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Drawn Cup Needle Roller Bearing, Outer Ring (BK1516)

Drawn Cup Needle Roller Bearing, Outer Ring BK1516

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  • Drawn Cup Needle Roller Bearing, Outer Ring
  • Drawn Cup Needle Roller Bearing, Outer Ring BK1516
  • On Sale Till 31/03/2025

NTN

NTN

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 in the near future.
    There are no the replacement for these items and no plans to resume sales. Please check the quotation and order screen for details.
  • Product supply for some items in this series are unstable and may experience either longer delivery time or sales suspension.

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Japanese Only

Part Number

Configured Part Number is shown.

BK1516

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.
30
45
60
  1. 1
Part Number
BK1516
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipRoHSRaceway Ring Shape Load Direction Outer Ring Inner Dia. d
(Ø) 		Outer Dia. D
(Ø) 		Width B
(mm) 		Inner/Outer Ring Material Number of Raceway Ring Rows Size Standards Rolling Element Material Outer Ring Type 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)

SGD 5.00

1 Piece(s) 4 Day(s) or more 10Needle RollerRadialWith Outer Ring152116SteelSingle RowMetric SystemSteelFlat-10700NANABK-Closed End11000StandardNANANANA

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  1. 1
 

Basic Information

Specifications/Environment Standard

Please check the type/dimensions/specifications of the part BK1516 in the Drawn Cup Needle Roller Bearing, Outer Ring series.

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Specification/Dimensions

  • Retainer Type

    • Resin Forming
    • Weld Shape

    Clear

  • Holder Symbol

    • T2 (Polyamide Resin Forming Holder)
    • C (Weld Holder)

    Clear

  • type

    • 7E-HMK
    • 7□□
    • BK
    • DCL
    • HK
    • HMK

    Clear

  • Raceway Ring Shape

    • Needle Roller

    Clear

  • Load Direction

    • Radial
    • Thrust

    Clear

  • Outer Ring

    • With Outer Ring

    Clear

  • Inner Dia. d(Ø)

    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 12
    • 12.700(1/2)
    • 14
    • 15
    • 16
    • 17
    • 18
    • 19
    • 20
    • 21
    • 22
    • 24
    • 25
    • 26
    • 28
    • 29
    • 30
    • 32
    • 35
    • 38
    • 40
    • 45
    • 50

    Clear

  • Outer Dia. D(Ø)

    • 6.5
    • 8
    • 9
    • 10
    • 11
    • 12
    • 13
    • 14
    • 15
    • 16
    • 17
    • 17.462(11/16)
    • 18
    • 19
    • 20
    • 21
    • 22
    • 24
    • 25
    • 26
    • 27
    • 28
    • 29
    • 31
    • 32
    • 33
    • 34
    • 35
    • 37
    • 38
    • 40
    • 42
    • 45
    • 47
    • 48
    • 50
    • 52
    • 55
    • 58
    • 62

    Clear

  • Width B(mm)

    • 6
    • 8
    • 9
    • 10
    • 12
    • 12.700(1/2)
    • 13
    • 14
    • 15
    • 16
    • 17
    • 18
    • 19
    • 20
    • 21
    • 22
    • 23
    • 25
    • 26
    • 28
    • 30
    • 31
    • 38
    • 40

    Clear

  • Inner/Outer Ring Material

    • Steel

    Clear

  • Number of Raceway Ring Rows

    • Single Row
    • Double Row

    Clear

  • Size Standards

    • Metric System
    • Inch Base

    Clear

  • Rolling Element Material

    • Steel

    Clear

  • Outer Ring Type

    • Flat

    Clear

  • Sealing Structure

    • Double-sided Seal Type
    • Double-sided seal type
    • NA
    • One-sided Seal Type

    Clear

  • Lubricant

    • Available
    • N/A
    • NA

    Clear

  • Format symbol

    • 7E-HMK
    • BK
    • DCL
    • HK
    • HMK

    Clear

  • Specifications

    • Closed End
    • Open End
    • Open End Double-sided Seal
    • Open End Multiple-Row Type
    • Open End One-sided Seal

    Clear

  • Revolution Frequency(rpm)

    • 1000
    • 3200
    • 3700
    • 4000
    • 4300
    • 4600
    • 4700
    • 4800
    • 5000
    • 5500
    • 6000
    • 6500
    • 7000
    • 7500
    • 8000
    • 8500
    • 9500
    • 10000
    • 11000
    • 12000
    • 13000
    • 14000
    • 15000
    • 16000
    • 18000
    • 20000
    • 23000
    • 24000
    • 27000
    • 30000
    • 33000
    • 37000

    Clear

  • Series

    • Heavy Load
    • Heavy duty
    • Inch
    • Standard

    Clear

  • Case hardening (outer ring only)

    • Case hardening
    • N/A
    • NA

    Clear

  • Outer ring oil hole

    • Available
    • N/A
    • NA

    Clear

  • Premium shell bearing

    • Available
    • N/A
    • NA

    Clear

  • Post-assembly heat treatment (pre-bent type)

    • Available
    • N/A
    • NA

    Clear

  • CAD

    • 2D
    • 3D

    Clear

Days to Ship

    • All
    • Same day
    • 4 Day(s) or Less
    • 7 Day(s) or Less
    • 8 Day(s) or Less
    • 10 Day(s) or Less
    • 13 Day(s) or Less

    Clear

Specify Alterations

Similar Part Numbers

Part Number
7E-HMK3220
7E-HMK3230
7E-HMK4020
BK1816
BK2016
DCL88
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipRoHSRaceway Ring Shape Load Direction Outer Ring Inner Dia. d
(Ø) 		Outer Dia. D
(Ø) 		Width B
(mm) 		Inner/Outer Ring Material Number of Raceway Ring Rows Size Standards Rolling Element Material Outer Ring Type 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)

SGD 12.72

1 Piece(s) 10 Day(s) or more -Needle RollerRadialWith Outer Ring324220SteelSingle RowMetric SystemSteelFlat-27500NANAHMK-Open End5000Heavy LoadCase hardeningNANANA

SGD 13.73

1 Piece(s) 10 Day(s) or more 10Needle RollerRadialWith Outer Ring324230SteelSingle RowMetric SystemSteelFlat-41500NANAHMK-Open End5000Heavy LoadCase hardeningNANANA

SGD 15.10

1 Piece(s) 10 Day(s) or more -Needle RollerRadialWith Outer Ring405020SteelSingle RowMetric SystemSteelFlat-32500NANAHMK-Open End4000Heavy LoadCase hardeningNANANA

SGD 5.50

1 Piece(s) 7 Day(s) or more 10Needle RollerRadialWith Outer Ring182416SteelSingle RowMetric SystemSteelFlat-11800NANABK-Closed End8500StandardNANANANA

SGD 5.90

1 Piece(s) 7 Day(s) or more 10Needle RollerRadialWith Outer Ring202616SteelSingle RowMetric SystemSteelFlat-13000NANABK-Closed End8000StandardNANANANA

SGD 6.10

1 Piece(s) Same day 10Needle RollerRadialWith Outer Ring12.700(1/2)17.462(11/16)12.700(1/2)SteelSingle RowInch BaseSteelFlat-6700NANADCL-Open End13000InchNANANANA

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