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NTN Roller Bearings（Number of Raceway Ring Rows：Single Row）
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13 itemsMặt hàng
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Tapered Roller Bearing (Separate Type)
NTN
Bearing with a tapered raceway on the inner and outer races.Tapered trapezoidal rollers are assembled as a rolling element and guided by a large flange of the inner race.[Features]·It can support radial loads and unidirectional axial loads.·The separated design allows the inner race and outer race to be installed separately.[Application]·For machine tools, motors, pumps, etc.
- Volume Discount
Inner Dia. d(Ø) Outer Dia. D(Ø) Raceway Ring Shape Load Direction Width B(mm) Outer Ring Number of Raceway Ring Rows Inner/Outer Ring Material Specifications Outer Ring Type Precision (JIS) Rolling Element Material Size Standards 15 ～ 260 35 ～ 400 Cone Roller Radial / Thrust 11.75 ～ 87 - Single Row Steel Standard Flat Class 4 / Class 5 Steel Metric System / Inch System From: 81,250 VND Special Price Days to Ship: Số ngày giao hàng: Same day or more 
Same day or more
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Drawn Cup Needle Roller Bearing, Outer Ring
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.
Inner Dia. d(Ø) Outer Dia. D(Ø) Raceway Ring Shape Load Direction Width B(mm) Outer Ring Number of Raceway Ring Rows Inner/Outer Ring Material Specifications Outer Ring Type Precision (JIS) Rolling Element Material Size Standards 3 ～ 50 6.5 ～ 62 Needle Roller Radial / Thrust 6 ～ 31 With Outer Ring Single Row Steel Standard Flat - Steel Metric System / Inch System From: 36,250 VND Special Price Days to Ship: Số ngày giao hàng: Same day or more
Same day or more
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Thrust Roller Bearing(Φ10～Φ160)
NTN
A roller bearing with thrust cage into which needle rollers are radially incorporated into the cage.Products on this page: AXK type, AS type, GS type and WS type
Inner Dia. d(Ø) Outer Dia. D(Ø) Raceway Ring Shape Load Direction Width B(mm) Outer Ring Number of Raceway Ring Rows Inner/Outer Ring Material Specifications Outer Ring Type Precision (JIS) Rolling Element Material Size Standards 10 ～ 162 24 ～ 200 Needle Roller Thrust 1 ～ 9.5 With Outer Ring / W/o Outer Ring Single Row Steel Standard - Class 0 Steel Metric System From: 11,000 VND Special Price Days to Ship: Số ngày giao hàng: Same day or more
Same day or more
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Solid Type Needle Roller Bearing
NTN
A solid needle roller bearing.[Features]·The solid (machined) outer race enables high rigidity.·The bearing accuracy can also be increased, making it ideal for applications that require high speed, high load, and high rotational accuracy.·In addition to the type with inner race, the type without inner race is also available in which the shaft can be used directly as a raceway instead of inner race.[Application]・ Heavy load, high speed, gearbox for automobiles, etc.・ Steel equipment, mining / construction machinery, machine tools.
Inner Dia. d(Ø) Outer Dia. D(Ø) Raceway Ring Shape Load Direction Width B(mm) Outer Ring Number of Raceway Ring Rows Inner/Outer Ring Material Specifications Outer Ring Type Precision (JIS) Rolling Element Material Size Standards 5 ～ 330 10 ～ 380 Needle Roller Radial 8 ～ 100 With Outer Ring Single Row Steel Standard Flat Class 0 / Class 4 Steel Metric System / Inch System From: 122,170 VND Special Price Days to Ship: Số ngày giao hàng: Same day or more
Same day or more
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Cylindrical Roller Bearing (Radial)
NTN
A bearing with a simple shape in which cylindrical rollers and a raceway are in linear contact.[Features]·Large load capacity primarily for receiving radial loads.·The friction between the rolling elements and the flange of bearing ring is small making it ideal for high-speed rotation.·Various options can be selected according to applications, such as flange on both inner and outer races, no flange, separable type, and axial load bearable.[Application]·For machine tools, motors, pumps, etc.
