Bearing Specification Non-Standard Series
Basic | Bore d | Outer DiameterD | Width W | Radius r | Basic Load Rating KN | |||||||
| Open | Shield Seal | Dynamic C |
Static C0 | |||||||||
| mm | inch | mm | inch | mm | inch | mm | inch | mm | inch | |||
| R156 | 4.763 | 0.1875 | 7.938 | 0.3125 | 2.78 | 0.1094 | 3.18 | 0.1250 | 0.1 | 0.004 | 0.395 | 0.143 |
| R166 | 4.763 | 0.1875 | 9.525 | 0.3750 | 3.18 | 0.1250 | 3.18 | 0.1250 | 0.1 | 0.004 | 0.71 | 0.268 |
| R3 | 4.763 | 0.1875 | 12.700 | 0.5000 | 3.97 | 0.1562 | 4.98 | 0.1960 | 0.15 | 0.006 | 1.31 | 0.49 |
| R3A | 4.763 | 0.1875 | 12.700 | 0.5000 | 4.98 | 0.1960 | 4.98 | 0.1960 | 0.15 | 0.006 | 1.31 | 0.49 |
| R168 | 6.350 | 0.2500 | 9.525 | 0.3750 | 3.18 | 0.1250 | 3.18 | 0.1250 | 0.1 | 0.004 | 0.268 | 0.136 |
| R188 | 6.350 | 0.2500 | 12.700 | 0.5000 | 3.18 | 0.1250 | 4.76 | 0.1875 | 0.15 | 0.006 | 0.83 | 0.37 |
| R4 | 6.350 | 0.2500 | 15.875 | 0.6250 | 4.98 | 0.1960 | 4.98 | 0.1960 | 0.2 | 0.008 | 1.48 | 0.615 |
| R4A | 6.350 | 0.2500 | 19.050 | 0.7500 | 5.56 | 0.2188 | 7.14 | 0.2812 | 0.3 | 0.012 | 2.34 | 0.885 |
| R6 | 9.525 | 0.3750 | 22.225 | 0.8750 | 5.56 | 0.2188 | 7.14 | 0.2812 | 0.3 | 0.012 | 3.3 | 1.4 |
| R8 | 12.70 | 0.5000 | 28.575 | 1.1250 | 6.35 | 0.2500 | 7.94 | 0.3125 | 0.3 | 0.012 | 3.912 | 2.245 |
| R8-7 | 11.113 | 0.4375 | 28.575 | 1.1250 | 6.35 | 0.2500 | … | … | 0.3 | 0.012 | 3.912 | 2.245 |
| R10 | 15.875 | 0.6250 | 34.925 | 1.3750 | 7.14 | 0.2812 | 8.73 | 0.3438 | 0.6 | 0.024 | 4.605 | 2.774 |
| R12 | 19.050 | 0.7500 | 41.275 | 1.6250 | 7.94 | 0.3125 | 11.11 | 0.4375 | 0.6 | 0.024 | 7.246 | 4.445 |
ABEC-1 TOLERANCE CLASS ABEC-1 (P0)
INNER RING | Tolerance in um/s | |||||||||||
d mm | Δdmp | 9 | Vdp⊃2;)0,1 Diameter Series | 2,3,4 | Vdmp | Kia | ΔBs | Vbs | ||||
over | including | high | low | max | max | max | high | low | max | |||
1)0.6 | 2.5 | 0 | -8 | 10 | 8 | 6 | 6 | 10 | 0 | -40 | 12 | |
2.5 | 10 | 0 | -8 | 10 | 8 | 6 | 6 | 10 | 0 | -120 | 15 | |
10 | 18 | 0 | -8 | 10 | 8 | 6 | 6 | 10 | 0 | -120 | 20 | |
18 | 30 | 0 | -10 | 13 | 10 | 8 | 8 | 13 | 0 | -120 | 20 | |
30 | 50 | 0 | -12 | 15 | 12 | 9 | 9 | 15 | 0 | -120 | 20 | |
50 | 80 | 0 | -15 | 19 | 19 | 11 | 11 | 20 | 0 | -150 | 25 | |
OUTER RING | Tolerance in um/s | |||||||||||
D mm | Δdmp | VDp2)4)Open Bearings Diameter Series | Capped Bearings2)3) | Vdmp | Kia | ΔBs | Vbs | |||||
9 | 0，1 | 2，3，4 | 2，3，4 | |||||||||
over | including | high | low | max | max | max | high | low | max | |||
1）2.5 | 6 | 0 | -8 | 10 | 8 | 6 | 10 | 6 | 15 | Identical to ΔBs and VBs of inner ring of same bearing | ||
6 | 18 | 0 | -8 | 10 | 8 | 6 | 10 | 6 | 15 | |||
18 | 30 | 0 | -9 | 12 | 9 | 7 | 12 | 7 | 15 | |||
