Double Row Spherical Roller Bearing |
23900 - 24000 - 24100 Series | ||||||||||||
Bearing No. | dxDxB (mm) | Weight(kg) | Bearing No. | dxDxB (mm) | Weight(kg) | |||||||
23936 | 23936 K | 180 | 250 | 52 | 8.21 | |||||||
23938 | 23938 K | 190 | 260 | 52 | 8.60 | |||||||
23940 | 23940 K | 200 | 280 | 60 | 12.10 | |||||||
23944 | 23944 K | 220 | 300 | 60 | 13.10 | |||||||
23948 | 23948 K | 240 | 320 | 60 | 14.00 | |||||||
23952 | 23952 K | 260 | 360 | 75 | 24.00 | |||||||
23956 | 23956 K | 280 | 380 | 75 | 26.40 | |||||||
23960 | 23960 K | 300 | 420 | 90 | 40.00 | |||||||
24122 | 24122 K | 110 | 180 | 69 | 7.070 | |||||||
24024 | 24024 K | 120 | 180 | 60 | 5.480 | 24124 | 24124 K | 120 | 200 | 80 | 10.30 | |
24026 | 24026 K | 130 | 200 | 69 | 8.08 | 24126 | 24126 K | 130 | 210 | 80 | 11.00 | |
24028 | 24028 K | 140 | 210 | 69 | 8.57 | 24128 | 24128 K | 140 | 225 | 85 | 13.30 | |
24030 | 24030 K | 150 | 225 | 75 | 10.70 | 24130 | 24130 K | 150 | 250 | 100 | 20.20 | |
24032 | 24032 K | 160 | 240 | 80 | 13.00 | 24132 | 24132 K | 160 | 270 | 109 | 26.00 | |
24034 | 24034 K | 170 | 260 | 90 | 17.70 | 24134 | 24134 K | 170 | 280 | 109 | 27.20 | |
24036 | 24036 K | 180 | 280 | 100 | 23.300 | 24136 | 24136 K | 180 | 300 | 118 | 34.30 | |
24038 | 24038 K | 190 | 290 | 100 | 24.300 | 24138 | 24138 K | 190 | 320 | 128 | 42.80 | |
24040 | 24040 K | 200 | 310 | 109 | 31.00 | 24140 | 24140 K | 200 | 340 | 140 | 53.40 | |
24044 | 24044 K | 220 | 340 | 118 | 40.20 | 24144 | 24144 K | 220 | 370 | 150 | 67.00 | |
24048 | 24048 K | 240 | 360 | 118 | 43.00 | 24148 | 24148 K | 240 | 400 | 160 | 82.2 | |
24052 | 24052 K | 260 | 400 | 140 | 65.20 | 24152 | 24152 K | 260 | 440 | 180 | 114.0 | |
24056 | 24056 K | 280 | 420 | 140 | 69.00 | 24156 | 24156 K | 280 | 460 | 180 | 120.0 | |
24060 | 24060 K | 300 | 460 | 160 | 98.00 | 24160 | 24160 K | 300 | 500 | 200 | 161.0 | |
Product Offering |
The Granville stablized high precision EMQ bearings
in 10 serie for below OE industries |
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Bore Size | 1mm and up to 50mm | |||
Closures |
Open
Non-contact metallic shields Non-contact seals Contact seals |
1 EM bearings for automobiles
2 EM bearings for air con ditioners 3 EM bearings for industrial s ewing machine 4 EM bearings for textile machines 5 Bearings for electric tools 6 EM bearings for general machinery 7 EM bearings for washers 8 EM bearings for vacuum cleaners 9 Bearings for bank note counters 10 EM bearings for cleanout machines |
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Ring Material |
100Cr6
52100 Gcr15 chrome steel 440C stainless steel 420C stainless steel |
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Seal Material | Nitrile, Polyacrylic, Viton | |||
Retainer | Riveted steel, Crimped steel, Crowned steel, Crowned nylon | |||
Precision Class |
ABEC-1
ABEC-3 ABEC-5 ABEC-7 |
01 Heat Treatment
02 Centerless Grinding Machine 11200 (most advanced) 03 Automatic P roduction Lines for Raceway 04 Automatic P roduction Lines for Raceway 05 Ultras onic Cleaning of Rings 06 Automatic Ass embly 07 Ultras onic Cleaning of Bearings 08 Automatic G reas ing, Seals Pres sing 09 Measurement of Bearing Vibration (Acceleration) 10 Measurement of Bearing Vibration (Speed) 11 Laser Marking 12Automatic Packing |
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Raidial Clearance |
