 of shell type needle roller bearing

BK type (Closed end type)

Drawing 4 of shell type needle roller bearing

BK ‥ ZWD type (Closed end type)

Product features details

Shell-type needle roller bearings that can reduce space and cost

It is a bearing in which an outer ring is formed from a thin steel plate by precision drawing, the raceway surface is surface-hardened, and then a needle-shaped roller and a retainer are assembled (as for the part numbers with "M" in the suffix, they are heat treated after assembling). It has the smallest cross-sectional height of any bearing with an outer ring, enabling space reduction and cost savings.
Usually, a design is taken in which the shaft is directly used as the raceway surface without using the inner ring. The outer ring has a structure in which the needle-shaped roller and the retainers are not separated, and the bearing is easy to handle because it does not require a retaining ring to fix it in the axial direction, just by press-fitting it into a rigid housing with an appropriate fit.

Type, structure, and features of shell needle roller bearings

TypeCompatible shaft diameter (mm)Nominal NumberComposition and dimensionsNote
HK
(HK・・T2)
Standard
Series
Open Endø3 to ø50HK0609T2Diameter of Inscribed Circle: ø6
Width dimensions: 9
T2: Resin retainer
Since the suffix T2 uses a polyamide resin molding retainer, the allowable temperature should be 120°C, and 100°C or less for continuous use.
Premium shell bearings have F in the suffix. See CATNO.3029 (Premium Shell Bearing) for details. Those with an M in the suffix are heat-treated products after assembly. (Pre-vent specifications)
HK・・LOpen End
One-sided seal
ø12 to ø50HK2018L/3ASDiameter of Inscribed Circle: ø20
Width dimensions: 18
L: One-sided seal
3AS: Grease
The seal type (tailing symbol: L or LL) with a built-in synthetic rubber sealing seal on one side or both sides has lithium soap-based grease sealed inside.
To prevent deterioration of the seal and grease, the operating temperature should be -20 to 120°C, and within 100°C for continuous use.
This type has a shorter roller length and a smaller rated load than the open type with the same dimensions.
HK・・LLOpen End
Double-sided seal
ø12 to ø50HK2020LL/3ASDiameter of Inscribed Circle: ø20
Width dimensions: 20
LL: Double-sided seal
3AS: Grease
HK・・ZWDOpen End
Double row type
ø15 to ø30HK2030ZWDDiameter of Inscribed Circle: ø20
Width dimensions: 30
ZW: Retainer double row
D: Outer ring lubrication hole
This type has a lubrication hole in the outer ring.
HMK
(HMK・・T2)
Open Endø8 to ø50HMK2015Diameter of Inscribed Circle: ø20
Width dimensions: 15
Since the suffix T2 uses a polyamide resin molding retainer, the allowable temperature should be 120°C, and 100°C or less for continuous use.
HMK・・LOpen End
One-sided seal
ø8 to ø50HMK2018L/3ASDiameter of Inscribed Circle: ø20
Width dimensions: 18
L: One-sided seal
3AS: Grease
The seal type (tailing symbol: L or LL) with a built-in synthetic rubber sealing seal on one side or both sides has lithium soap-based grease sealed inside.
To prevent deterioration of the seal and grease, the operating temperature should be -20 to 120°C, and within 100°C for continuous use.
This type has a shorter roller length and a smaller rated load than the open type with the same dimensions.
HMK・・LLOpen End
Double-sided seal
ø8 to ø50HMK2021LL/3ASDiameter of Inscribed Circle: ø20
Width dimensions: 20
LL: Double-sided seal
3AS: Grease
HMK・・ZWDOpen End
Double row type
ø38 to ø50HK3845ZWDDiameter of Inscribed Circle: ø38
Width dimensions: 45
ZW: Retainer double row
D: Outer ring lubrication hole
This type has a lubrication hole in the outer ring.
BK
(BK・・T2)
Closed Endø3 to ø50BK2020CDiameter of Inscribed Circle: ø20
Width dimensions: 20
C: Welding retainer
Since the suffix T2 uses a polyamide resin molding retainer, the allowable temperature should be 120°C, and 100°C or less for continuous use.
BK・・LClosed End
One-sided seal
ø12 to ø50BK2018L/3ASDiameter of Inscribed Circle: ø20
Width dimensions: 18
L: One-sided seal
3AS: Grease
This seal type (suffix: L) has lithium soap-based grease sealed inside.
To prevent deterioration of the seal and grease, the operating temperature should be -20 to 120°C, and continuous use should be within 100°C.
BK・・ZWDClosed End
Double row type
ø15 to ø30BK2030ZWDDiameter of Inscribed Circle: ø20
Width dimensions: 30
ZW: Retainer double row
D: Outer ring lubrication hole
This type has a lubrication hole in the outer ring.