30 | 50 | 0 | -11 | 14 | 11 | 8 | 16 | 8 | 20 | |||
50 | 80 | 0 | -13 | 16 | 13 | 10 | 20 | 10 | 25 | |||
80 | 120 | 0 | -15 | 19 | 19 | 11 | 26 | 11 | 35 | |||
120 | 150 | 0 | -18 | 23 | 23 | 14 | 30 | 14 | 40 | |||
ABEC-3 TOLERANCE CLASS ABEC-3 (P6)
INNER RING | Tolerance in um/s | |||||||||||
d mm | Δdmp | 9 | Vdp⊃2;)0,1 Diameter Series | 2,3,4 | Vdmp | Kia | ΔBs | Vbs | ||||
over | including | high | low | max | max | max | high | low | max | |||
11)0.6 | 2.5 | 0 | -7 | 9 | 7 | 5 | 5 | 5 | 0 | -40 | 12 | |
2.5 | 10 | 0 | -7 | 9 | 7 | 5 | 5 | 6 | 0 | -120 | 15 | |
10 | 18 | 0 | -7 | 9 | 7 | 5 | 5 | 7 | 0 | -120 | 20 | |
18 | 30 | 0 | -8 | 10 | 8 | 6 | 6 | 8 | 0 | -120 | 20 | |
30 | 50 | 0 | -10 | 13 | 10 | 8 | 8 | 10 | 0 | -120 | 20 | |
50 | 80 | 0 | -12 | 15 | 15 | 9 | 9 | 10 | 0 | -150 | 25 | |
OUTER RING | Tolerance in um/s | |||||||||||
D mm | Δdmp | VDp2)4)Open Bearings Diameter Series | Capped Bearings2)3) | Vdmp | Kia | ΔBs | Vbs | |||||
9 | 0，1 | 2，3，4 | 2,3,4 | |||||||||
over | including | high | low | max | max | max | high | low | max | |||
1）2.5 | 6 | 0 | -7 | 9 | 7 | 5 | 9 | 5 | 8 | Identical to ΔBs and VBs of inner ring of same bearing | ||
6 | 18 | 0 | -7 | 9 | 7 | 5 | 9 | 5 | 8 | |||
18 | 30 | 0 | -8 | 10 | 8 | 6 | 10 | 6 | 9 | |||
30 | 50 | 0 | -9 | 11 | 9 | 7 | 13 | 7 | 10 | |||
50 | 80 | 0 | -11 | 14 | 11 | 8 | 16 | 8 | 13 | |||
80 | 120 | 0 | -13 | 16 | 16 | 10 | 20 | 10 | 18 | |||
120 | 150 | 0 | -15 | 19 | 19 | 11 | 25 | 11 | 20 | |||
ABEC-5 TOLERANCE CLASS ABEC-5 (P5)
INNER RING | Tolerance in um/s | |||||||||||
d mm | Δdmp | Vdp⊃2;)Diameter Series | Vdmp | Kia | Sd | Sis3) | ΔBs | Vbs | ||||
9 | 0,1,2,3,4 | |||||||||||
over | including | high | low | max | 3 | max | max | max | High | Low | max | |
1)0.6 | 2.5 | 0 | -5 | 5 | 4 | 3 | 4 | 7 | 7 | 0 | -40 | 5 |
2.5 | 10 | 0 | -5 | 5 | 4 | 3 | 4 | 7 | 7 | 0 | -40 | 5 |
10 | 18 | 0 | -5 | 5 | 4 | 3 | 4 | 7 | 7 | 0 | -80 | 5 |
18 | 30 | 0 | -6 | 6 | 5 | 3 | 4 | 8 | 8 | 0 | -120 | 5 |
30 | 50 | 0 | -8 | 8 | 6 | 4 | 5 | 8 | 8 | 0 | -120 | 5 |
50 | 80 | 0 | -9 | 9 | 7 | 5 | 5 | 8 | 8 | 0 | -150 | 6 |
OUTER RING | Tolerance in um/s | |||||||||||
D mm | Δdmp | Vdp⊃2;)Diameter Series | Vdmp | Kia | SD4) SD15) | Sea4）5） | ΔBs | Vbs | ||||
9 | 0,1,2,3,4 | |||||||||||
over | including | high | low | max | max | max | max | High | Low | max | ||
1)2.5 | 6 | 0 | -5 | 5 | 4 | 3 | 5 | 8 | 8 | 5 | ||
6 | 18 | 0 | -5 | 5 | 4 | 3 | 5 | 8 | 8 | 5 | ||
18 | 30 | 0 | -6 | 6 | 5 | 3 | 6 | 8 | 8 | 5 | ||
30 | 50 | 0 | -7 | 7 | 5 | 4 | 7 | 8 | 8 | 5 | ||
50 | 80 | 0 | -9 | 9 | 7 | 5 | 8 | 8 | 10 | 6 | ||
80 | 120 | 0 | -10 | 10 | 8 | 5 | 10 | 9 | 11 | 8 | ||