Inner Dia. d(Ø) Outer Dia. D(Ø) Raceway Ring Shape Load Direction Width B(mm) Outer Ring Number of Raceway Ring Rows Inner/Outer Ring Material Specifications Outer Ring Type Precision (JIS) Rolling Element Material Size Standards 20 ～ 280 47 ～ 420 Cylindrical Roller Radial 12 ～ 120 - Single Row Steel Standard / For High Speed - Class 0 / Class 5 Steel - From: 388,340 VND Days to Ship: Số ngày giao hàng: Same day or more
Same day or more
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SL Type Cylindrical Roller Bearing
NTN
Designed as a thin wall type, the SL Model double-row cylindrical roller bearing supports enormous radial and impact loads. Therefore, it is ideal for use in parts subject to medium low-speed large loads. This bearing has various uses, such as in construction machinery, vehicles, steel machinery and lifting equipment, etc.
Inner Dia. d(Ø) Outer Dia. D(Ø) Raceway Ring Shape Load Direction Width B(mm) Outer Ring Number of Raceway Ring Rows Inner/Outer Ring Material Specifications Outer Ring Type Precision (JIS) Rolling Element Material Size Standards 40 ～ 190 68 ～ 240 Cylindrical Roller Radial 22 ～ 95 With Outer Ring Single Row Steel Standard Flat / With Retaining Ring Grooves Class 0 Steel Metric System From: 1,808,608 VND Days to Ship: Số ngày giao hàng: Same day or more
Same day or more
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NTN
A basic component of needle roller bearing, in which needle rollers are assembled with retainer to prevent separation.[Features]·A shaft or housing can be used directly as a raceway without an inner race or outer race, realizing the compact and lightweight design.·The retainer allows needle rollers to be guided more accurately than full complement rollers, enabling high-speed rotation.·Rigidity and load capacity are large for the space.[Application]·Ideal for heavy duty, high speeds, automobile gearboxes, etc.·Ideal for steel equipment, mining/construction machinery, and machine tools.
Inner Dia. d(Ø) Outer Dia. D(Ø) Raceway Ring Shape Load Direction Width B(mm) Outer Ring Number of Raceway Ring Rows Inner/Outer Ring Material Specifications Outer Ring Type Precision (JIS) Rolling Element Material Size Standards 3 ～ 165 6 ～ 173 Needle Roller Radial 7 ～ 34 W/o Outer Ring Single Row Steel Standard - Class 0 Steel Metric System From: 51,840 VND Days to Ship: Số ngày giao hàng: Same day or more
Same day or more
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Needle Roller Bearing, Thrust Roller Bearing, WS Type Raceway Ring
NTN
Disc-shaped raceway that is used for the inner race of thrust needle roller bearings.[Features]·Suitable for high-load applications and has a large axial rigidity allowing it to receive axial load only.[Application]·Ideal for steel equipment, pumps, machine tools, wind power generation, etc.
Inner Dia. d(Ø) Outer Dia. D(Ø) Raceway Ring Shape Load Direction Width B(mm) Outer Ring Number of Raceway Ring Rows Inner/Outer Ring Material Specifications Outer Ring Type Precision (JIS) Rolling Element Material Size Standards 35 ～ 140 62 ～ 200 Cylindrical Roller Thrust 5 ～ 13.5 - Single Row Steel Standard Flat - Steel Metric System From: 246,096 VND Days to Ship: Số ngày giao hàng: 7 Day(s) or more
7 Day(s) or more
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NTN
[Features]·Needle rollers with a flat cage, in which needle rollers are incorporated in a flat cage. By inserting this bearing between two opposing planes, it is possible to achieve smooth reciprocating motion with a low coefficient of friction.