About allowable rotational speed

The permissible rotational speed is the permissible rotational speed that can be achieved based on the following assumptions.

  • Use under conditions where an appropriate amount of grease recommended by NTN is sealed, and the heat generated by sufficient familiar operation, cooling of the outer cylinder, etc., is removed.
  • Use with constant pressure preload.
Part Number
HK2520LL
HK2520LL/3AS
HK2526
HK2538ZWD
HK2820
HK2820LL/3AS
HK3012
HK3016LL/3AS
HK3018L/3AS
HK3020
HK3020LL
HK3020LL/3AS
HK3026
HK3038ZWD
HK3512
HK3516LL/3AS
HK3518L/3AS
HK3520
HK3520LL/3AS
HK4012
HK4016LL/3AS
HK4020
HK4020LL/3AS
HK4516
HK4520
HK4520LL/3AS
HK5020
HK5022L/3AS
HK5025
HMK0810
HMK0810C
HMK0812L/3AS
HMK0814LL
HMK0814LL/3AS
HMK0815
HMK0820T2
HMK0912
HMK0916
HMK1010
HMK1012L
HMK1012L/3AS
HMK1014LL/3AS
HMK1015
HMK1020
HMK1212
HMK1215
HMK1216LL
HMK1216LL/3AS
HMK1220
HMK1225
HMK1416
HMK1420
HMK1420C
HMK1510
HMK1512
HMK1513L/3AS
HMK1515
HMK1515B
HMK1516LL
HMK1516LL/3AS
HMK1520
HMK1521LL/3AS
HMK1525
HMK1616
HMK1620
HMK1715
HMK1720
HMK1720C
HMK1721LL/3AS
HMK1813
HMK1815
HMK1817
HMK1819
HMK1820
HMK1825
HMK1916
HMK1920
HMK2015
HMK2020
HMK2025
HMK2025C
HMK2026LL/3AS
HMK2030
HMK2120
HMK2210
HMK2225
HMK2230
HMK2420
HMK2428
HMK2510
Part NumberMinimum order quantityVolume DiscountDays to ShipRoHSLoad Direction Inner Dia. d
(Ø)
Outer Dia. D
(Ø)
Width B
(mm)
Number of Raceway Ring Rows Size Standards Retainer Type Basic Load Rating: Dynamic Load
(N)
Sealing Structure Lubricant Format symbol Holder Symbol Specifications Revolution Frequency
(rpm)
Series Case hardening (outer ring only) Outer ring oil hole Premium shell bearing Post-assembly heat treatment (pre-bent type)
1 Piece(s) 22 Day(s) or more 10Radial253220Single RowMetric System-15900Double-sided Seal TypeNAHK-Open End Double-sided Seal6500StandardNANANANA
1 Piece(s) 14 Day(s) or more -Radial---Single RowMetric System-15900Double-sided seal typeAvailableHK-Open End Double-sided Seal6500StandardN/AN/AN/AN/A
1 Piece(s) Same day -Radial253226Single RowMetric System-26400NANAHK-Open End6500StandardNANANANA
1 Piece(s) 16 Day(s) or more 10Radial253238Double RowMetric System-35000NANAHK-Open End Multiple-Row Type6500StandardNAAvailableNANA
1 Piece(s) Same day -Radial283520Single RowMetric System-21300NANAHK-Open End5500StandardNANANANA
1 Piece(s) 11 Day(s) or more -Radial283520Single RowMetric System-21300Double-sided Seal TypeAvailableHK-Open End Double-sided Seal8500StandardNANANANA
1 Piece(s) Same day -Radial303712Single RowMetric System-13000NANAHK-Open End5500StandardNANANANA
1 Piece(s) 20 Day(s) or more -Radial303716Single RowMetric System-18100Double-sided Seal TypeAvailableHK-Open End Double-sided Seal8000StandardNANANANA
1 Piece(s) 15 Day(s) or more -Radial---Single RowMetric System--One-sided Seal TypeAvailableHK-Open End One-sided Seal5500StandardN/AN/AN/AN/A
1 Piece(s) Same day -Radial303720Single RowMetric System-22300NANAHK-Open End5500StandardNANANANA
1 Piece(s) 11 Day(s) or more 10Radial303720Single RowMetric System-18100Double-sided Seal TypeNAHK-Open End Double-sided Seal5500StandardNANANANA
1 Piece(s) 19 Day(s) or more -Radial---Single RowMetric System-22300Double-sided seal typeAvailableHK-Open End Double-sided Seal5500StandardN/AN/AN/AN/A