120 | 150 | 0 | -11 | 11 | 8 | 6 | 11 | 10 | 13 | 8 | ||
ABEC-7 TOLERANCE CLASS ABEC-7 (P4)
INNER RING | Tolerance in um/s | ||||||||||||||
d mm | Δdmp | Δds | Vdp⊃2;)Diameter Series | Vdmp | Kia | Sd | Sia | ΔBs | Vbs | ||||||
7，8,9 | 1,7,2,3,4 | ||||||||||||||
over | including | high | low | high | low | max | max | max | max | max | High | low | Low | max | |
1)0.6 | 2.5 | 0 | -4 | 0 | -4 | 4 | 3 | 2 | 2.5 | 3 | 3 | 0 | -40 | -40 | 2.5 |
2.5 | 10 | 0 | -4 | 0 | -4 | 4 | 3 | 2 | 2.5 | 3 | 3 | 0 | -40 | -40 | 2.5 |
10 | 18 | 0 | -4 | 0 | -4 | 4 | 3 | 2 | 2.5 | 3 | 3 | 0 | -80 | -80 | 2.5 |
18 | 30 | 0 | -5 | 0 | -5 | 5 | 4 | 2.5 | 3 | 4 | 4 | 0 | -120 | -120 | 2.5 |
30 | 50 | 0 | -6 | 0 | -5 | 6 | 4 | 3 | 4 | 4 | 4 | 0 | -120 | -120 | 3 |
50 | 80 | 0 | -7 | 0 | -5 | 7 | 5 | 3.5 | 4 | 5 | 5 | 0 | -150 | -150 | 4 |
OUTER RING | Tolerance in um/s | ||||||||||||||
D mm | Δdmp | Δds | Vdp⊃2;)Diameter Series | Vdmp | Kia | Sd | Sia | ΔBs | Vbs | ||||||
7，8,9 | 1,7,2,3,4 | ||||||||||||||
over | including | high | low | high | low | max | max | max | max | max | High | low | max | ||
1)2.5 | 6 | 0 | -4 | 0 | -4 | 4 | 3 | 2 | 3 | 4 | 5 | Identical to ΔBs and VBs of inner ring of same bearing | 2.5 | ||
6 | 18 | 0 | -4 | 0 | -4 | 4 | 3 | 2 | 3 | 4 | 5 | 2.5 | |||
18 | 30 | 0 | -5 | 0 | -5 | 5 | 4 | 2.5 | 4 | 4 | 5 | 2.5 | |||
30 | 50 | 0 | -6 | 0 | -6 | 6 | 5 | 3 | 5 | 4 | 5 | 2.5 | |||
50 | 80 | 0 | -7 | 0 | -7 | 7 | 5 | 3.5 | 5 | 4 | 5 | 3 | |||
80 | 120 | 0 | -8 | 0 | -8 | 8 | 6 | 4 | 6 | 5 | 6 | 4 | |||
120 | 150 | 0 | -9 | 0 | -9 | 9 | 7 | 5 | 7 | 5 | 7 | 5 | |||
Company brand | Product | Base oil | Usage range | Characteristics |
EXXON | Multemp SRL | Polyol ester+Diester | （-50，+150） | Excellent noise suppressantproperty and extended performance life |
Multemp PS | Diester+Refined mineral oil | （-50，+130） | Excellent low temperature performance,has outstanding noise suppressant property | |
Multemp SM-B | Synthetic hydrocarbon | （-50，+200） | Long service life under high temperature,Excellent low temperature performance,has high speed operation,low noise property | |
Multemp ET-K | Synthetic ether+Polyol ester | （-40≥，+200） | Has more extended life under high operating temperature condition | |
MOBILE | Polyrex EM | Mineral grease | （-40，+180） | Long life and high temperature |
Beacon325 | Synthetic grease | （-54，+150） | General purpose grease | |
Andok C | Channeling petroleum grease | （-27，+120） | Smooth running,long life with minimum migration | |
CHEVRON | Mobil 28(MIL-G-81322) | Synthetic hydrocarbon | （-54，+177） | Wide temperature range,good low temperature torque |
