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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.
HK type, HMK type (Open-ended type)
HK, ZWD type (Open-ended type)
BK type (Closed end type)
BK ‥ ZWD type (Closed end type)
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 | Compatible shaft diameter (mm) | Nominal Number | Composition and dimensions | Note | ||
---|---|---|---|---|---|---|
HK (HK・・T2) | Standard Series | Open End | ø3 to ø50 | HK0609T2 | Diameter 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・・L | Open End One-sided seal | ø12 to ø50 | HK2018L/3AS | Diameter 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・・LL | Open End Double-sided seal | ø12 to ø50 | HK2020LL/3AS | Diameter of Inscribed Circle: ø20 Width dimensions: 20 LL: Double-sided seal 3AS: Grease | ||
HK・・ZWD | Open End Double row type | ø15 to ø30 | HK2030ZWD | Diameter 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 End | ø8 to ø50 | HMK2015 | Diameter 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・・L | Open End One-sided seal | ø8 to ø50 | HMK2018L/3AS | Diameter 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・・LL | Open End Double-sided seal | ø8 to ø50 | HMK2021LL/3AS | Diameter of Inscribed Circle: ø20 Width dimensions: 20 LL: Double-sided seal 3AS: Grease | ||
HMK・・ZWD | Open End Double row type | ø38 to ø50 | HK3845ZWD | Diameter 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 End | ø3 to ø50 | BK2020C | Diameter 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・・L | Closed End One-sided seal | ø12 to ø50 | BK2018L/3AS | Diameter 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・・ZWD | Closed End Double row type | ø15 to ø30 | BK2030ZWD | Diameter 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. |
The permissible rotational speed is the permissible rotational speed that can be achieved based on the following assumptions.
Part Number |
---|
HMK1616 |
Part Number | Price | Minimum Order Qty. | Volume Discount | Days to Ship | RoHS | Load 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) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
₹ 487.89 | 1 Piece(s) | 5 Day(s) or more | - | Radial | 16 | 24 | 16 | Single Row | Metric System | - | 12400 | NA | NA | HMK | - | Open End | 10000 | Heavy Load | NA | NA | NA | NA |
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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 HMK1616 in the Drawn Cup Needle Roller Bearing, Outer Ring series.
Part Number |
---|
7E-HMK3220 |
7E-HMK3230 |
7E-HMK4020 |
HMK1620 |
HMK1720 |
HMK1720C |
Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | RoHS | Load 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) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
₹ 790.60 | 1 Piece(s) | 11 Day(s) or more | - | Radial | 32 | 42 | 20 | Single Row | Metric System | - | 27500 | NA | NA | HMK | - | Open End | 5000 | Heavy Load | Case hardening | NA | NA | NA | ||
₹ 857.56 | 1 Piece(s) | 11 Day(s) or more | 10 | Radial | 32 | 42 | 30 | Single Row | Metric System | - | 41500 | NA | NA | HMK | - | Open End | 5000 | Heavy Load | Case hardening | NA | NA | NA | ||
₹ 995.53 | 1 Piece(s) | 11 Day(s) or more | - | Radial | 40 | 50 | 20 | Single Row | Metric System | - | 32500 | NA | NA | HMK | - | Open End | 4000 | Heavy Load | Case hardening | NA | NA | NA | ||
₹ 452.80 | 1 Piece(s) | 5 Day(s) or more | - | Radial | 16 | 24 | 20 | Single Row | Metric System | - | 15600 | NA | NA | HMK | - | Open End | 10000 | Heavy Load | NA | NA | NA | NA | ||
₹ 514.67 | 1 Piece(s) | 8 Day(s) or more | 10 | Radial | 17 | 24 | 20 | Single Row | Metric System | - | 15200 | NA | NA | HMK | - | Open End | 14000 | Heavy Load | NA | NA | NA | NA | ||
₹ 503.96 | 1 Piece(s) | 11 Day(s) or more | - | Radial | 17 | 24 | 20 | Single Row | Metric System | Weld Shape | 15200 | NA | NA | HMK | C (Weld Holder) | Open End | 9500 | Heavy Load | NA | NA | NA | NA |
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