Inner Dia. d(Ø) Outer Dia. D(Ø) Raceway Ring Shape Load Direction Width B(mm) Outer Ring Number of Raceway Ring Rows Inner/Outer Ring Material Specifications Outer Ring Type Precision (JIS) Rolling Element Material Size Standards - - Cylindrical Roller Thrust 2 ～ 3.5 - Single Row Steel Standard - - Steel Metric System From: 70,520 VND Days to Ship: Số ngày giao hàng: Same day or more
Same day or more
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Needle Roller Bearings with Thrust Ball Bearings
NTN
Thrust roller bearing with single, double, three, and four-row series as well as their combinations.[Features]·Only axial loads can be received.·The large axial rigidity makes it ideal for high-load applications.[Application]Ideal for steel equipment, pumps, machine tools, wind power generation, etc.
Inner Dia. d(Ø) Outer Dia. D(Ø) Raceway Ring Shape Load Direction Width B(mm) Outer Ring Number of Raceway Ring Rows Inner/Outer Ring Material Specifications Outer Ring Type Precision (JIS) Rolling Element Material Size Standards 10 ～ 70 19 ～ 85 Needle Roller Thrust 23 ～ 40 - Single Row Steel Standard Flat - Steel Metric System From: 426,670 VND Days to Ship: Số ngày giao hàng: Same day or more
Same day or more
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Self-Aligning Thrust Roller Bearing
NTN
The roller bearing has a self-aligning property and uses barrel-shaped rollers as rolling elements.[Features]·The spherical bearing raceway of the housing race disc and the center shaft of the bearing share the same center point.·Has a large load capacity for axial load.·While being under an axial load, a certain level of radial load can also be applied.·The retainer is a machined copper alloy retainer and has a guiding sleeve attached on the inner race, which guides the retainer.·Lubrication is necessary even for rotation at a low speed.[Application]·Ideal for areas subject to large axial loads, machine tools, construction machinery, etc.
Inner Dia. d(Ø) Outer Dia. D(Ø) Raceway Ring Shape Load Direction Width B(mm) Outer Ring Number of Raceway Ring Rows Inner/Outer Ring Material Specifications Outer Ring Type Precision (JIS) Rolling Element Material Size Standards 60 ～ 380 130 ～ 520 Self-Aligning Roller Thrust 39 ～ 115 With Outer Ring Single Row Steel Standard Flat Class 0 Steel Metric System From: 5,722,500 VND Days to Ship: Số ngày giao hàng: 4 Day(s) or more
4 Day(s) or more
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Cylindrical Thrust Roller Bearing
NTN
[Features]·Able to receive axial load only and ideal for high load applications.·Has one of the greatest axial rigidity.[Application]·Ideal for steel equipment, pumps, machine tools, wind power generation, etc.
Inner Dia. d(Ø) Outer Dia. D(Ø) Raceway Ring Shape Load Direction Width B(mm) Outer Ring Number of Raceway Ring Rows Inner/Outer Ring Material Specifications Outer Ring Type Precision (JIS) Rolling Element Material Size Standards 15 ～ 160 28 ～ 200 Cylindrical Roller Thrust 2.75 ～ 12.5 - Single Row Steel Standard Flat - Steel Metric System From: 248,340 VND Days to Ship: Số ngày giao hàng: Same day or more
Same day or more
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Thrust Cylindrical Roller Bearings, GS-shaped bearing ring
NTN
[Features]·The bearing combines rollers, a disk-shaped bearing ring, and a thrust retainer in which needle-shaped or cylindrical rollers are installed radially, and bears an unidirectional axial load.·A shaft and housing can also be used directly as a raceway without a bearing ring, which enables low-profile, lightweight and compact design structures.·This type of thrust roller bearing is not capable of performing a theoretically perfect rolling motion and will experience slippage on the raceway surface; however, in most cases, it does not hinder practical use and can rotate at a relatively high speed.