Mobil HP | Lithium complex | （-30，+110） | Vibration,moderate speed and good corrosion resistance | |
SHELL | SRI-2 | Mineral grease | （-30，+180） | High temperature range,good water resistance |
DUPONT | Alvania 2 | Mineral grease | （-35，+120） | Long life and high temperature |
RLQ #2 | Mineral grease | （-50，+150） | Low noise,high speed and high temperature | |
KLUBER | ASONIC | Synthetic hydrocarbon | （-50，+140） | High temperature stability with good lubricity properties |
JINZHI | HANGU 2# | Mineral grease | （-20，+120） | Low noise |
HTHS | Mineral grease | （-40，+180） | High speed,low temperature,low torque and low noise |
The radial clearance of bearings with electric motor quality
Bore | CM | ||||
Over | Including | Min | Max | ||
mm | inch | mm | inch | um | um |
10 | 0.3937 | 18 | 0.7087 | 4 | 11 |
18 | 0.7087 | 24 | 0.9449 | 5 | 12 |
24 | 0.9449 | 30 | 1.1811 | 5 | 12 |
30 | 1.1811 | 40 | 1.5748 | 9 | 17 |
40 | 1.5748 | 50 | 1.9685 | 9 | 17 |
50 | 1.9685 | 65 | 2.5591 | 12 | 22 |
Datas of the mini-deep groove bearings under no load as followed: | Tolerance in um | ||||||||||
Bore | Inch R Series | C2 | NORMAL | C3 | C4 | ||||||
Over | Including | ||||||||||
mm | inch | mm | inch | min | max | min | max | min | max | min | |
2.5 | 0.0984 | 10 | 0.3937 | R2-R6 | 0 | 7 | 2 | 13 | 8 | 23 | 14 |
10 | 0.3937 | 18 | 0.7087 | R8-R10 | 0 | 9 | 3 | 18 | 11 | 25 | 18 |
18 | 0.7087 | 24 | 0.9449 | R12-R14 | 0 | 10 | 5 | 20 | 13 | 58 | 20 |
24 | 0.9449 | 30 | 1.1811 | R16-18 | 1 | 11 | 5 | 20 | 13 | 28 | 23 |
30 | 1.1811 | 40 | 1.5748 | R20-R24 | 1 | 11 | 6 | 20 | 15 | 33 | 28 |
40 | 1.5748 | 50 | 1.9685 | 1 | 11 | 6 | 23 | 18 | 36 | 30 | |
50 | 1.9685 | 65 | 2.5591 | 1 | 12 | 8 | 28 | 23 | 43 | 38 | |
Datas of the mini-deep groove bearings under no load as followed: | Tolerance in um | |||||||||
Clearance Code | MC1 | MC2 | MC3 | MC4 | MC5 | |||||
Clearance | min | max | min | max | min | max | min | max | min | max |
1 | 6 | 4 | 9 | 6 | 11 | 9 | 14 | 15 | 22 | |
Tolerance data for vibration of single bearing
D | V | V1 | V2 | V3 | V4 | ||||||||||
mm | Low | Medium | High | Low | Medium | High | Low | Medium | High | Low | Medium | High | Low | Medium | High |
3,4 | 80 | 44 | 44 | 60 | 35 | 32 | 48 | 26 | 22 | 31 | 16 | 15 | 28 | 10 | 10 |
5,6 | 110 | 72 | 60 | 74 | 48 | 40 | 58 | 36 | 30 | 35 | 21 | 18 | 32 | 11 | 11 |
7,8,9 | 130 | 96 | 80 | 92 | 66 | 54 | 72 | 48 | 40 | 44 | 28 | 24 | 38 | 12 | 12 |
10,12 | 160 | 120 | 100 | 120 | 80 | 70 | 90 | 60 | 50 | 55 | 35 | 30 | 45 | 14 | 15 |
15 | 210 | 150 | 120 | 150 | 100 | 85 | 110 | 78 | 60 | 65 | 46 | 35 | 52 | 18 | 18 |
17 | 210 | 150 | 120 | 150 | 100 | 85 | 110 | 78 | 60 | 65 | 46 | 35 | 52 | 25 | 25 |