C2
C0 C3 C4 C5 |
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Heat Stabilization |
S0
S1 S2 S3 |
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Quality Warranty | 9001:2008 |
Advantage Manufacturing Processes
and Quality Control |
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TS16949 |
Bearing Material | ||||
Bearing Material | Chinese Standard | Equivalent | ||
Material | AISI/SAE/ASTM | DIN | JIS | |
chrome steel | Gcr15 | SA52100 | 100Cr6 | SUJ2 |
stainless steel | 9cr18 | AISI400C | X102CrMo17 | SUS440C |
cold rolled low carbon | ST14 | ASTM366 | 1623 | 3141 |
Guide for Selection of Bearing Precision | ||||
Application | ISO | |||
Computer printers, copy machine-feed rollers, micro motors, stepping motors, fan motors, VCR pinch rollers | Normal Class 6 | |||
High precision motors, hard disk drive motors, dental spindles, servo motors, encoders, VCR drum
spindles, VCR capstan motors, polygonal mirror scanner motors |
Class 5
Class 4 |
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High frequency spindles, gyro motors, gyro gimbals | Class 4 |
Bearing Radial Clearance | |||||||
The clearance is the distance between outer ring, inner ring and rolling element. It is an important factor that has significant influence on noise, vibration, heat and fatigue life of a bearing. As such, it is critical to select the proper clearance considering the bearing fit, load, speed and operating temperature. When measuring the internal radial dlerance, the bearing is subject to a standard load in order to ensure full contact between all bearing comonents. Under such a loa d, the measured clearance is larger than the actual; this is due to elastic defoma tion. The difference is compensated by the factors given in the table below. |
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Normal Bore | d (mm) | Group | C2 | Normal | CN | Group | C3 |
over | to | min | max | min | max | min | max |
2.5 | 6 | 0 | 7 | 2 | 13 | 8 | 23 |
6 | 10 | 0 | 7 | 2 | 13 | 8 | 23 |
10 | 18 | 0 | 9 | 3 | 18 | 11 | 25 |
18 | 24 | 0 | 10 | 5 | 20 | 13 | 28 |
24 | 30 | 1 | 11 | 5 | 20 | 13 | 28 |
30 | 40 | 1 | 11 | 6 | 20 | 15 | 33 |
40 | 50 | 1 | 11 | 6 | 23 | 18 | 36 |
50 | 65 | 1 | 15 | 8 | 28 | 23 | 43 |
65 | 80 | 1 | 15 | 10 | 30 | 25 | 51 |
80 | 100 | 1 | 18 | 12 | 36 | 30 | 58 |
100 | 120 | 2 | 20 | 15 | 41 | 36 | 66 |
120 | 140 | 2 | 23 | 18 | 48 | 41 | 81 |
140 | 160 | 2 | 23 | 8 | 53 | 46 | 91 |
160 | 180 | 2 | 25 | 20 | 61 | 53 | 102 |
We strictly follow the core of quality management process control:
✓ APQP: product quality advance planningManufacturing | Comprehensive | Premium Quality |
Advance automatic lines
Granville takes her every effort in purchasing the most advanced bearing process equipment, CNC automatic facilities are widely used in the factory and we are keep investing to improve more. |
Full range bearing & units
We provide a strong full range products, including: Radial ball bearings Pillow block and wide range of housed units Electric motor and components One-stop partnerships products |
Quality control from beginning
All products are manufactured exclusively by companies with ISO 9001:2008 certified Quality System which use state-of-the-art machines.The quality path starts from beginning to deliver and goods' quality trackable. |