Inner Dia. d(Ø) Outer Dia. D(Ø) Raceway Ring Shape Load Direction Width B(mm) Outer Ring Number of Raceway Ring Rows Inner/Outer Ring Material Specifications Outer Ring Type Precision (JIS) Rolling Element Material Size Standards 30 ～ 140 52 ～ 200 Cylindrical Roller Radial 4.25 ～ 13.5 - Single Row Steel Standard Flat - Steel Metric System From: 220,916 VND Days to Ship: Số ngày giao hàng: 4 Day(s) or more
4 Day(s) or more
| BrandNhãn hiệu |
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| Product SeriesDòng sản phẩm |
| CADCAD |
| From |
| Days to ShipSố ngày giao hàng |
| Inner Dia. d(Ø) |
| Outer Dia. D(Ø) |
| Raceway Ring Shape |
| Load Direction |
| Width B(mm) |
| Outer Ring |
| Number of Raceway Ring Rows |
| Inner/Outer Ring Material |
| Specifications |
| Outer Ring Type |
| Precision (JIS) |
| Rolling Element Material |
| Size Standards |
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| BrandNhãn hiệu | NTN | NTN | NTN | NTN | NTN | NTN | NTN | NTN | NTN | NTN | NTN | NTN | NTN |
| Product SeriesDòng sản phẩm | Needle Roller Bearing, Thrust Roller Bearing, WS Type Raceway Ring | ||||||||||||
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| From | 81,250 VND Special Price On Sale Till 31/03/2025 | 36,250 VND Special Price On Sale Till 31/03/2025 | 11,000 VND Special Price On Sale Till 31/03/2025 | 122,170 VND Special Price On Sale Till 31/03/2025 | 388,340 VND- | 1,808,608 VND- | 51,840 VND- | 246,096 VND- | 70,520 VND- | 426,670 VND- | 5,722,500 VND- | 248,340 VND- | 220,916 VND- |
| Days to ShipSố ngày giao hàng | Same day or more | Same day or more | Same day or more | Same day or more | Same day or more | Same day or more | Same day or more | 7 Day(s) or more | Same day or more | Same day or more | 4 Day(s) or more | Same day or more | 4 Day(s) or more |
| Inner Dia. d(Ø) | 15 ～ 260 | 3 ～ 50 | 10 ～ 162 | 5 ～ 330 | 20 ～ 280 | 40 ～ 190 | 3 ～ 165 | 35 ～ 140 | - | 10 ～ 70 | 60 ～ 380 | 15 ～ 160 | 30 ～ 140 |
| Outer Dia. D(Ø) | 35 ～ 400 | 6.5 ～ 62 | 24 ～ 200 | 10 ～ 380 | 47 ～ 420 | 68 ～ 240 | 6 ～ 173 | 62 ～ 200 | - | 19 ～ 85 | 130 ～ 520 | 28 ～ 200 | 52 ～ 200 |
| Raceway Ring Shape | Cone Roller | Needle Roller | Needle Roller | Needle Roller | Cylindrical Roller | Cylindrical Roller | Needle Roller | Cylindrical Roller | Cylindrical Roller | Needle Roller | Self-Aligning Roller | Cylindrical Roller | Cylindrical Roller |
| Load Direction | Radial / Thrust | Radial / Thrust | Thrust | Radial | Radial | Radial | Radial | Thrust | Thrust | Thrust | Thrust | Thrust | Radial |
| Width B(mm) | 11.75 ～ 87 | 6 ～ 31 | 1 ～ 9.5 | 8 ～ 100 | 12 ～ 120 | 22 ～ 95 | 7 ～ 34 | 5 ～ 13.5 | 2 ～ 3.5 | 23 ～ 40 | 39 ～ 115 | 2.75 ～ 12.5 | 4.25 ～ 13.5 |
| Outer Ring | - | With Outer Ring | With Outer Ring / W/o Outer Ring | With Outer Ring | - | With Outer Ring | W/o Outer Ring | - | - | - | With Outer Ring | - | - |
