(!)Due to Microsoft's end of support for Internet Explorer 11 on 15/06/2022, this site does not support the recommended environment.

  • Notice of End of Sales for Economy Series Pneumatic Equipment Category. More information. 
  • Please note that E-Invoice will be sent to our customers by email. For more information, please read News. 

Drawn Cup Needle Roller Bearing, Outer Ring (BK2016)

Drawn Cup Needle Roller Bearing, Outer Ring BK2016

Click this image to zoom it.

Move the mouse over the image to zoom

  • Drawn Cup Needle Roller Bearing, Outer Ring
  • Drawn Cup Needle Roller Bearing, Outer Ring BK2016

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.

  • Product supply for some items in this series are unstable and may experience either long delivery time or sales suspension.

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
BK2016
Part NumberStandard Unit PriceMinimum 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)

MYR 24.34

1 Piece(s) 7 Day(s) or more 10Radial202616Single RowMetric System-13000NANABK-Closed End8000StandardNANANANA

Loading...

  1. 1

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

Please check the type/dimensions/specifications of the part BK2016 in the Drawn Cup Needle Roller Bearing, Outer Ring series.

  • The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Products like this...

Part Number
7E-HMK3220
7E-HMK3230
7E-HMK4020
DCL88
HK0408T2
HK0609FM
Part NumberStandard Unit PriceMinimum 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)

MYR 48.77

1 Piece(s) 10 Day(s) or more -Radial324220Single RowMetric System-27500NANAHMK-Open End5000Heavy LoadCase hardeningNANANA

MYR 52.70

1 Piece(s) 10 Day(s) or more 10Radial324230Single RowMetric System-41500NANAHMK-Open End5000Heavy LoadCase hardeningNANANA

MYR 60.81

1 Piece(s) 10 Day(s) or more -Radial405020Single RowMetric System-32500NANAHMK-Open End4000Heavy LoadCase hardeningNANANA

MYR 26.97

1 Piece(s) 2 Day(s) 10Radial12.700(1/2)17.462(11/16)12.700(1/2)Single RowInch Base-6700NANADCL-Open End13000InchNANANANA

MYR 17.18

1 Piece(s) 4 Day(s) or more -Radial488Single RowMetric SystemResin Forming1770NANAHKT2 (Polyamide Resin Forming Holder)Open End30000StandardNANANANA

MYR 18.27

1 Piece(s) 2 Day(s) 10Radial6109Single RowMetric System-2920NANAHK-Open End37000StandardNANAAvailableAvailable

Additional Products in this Category

Customers Who Viewed This Item Also Viewed

Tech Support

Factory Automation, Electronics, Tools, & MRO (Maintenance, Repair and Operations)
Tel:(60) 3 7890 6399
9:00am - 6:00pm (Monday - Friday)
9:00am - 1:00pm (Saturday)