1 Piece(s) Same day -Radial303726Single RowMetric System-28500NANAHK-Open End5500StandardNANANANA
1 Piece(s) 16 Day(s) or more 10Radial303738Double RowMetric System-38500NANAHK-Open End Multiple-Row Type5500StandardNAAvailableNANA
1 Piece(s) Same day -Radial354212Single RowMetric System-14000NANAHK-Open End4700StandardNANANANA
1 Piece(s) 11 Day(s) or more -Radial354216Single RowMetric System-19000Double-sided Seal TypeAvailableHK-Open End Double-sided Seal7000StandardNANANANA
1 Piece(s) 15 Day(s) or more -Radial---Single RowMetric System--One-sided Seal TypeAvailableHK-Open End One-sided Seal4700StandardN/AN/AN/AN/A
1 Piece(s) 16 Day(s) or more -Radial354220Single RowMetric System-24800NANAHK-Open End4700StandardNANANANA
1 Piece(s) Same day -Radial354220Single RowMetric System-24800Double-sided Seal TypeAvailableHK-Open End Double-sided Seal7000StandardNANANANA
1 Piece(s) Same day -Radial404712Single RowMetric System-15100NANAHK-Open End4000StandardNANANANA
1 Piece(s) 15 Day(s) or more -Radial---Single RowMetric System-21100Double-sided seal typeAvailableHK-Open End Double-sided Seal4000StandardN/AN/AN/AN/A
1 Piece(s) Same day -Radial404720Single RowMetric System-25900NANAHK-Open End4000StandardNANANANA
1 Piece(s) 16 Day(s) or more -Radial404720Single RowMetric System-25900Double-sided Seal TypeAvailableHK-Open End Double-sided Seal6000StandardNANANANA
1 Piece(s) 11 Day(s) or more -Radial455216Single RowMetric System-21600NANAHK-Open End3700StandardNANANANA
1 Piece(s) 19 Day(s) or more -Radial455220Single RowMetric System-27600NANAHK-Open End3700StandardNANANANA
1 Piece(s) 11 Day(s) or more 10Radial455220Single RowMetric System-27600Double-sided Seal TypeAvailableHK-Open End Double-sided Seal5500StandardNANANANA
1 Piece(s) 19 Day(s) or more -Radial505820Single RowMetric System-31500NANAHK-Open End3200StandardNANANANA
1 Piece(s) 11 Day(s) or more -Radial---Single RowMetric System--One-sided Seal TypeAvailableHK-Open End One-sided Seal3200StandardN/AN/AN/AN/A
1 Piece(s) 19 Day(s) or more -Radial505825Single RowMetric System-38500NANAHK-Open End3200StandardNANANANA
1 Piece(s) 16 Day(s) or more -Radial81510Single RowMetric System-4200NANAHMK-Open End30000Heavy LoadNANANANA
1 Piece(s) Same day -Radial81510Single RowMetric SystemWeld Shape3800NANAHMKC (Weld Holder)Open End20000Heavy LoadNANANANA
1 Piece(s) 16 Day(s) or more -Radial81512Single RowMetric System-3800One-sided Seal TypeAvailableHMK-Open End One-sided Seal1000Heavy LoadNANANANA
1 Piece(s) 16 Day(s) or more 10Radial81514Single RowMetric System-3800Double-sided Seal TypeNAHMK-Open End Double-sided Seal10000Heavy LoadNANANANA
1 Piece(s) 16 Day(s) or more -Radial81514Single RowMetric System-3800Double-sided Seal TypeAvailableHMK-Open End Double-sided Seal1000Heavy LoadNANANANA
1 Piece(s) Same day -Radial81515Single RowMetric System-6600NANAHMK-Open End20000Heavy LoadNANANANA
1 Piece(s) 16 Day(s) or more -Radial81520Single RowMetric SystemResin Forming9050NANAHMKT2 (Polyamide Resin Forming Holder)Open End20000Heavy LoadNANANANA
1 Piece(s) 16 Day(s) or more -Radial91612Single RowMetric System-5300NANAHMK-Open End18000Heavy LoadNANANANA