| Number of Raceway Ring Rows | Single Row | Single Row | Single Row | Single Row | Single Row | Single Row | Single Row | Single Row | Single Row | Single Row | Single Row | Single Row | Single Row |
| Inner/Outer Ring Material | Steel | Steel | Steel | Steel | Steel | Steel | Steel | Steel | Steel | Steel | Steel | Steel | Steel |
| Specifications | Standard | Standard | Standard | Standard | Standard / For High Speed | Standard | Standard | Standard | Standard | Standard | Standard | Standard | Standard |
| Outer Ring Type | Flat | Flat | - | Flat | - | Flat / With Retaining Ring Grooves | - | Flat | - | Flat | Flat | Flat | Flat |
| Precision (JIS) | Class 4 / Class 5 | - | Class 0 | Class 0 / Class 4 | Class 0 / Class 5 | Class 0 | Class 0 | - | - | - | Class 0 | - | - |
| Rolling Element Material | Steel | Steel | Steel | Steel | Steel | Steel | Steel | Steel | Steel | Steel | Steel | Steel | Steel |
| Size Standards | Metric System / Inch System | Metric System / Inch System | Metric System | Metric System / Inch System | - | Metric System | Metric System | Metric System | Metric System | Metric System | Metric System | Metric System | Metric System |
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ConfigureTạo
Specification/DimensionsĐặc điểm kỹ thuật / Kích thướcĐặc điểm kỹ thuật / Kích thước
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Inner Dia. d(Ø)
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 12
- 12.7
- 12.700(1/2)
- 13
- 14
- 14.288
- 15
- 16
- 17
- 17.462
- 18
- 19
- 19.05
- 20
- 21
- 21.430
- 21.986
- 22
- 22.225
- 24
- 25
- 25.4
- 26
- 28
- 29
- 30
- 31.75
- 32
- 34.925
- 34.925(1 3/8)
- 34.988
- 35
- 37
- 38
- 38.1
- 40
- 41.275
- 42
- 43
- 45
- 47
- 48
- 50
- 50.8
- 52
- 55
- 57
- 58
- 60
- 62
- 63
- 63.5
- 65
- 67
- 68
- 70
- 72
- 73
- 75
- 77
- 80
- 82
- 85
- 87
- 90
- 92
- 95
- 100
- 102
- 105
- 110
- 112
- 115
- 120
- 122
- 125
- 130
- 132
- 135
- 140
- 145
- 150
- 155
- 160
- 162
- 165
- 170
- 175
- 180
- 190
- 195
- 200
- 205
- 220
- 225
- 240
- 245
- 260
- 265
- 280
- 285
- 290
- 300
- 320
- 330
- 340
- 360
- 380
- 400
- 420
- 440
- 460
- 480
-
Outer Dia. D(Ø)
- 6
- 6.5
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 17.462(11/16)
- 18
- 19
- 19.05
- 20
- 20.638
- 21
- 22
- 23
- 23.812
- 24
- 25
- 26
- 27
- 28
- 29
- 30
- 30.162
- 31
- 32
- 33
- 33.338
- 34
- 35
- 36
- 37
- 38
- 38.1
- 39
- 39.878
- 40
- 42
- 43
- 44
- 44.45
- 45
- 45.237
- 45.974
- 47
- 47.625(1 7/8)
- 48
- 49
- 50
- 50.005
- 50.292
- 52
- 53
- 54
- 55
- 56
- 57
- 58
- 59
- 59.131
- 59.974
- 60
- 61
- 62
- 63
- 64
- 65
- 65.088
- 66
- 66.5
- 67
- 68
- 70
- 71.5
- 72
- 73
- 73.025
- 74
- 75
- 76.2
- 77
- 78
- 80
- 81
- 82
- 83
- 85
- 86
- 88
- 89
- 90
- 92
- 93.264
- 95
- 98
- 100
- 102
- 105
- 108
- 110
- 112.712
- 115
- 117
- 120
- 125
- 127
- 130
- 135
- 137
- 140
- 145
- 150
- 153
- 155
- 160
- 165
- 170
- 173