20 | 260 | 190 | 150 | 180 | 125 | 100 | 130 | 100 | 75 | 80 | 60 | 45 | 60 | 25 | 25 |
22,25 | 260 | 190 | 150 | 180 | 125 | 100 | 130 | 100 | 75 | 80 | 60 | 45 | 60 | 30 | 32 |
28 | 260 | 190 | 150 | 180 | 125 | 100 | 130 | 100 | 75 | 80 | 60 | 45 | 60 | 35 | 40 |
30,32 | 300 | 240 | 190 | 200 | 150 | 130 | 150 | 120 | 100 | 90 | 75 | 60 | 70 | 35 | 40 |
35 | 300 | 240 | 190 | 200 | 150 | 130 | 150 | 120 | 100 | 90 | 75 | 60 | 70 | 42 | 45 |
40 | 360 | 300 | 260 | 240 | 180 | 160 | 180 | 150 | 130 | 110 | 90 | 80 | 82 | 50 | 50 |
45 | 360 | 300 | 260 | 240 | 180 | 160 | 180 | 150 | 130 | 110 | 90 | 80 | 82 | 60 | 60 |
50 | 420 | 320 | 320 | 280 | 200 | 200 | 210 | 160 | 160 | 125 | 100 | 100 | 95 | 70 | 70 |
Maximum vibration acceleration of single bearing
D | Diameter Series(0) | Diameter Series(2) | Diameter Series(3) | |||||||||||
mm | Z | Z1 | Z2 | Z3 | Z | Z1 | Z2 | Z3 | Z4 | Z | Z1 | Z2 | Z3 | Z4 |
3 | 35 | 34 | 32 | 28 | 36 | 35 | 32 | 30 | - | 37 | 36 | 33 | 31 | - |
4 | 35 | 34 | 32 | 28 | 36 | 35 | 32 | 30 | - | 37 | 36 | 33 | 31 | - |
5 | 37 | 36 | 34 | 30 | 38 | 37 | 34 | 32 | - | 39 | 37 | 35 | 33 | - |
6 | 37 | 36 | 34 | 30 | 38 | 37 | 34 | 32 | - | 39 | 37 | 35 | 33 | - |
7 | 39 | 38 | 35 | 31 | 40 | 38 | 36 | 34 | - | - | - | - | - | - |
8 | 39 | 38 | 35 | 31 | 40 | 38 | 36 | 34 | - | - | - | - | - | - |
9 | 41 | 40 | 36 | 32 | 42 | 40 | 37 | 35 | - | - | - | - | - | - |
10 | 43 | 42 | 38 | 33 | 44 | 42 | 39 | 35 | 30 | 37 | 44 | 40 | 37 | 32 |
12 | 44 | 43 | 39 | 34 | 45 | 43 | 39 | 35 | 30 | 47 | 45 | 40 | 37 | 32 |
15 | 45 | 44 | 40 | 35 | 46 | 44 | 41 | 36 | 31 | 48 | 46 | 42 | 38 | 33 |
17 | 46 | 44 | 40 | 35 | 47 | 45 | 41 | 36 | 31 | 49 | 47 | 42 | 38 | 33 |
20 | 47 | 45 | 41 | 36 | 48 | 46 | 42 | 38 | 33 | 50 | 48 | 43 | 39 | 34 |
22 | 47 | 45 | 41 | 36 | 48 | 46 | 42 | 38 | 33 | 50 | 48 | 43 | 39 | 34 |
25 | 48 | 46 | 42 | 38 | 49 | 47 | 43 | 40 | 36 | 51 | 49 | 44 | 41 | 37 |
28 | 49 | 47 | 43 | 39 | 50 | 48 | 44 | 41 | 37 | 52 | 50 | 45 | 42 | 38 |
30 | 49 | 47 | 43 | 39 | 50 | 48 | 44 | 41 | 37 | 52 | 50 | 45 | 42 | 38 |
32 | 50 | 48 | 44 | 40 | 51 | 49 | 45 | 42 | 38 | 53 | 51 | 46 | 43 | 39 |
35 | 51 | 49 | 45 | 41 | 52 | 50 | 46 | 43 | 39 | 54 | 52 | 47 | 44 | 40 |
40 | 53 | 51 | 46 | 42 | 54 | 52 | 47 | 44 | 40 | 56 | 54 | 49 | 45 | 41 |
45 | 55 | 53 | 48 | 45 | 56 | 54 | 49 | 46 | 43 | 58 | 56 | 51 | 47 | 44 |
50 | 57 | 54 | 50 | 47 | 58 | 55 | 51 | 48 | 45 | 60 | 57 | 53 | 49 | 46 |
55 | 59 | 56 | 52 | 49 | 60 | 57 | 53 | 50 | 47 | 62 | 59 | 54 | 51 | 48 |
60 | 61 | 58 | 54 | 51 | 62 | 59 | 54 | 51 | 48 | 61 | 56 | 53 | 50 | |