1 Piece(s) 11 Day(s) or more -Radial91616Single RowMetric System-7400NANAHMK-Open End18000Heavy LoadNANANANA
1 Piece(s) Same day -Radial101710Single RowMetric System-4250NANAHMK-Open End16000Heavy LoadNANANANA
1 Piece(s) 16 Day(s) or more 10Radial101712Single RowMetric System-4250One-sided Seal TypeNAHMK-Open End One-sided Seal10000Heavy LoadNANANANA
1 Piece(s) 16 Day(s) or more 10----Single RowMetric System-5600One-sided Seal TypeAvailableHMK-Open End One-sided Seal16000Heavy dutyN/AN/AN/AN/A
1 Piece(s) 11 Day(s) or more -Radial101714Single RowMetric System-4250Double-sided Seal TypeAvailableHMK-Open End Double-sided Seal10000Heavy LoadNANANANA
1 Piece(s) Same day -Radial101715Single RowMetric System-7400NANAHMK-Open End16000Heavy LoadNANANANA
1 Piece(s) Same day -Radial101720Single RowMetric System-10200NANAHMK-Open End16000Heavy LoadNANANANA
1 Piece(s) Same day -Radial121912Single RowMetric System-7100NANAHMK-Open End13000Heavy LoadNANANANA
1 Piece(s) Same day -Radial121915Single RowMetric System-9400NANAHMK-Open End13000Heavy LoadNANANANA
1 Piece(s) 16 Day(s) or more 10Radial121916Single RowMetric System-7100Double-sided Seal TypeNAHMK-Open End Double-sided Seal10000Heavy LoadNANANANA
1 Piece(s) 19 Day(s) or more -----Single RowMetric System-7100Double-sided seal typeAvailableHMK-Open End Double-sided Seal13000Heavy dutyN/AN/AN/AN/A
1 Piece(s) 16 Day(s) or more -Radial121920Single RowMetric System-12300NANAHMK-Open End13000Heavy LoadNANANANA
1 Piece(s) Same day -Radial121925Single RowMetric System-15300NANAHMK-Open End13000Heavy LoadNANANANA
1 Piece(s) 19 Day(s) or more -Radial142216Single RowMetric System-11500NANAHMK-Open End11000Heavy LoadNANANANA
1 Piece(s) 11 Day(s) or more -Radial142220Single RowMetric System-14600NANAHMK-Open End11000Heavy LoadNANANANA
1 Piece(s) 14 Day(s) or more -----Single RowMetric SystemWeld Shape14600NAN/AHMKC (Weld Holder)Open End11000Heavy dutyN/AN/AN/AN/A
1 Piece(s) Same day -Radial152210Single RowMetric System-6100NANAHMK-Open End11000Heavy LoadNANANANA
1 Piece(s) Same day -Radial152212Single RowMetric System-8400NANAHMK-Open End11000Heavy LoadNANANANA
1 Piece(s) 11 Day(s) or more -----Single RowMetric System--One-sided Seal TypeAvailableHMK-Open End One-sided Seal10000Heavy dutyN/AN/AN/AN/A
1 Piece(s) Same day 10Radial152215Single RowMetric System-10900NANAHMK-Open End11000Heavy LoadNANANANA
1 Piece(s) 16 Day(s) or more 10Radial152215Single RowMetric System-10500NANAHMK-Open End16000Heavy LoadNANANANA
1 Piece(s) 16 Day(s) or more 10Radial152216Single RowMetric System-6100Double-sided Seal TypeNAHMK-Open End Double-sided Seal10000Heavy LoadNANANANA
1 Piece(s) 16 Day(s) or more 10----Single RowMetric System-6100Double-sided seal typeAvailableHMK-Open End Double-sided Seal10000Heavy dutyN/AN/AN/AN/A
1 Piece(s) Same day -Radial152220Single RowMetric System-14900NANAHMK-Open End11000Heavy LoadNANANANA
1 Piece(s) 11 Day(s) or more -Radial152221Single RowMetric System-10900Double-sided Seal TypeAvailableHMK-Open End Double-sided Seal10000Heavy LoadNANANANA
1 Piece(s) Same day 10Radial152225Single RowMetric System-18500NANAHMK-Open End11000Heavy LoadNANANANA
1 Piece(s) Same day -Radial162416Single RowMetric System-12400NANAHMK-Open End10000Heavy LoadNANANANA