- 175
- 178
- 180
- 188
- 190
- 200
- 210
- 215
- 220
- 225
- 230
- 240
- 250
- 260
- 270
- 280
- 290
- 300
- 310
- 320
- 340
- 360
- 370
- 380
- 400
- 420
- 440
- 460
- 480
- 500
- 520
- 540
- 560
- 580
- 600
- 620
- 650
- 680
- 700
-
Raceway Ring Shape
- Angular Contact Ball
- Cylindrical Roller
- Needle Roller
- Cone Roller
- Self-Aligning Roller
- Complex Shape Roller
- One-Way Clutch
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Load Direction
- Radial
- Thrust
-
Width B(mm)
- 1
- 2
- 2.5
- 2.75
- 3
- 3.5
- 4
- 4.25
- 4.75
- 5
- 5.25
- 5.5
- 5.75
- 6
- 6.5
- 7
- 7.5
- 8
- 8.25
- 8.5
- 9
- 9.5
- 10
- 10.5
- 11
- 11.5
- 11.75
- 12
- 12.5
- 12.7
- 12.700(1/2)
- 13
- 13.25
- 13.5
- 14
- 14.25
- 14.605
- 14.732
- 15
- 15.25
- 15.88
- 16
- 16.25
- 16.637
- 16.764
- 17
- 17.25
- 17.462
- 18
- 18.25
- 18.288
- 19
- 19.05
- 19.25
- 19.75
- 20
- 20.75
- 21
- 21.25
- 21.75
- 22
- 22.25
- 22.75
- 23
- 23.75
- 24
- 24.25
- 24.75
- 25
- 25.25
- 25.4
- 25.40(1)
- 25.650
- 25.654
- 26
- 26.25
- 26.75
- 27
- 27.25
- 28
- 28.25
- 28.75
- 29
- 29.25
- 29.75
- 30
- 30.162
- 30.302
- 30.5
- 31
- 31.5
- 31.75
- 32
- 32.5
- 32.75
- 33
- 33.25
- 33.5
- 34
- 34.5
- 35
- 35.25
- 36
- 37
- 38
- 38.25
- 38.5
- 39
- 40
- 41
- 42
- 42.25
- 42.5
- 43
- 43.5
- 43.75
- 44.5
- 45
- 45.5
- 45.75
- 46
- 46.5
- 47
- 48
- 48.5
- 49
- 49.5
- 50
- 51
- 51.5
- 52
- 53
- 53.5
- 54
- 54.5
- 55
- 56
- 57
- 58
- 59
- 59.5
- 60
- 60.5
- 61
- 61.5
- 62
- 63
- 63.5
- 63.75
- 64
- 65
- 67
- 67.5
- 67.75
- 68
- 69
- 70
- 71.5
- 71.75
- 72
- 73
- 74
- 75
- 76
- 77
- 77.5
- 78
- 79
- 80
- 81.5
- 82
- 83
- 84
- 84.5
- 85
- 86
- 87
- 88
- 89
- 90
- 90.5
- 91
- 92
- 93
- 95
- 96
- 97
- 98
- 98.75
- 100
- 102
- 103
- 104
- 106
- 107.75
- 108
- 109
- 110
- 112
- 114
- 115
- 118
- 120
- 121
- 122
- 126
- 127
- 128
- 130
- 132
- 133
- 134
- 135
- 137
- 138
- 140
- 144
- 145
- 146
- 148
- 150
- 155
- 157
- 160
- 163
- 165
- 174
- 175
- 176
- 190
- 192
- 200
- 208
-
Outer Ring
- With Outer Ring
- W/o Outer Ring
-
Number of Raceway Ring Rows
-
Inner/Outer Ring Material
- Steel
- Stainless Steel
-
Specifications
-
Outer Ring Type
-
Precision (JIS)
- Class 0
- Class 4
- Class 5
-
Rolling Element Material
-
Size Standards
Related Categories to Roller BearingsDanh mục liên quan đến Roller Bearings
FAQ Roller Bearings
- Question: What are the different types of roller bearings?
- Answer: The different types of roller bearings are:
1. Cylindrical Roller Bearings: Suitable for moderate-speed operations with high radial-load capacity and moderate thrust loads.
2. Spherical Roller Bearings: Designed to carry heavy axial and radial loads at high speeds, even with misalignment or shaft deflection. Available with cylindrical or tapered bores.
3. Needle Roller Bearings: Feature thin, long rollers for high radial load capacities in limited space and high-speed rotational applications.
4. Tapered Roller Bearings: Support radial and thrust loads, commonly used in automotive wheel hubs, gearboxes, and industrial equipment. Available in inch and metric sizes. These bearings find applications in various industries, including heavy equipment, machinery and manufacturing. - Question: What are the advantages of using roller bearings?
- Answer: Here are some Advantages of roller bearings:
1. Reduced friction for lower starting and running friction, except at very high speeds.
2. Ability to withstand momentary shock loads.
3. Accurate shaft alignment.
4. Low manufacturing cost.
5. Moderate lubricant requirements and low friction.
6. Capability to support both radial and axial loads.
7. Long bearing life.
8. Suitable for mass production with stable quality.
9. Can support combined radial and thrust loads simultaneously. - Question: How do I choose the right roller bearing for my application?
- Answer: Here are some steps to guide you in selecting the appropriate bearing:
1. Load Requirements: Understand the magnitude and direction of the load to determine the appropriate load capacity.
2. Speed: Consider the rotational speed of the application to ensure it aligns with the bearing's capabilities.
3. Environmental Conditions: Evaluate temperature, humidity, and exposure to contaminants to select a bearing that can withstand the operating environment.
4. Bearing Type: Choose from various types like cylindrical, spherical, needle, or tapered roller bearings based on load, speed, and operating conditions.
5. Bearing Material: Select suitable materials such as stainless steel, chrome steel, ceramic, or plastic, considering load, speed, temperature, and environmental factors.
6. Lubrication Needs: Determine lubrication requirements, including type, viscosity, and replenishment intervals, to ensure smooth operation and longevity.
7. Special Features or Requirements: Consider any specific features like seals, shields, precision tolerances, or coatings needed for your application. - Question: Can roller bearings handle axial loads?
- Answer: Yes, Roller bearings can indeed handle axial loads, though most are designed primarily for radial loads. Certain designs, such as cylindrical roller bearings with flanges on both inner and outer rings, and axial spherical roller bearings, are capable of supporting axial loads. However, roller bearings generally have lower axial load capacities compared to radial loads.
- Question: How do I maintain and lubricate roller bearings?
- Answer: The guidelines for maintaining and lubricating roller bearings effectively including
1. Selection of Lubricant: Choose lubricant based on application and environment, such as mineral oil, synthetic oil, or greases like lithium soap or polyalphaolefin.
2. Lubrication Techniques: Utilize methods such as oil drip feed or grease lubrication.
3. Lubrication Schedule: Establish a schedule based on application and environmental factors and regularly inspect bearings for wear and adjust the schedule accordingly.
4. Monitoring Performance: Regularly monitor for signs of issues such as increased vibration, excessive heat, lubricant loss, or contamination and address any problems promptly to prevent premature bearing failure. - Question: What are the signs of roller bearing failure?
- Answer: Signs of roller bearing failure include excessive vibration, increased temperature, noise, lubricant contamination, and friction. Initial indicators often begin with abnormal vibration, progressing to elevated temperature and noise. Contaminated lubricants exacerbate friction, leading to heat generation and eventual failure.
- Question: How long do roller bearings typically last?
- Answer: The lifespan of roller bearings is determined by factors like rotations or operating hours, with fatigue symptoms indicating failure. The L10 life, representing the hours or rotations before 90% of bearings fail, estimates bearing life. Ratings are based on hours at a set speed, influenced by load, speed, lubrication, and conditions. Average roller bearing life is usually 4 to 5 times the L10 life, potentially longer under favorable conditions.
- Question: Can roller bearings be used in extreme temperatures?
- Answer: Roller bearings have differing temperature thresholds depending on their design, lubrication, and operational conditions. Traditional bearings can typically function in temperatures up to 149°C, while specialized high-temperature bearings can endure temperatures up to 450°C. However, excessive heat can decrease efficiency, induce wear and expansion, and compromise seals or grease. It's vital to select appropriate bearings and lubricants tailored to specific applications and environmental conditions to ensure optimal performance and longevity.
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