1 Piece(s) Same day -Radial162420Single RowMetric System-15600NANAHMK-Open End10000Heavy LoadNANANANA
1 Piece(s) Same day -Radial172415Single RowMetric System-12100NANAHMK-Open End9500Heavy LoadNANANANA
1 Piece(s) 11 Day(s) or more 10Radial172420Single RowMetric System-15200NANAHMK-Open End14000Heavy LoadNANANANA
1 Piece(s) 14 Day(s) or more -Radial172420Single RowMetric SystemWeld Shape15200NANAHMKC (Weld Holder)Open End9500Heavy LoadNANANANA
1 Piece(s) 11 Day(s) or more 10Radial172421Single RowMetric System-12100Double-sided Seal TypeAvailableHMK-Open End Double-sided Seal9500Heavy LoadNANANANA
1 Piece(s) 16 Day(s) or more -Radial182513Single RowMetric System-10200NANAHMK-Open End8500Heavy LoadNANANANA
1 Piece(s) 19 Day(s) or more -Radial182515Single RowMetric System-12000NANAHMK-Open End8500Heavy LoadNANANANA
1 Piece(s) 15 Day(s) or more -Radial182517Single RowMetric System-13800NANAHMK-Open End8500Heavy LoadNANANANA
1 Piece(s) 11 Day(s) or more -Radial182519Single RowMetric System-15500NANAHMK-Open End8500Heavy LoadNANANANA
1 Piece(s) 16 Day(s) or more -Radial182520Single RowMetric System-16300NANAHMK-Open End8500Heavy LoadNANANANA
1 Piece(s) Same day -Radial182525Single RowMetric System-20300NANAHMK-Open End8500Heavy LoadNANANANA
1 Piece(s) 19 Day(s) or more -Radial192716Single RowMetric System-13900NANAHMK-Open End8500Heavy LoadNANANANA
1 Piece(s) 11 Day(s) or more -Radial192720Single RowMetric System-17500NANAHMK-Open End8500Heavy LoadNANANANA
1 Piece(s) Same day -Radial202715Single RowMetric System-13000NANAHMK-Open End8000Heavy LoadNANANANA
1 Piece(s) Same day -Radial202720Single RowMetric System-17700NANAHMK-Open End8000Heavy LoadNANANANA
1 Piece(s) Same day -Radial202725Single RowMetric System-22000NANAHMK-Open End8000Heavy LoadNANANANA
1 Piece(s) 11 Day(s) or more 10Radial202725Single RowMetric SystemWeld Shape22000NANAHMKC (Weld Holder)Open End12000Heavy LoadNANANANA
1 Piece(s) 11 Day(s) or more 10Radial202726Single RowMetric System-17700Double-sided Seal TypeAvailableHMK-Open End Double-sided Seal8000Heavy LoadNANANANA
1 Piece(s) Same day -Radial202730Single RowMetric System-26100NANAHMK-Open End8000Heavy LoadNANANANA
1 Piece(s) 11 Day(s) or more 10Radial212920Single RowMetric System-19400NANAHMK-Open End7500Heavy LoadNANANANA
1 Piece(s) 11 Day(s) or more -Radial222910Single RowMetric System-8400NANAHMK-Open End7500Heavy LoadNANANANA
1 Piece(s) 11 Day(s) or more -Radial222925Single RowMetric System-23600NANAHMK-Open End7500Heavy LoadNANANANA
1 Piece(s) 8 Day(s) 10Radial222930Single RowMetric System-26900NANAHMK-Open End7500Heavy LoadNANANANA
1 Piece(s) 19 Day(s) or more 10Radial243120Single RowMetric System-18800NANAHMK-Open End6500Heavy LoadNANANANA
1 Piece(s) 16 Day(s) or more -Radial243128Single RowMetric System-26000NANAHMK-Open End6500Heavy LoadNANANANA
1 Piece(s) 19 Day(s) or more -Radial253310Single RowMetric System-9150NANAHMK-Open End6500Heavy LoadNANANANA

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Basic Information

Raceway Ring Shape Needle Roller Outer Ring With Outer Ring Inner/Outer Ring Material Steel
Specifications/Environment Standard Rolling Element Material Steel Outer Ring Type Flat

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