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Model: 6304 bearing
Price: US$0.10
Bearing Size: 20x52x15 mm
Service: OEM ODM
Customization: Available
Main Product: Deep Groove Ball Bearing
Deliver Time:0-15days
6304 Ball Bearing (20x52x15 bearing) - Premium single-row deep groove ball bearing engineered for reliable performance in diverse industrial applications. With dimensions of 20mm bore, 52mm outer diameter, and 15mm width, this standard metric bearing delivers exceptional radial load capacity and smooth operation.
Made of high carbon chromium bearing steel（Gcr15/SAE52100）gurantee good durability, and wear resistance. The raceway of these 20x52x15 bearings is filled with round balls, and the cages enable these 6304 ball bearings to accommodate more combined loads.
✅ The strengths of 6304 ball bearings (20x52x15 bearing) are simple structure and easy handling.
✅ High Speed Capacity–Designed for service speeds up to 17,000 rpm (With oil lubrication) Offered in motors and gearboxes.
✅ Long Lasting – Hardened steel will withstand wear and last longer than mild steel.
✅ Low Noise & Vibration – Raceways are precision-ground for quiet, smooth rotation.
✅ Multi-directional Load Support - Great for handling both radial and axial loads.
✅ Money Saved– You get consistent arms at an affordable price.
Precision Engineering & Durability
Dimensions: 20x52x15 bearing, adhering to ISO standards for seamless compatibility.
Material Options: High-performance chrome steel (GCr15/SAE52100) or corrosion-resistant stainless steel (420/304).
Sealing Variants: Open type, ZZ (double metal shields), or 2RS (rubber seals) for dust/water protection.
High Load Capacity & Speed
Dynamic Load Rating: 15.8–16.8 kN | Static Load Rating: 7.88–10.9 kN.
Speed Limits: With grease limiting speeds up to 12,000 rpm, this 6304 ball bearing is suitable for electric motors, pumps, and other high-speed machinery applications requiring reliable performance.
Precision Grades: ABEC-1 (P0) to ABEC-5 (P5), with vibration levels Z1/Z2/Z3 for ultra-low noise (<20 dB).
Basic Info.
Model NO. | 6304 ball bearing | Material | Bearing Steel |
Contact Angle | 0 | Load Direction | Radial Bearing |
Vibration | V1 V2 V3 V4 | Noise Level | Z1 Z2 Z3 Z4 |
Lubrication | Oil or Grease | Transport Package | Standard Exporting Packing |
Precision | P0 P5 P6 | Trademark | HECTO or OEM or neutral marking or no marking |
| Specification | Deep groove ball bearing | HS Code | 84821020 |
Origin | China | Production Capacity | 10 Million/Year |
Packaging & Delivery
Package Size | 28.00cm * 26.00cm * 17.00cm |
Package Gross Weight | 1.000kg |
Product Description
Basic Features of Deep Groove Ball Bearing | |
Types | 6000 series |
Material | Bearing Steel(GCr15, 100Cr6) |
Dimension | Metric and Inch |
Structure | Open, Z, 2Z, RS, 2RS, N, NR |
Precision | P0 P5 P6 |
Noise Level | Z1 Z2 Z3 Z4 |
Vibration | V1 V2 V3 V4 |
Radial Clearance | C0 C2 C3 C4 C5 |
Lubrication | Oil or Grease |
MOQ | 1 PC |
Delivery Time | 20-45 days |
Sea Ports | Shanghai Ningbo Qingdao |
Bore Diameter (d): 20 mm
Outer Diameter (D): 52 mm
Width (B): 15 mm
Weight: 0.138–0.143 kg
Radial Clearance: C0 (standard) / C3 (high-temperature)
Lubrication: Pre-lubricated with lithium grease
Why Choose HECTO?
Cost Efficiency
Competitive Pricing: 30–50% lower than EU/US suppliers, with bulk discounts for 500+ units (MOQ: 300 units).
Custom Solutions: Free 6304 ball bearing samples, OEM/ODM services (e.g., snap ring variants like 6304NR).
Quality Assurance
Certifications: ISO 9001, SGS, and CE compliance.
Advanced Testing: Lifetime >50,000 hours, vibration/noise reports included.
Fast Turnaround & Logistics
In-Stock Availability: 6304 ball bearing delivery within 7–15 days via DHL/FedEx.
Global Shipping: Sea freight (15–30 days) with moisture-proof packaging.
Sustainability
6304 ball bearing with Eco-friendly production processes aligning with global environmental standards.
The 6304 ball bearing is one of the most versatile industrial bearings, widely used in:
Electric Motors & Generators: Small motors, generators, and alternators
Industrial Pumps: Centrifugal pumps, gear pumps, hydraulic systems
Gearboxes & Transmissions: Small gear reducers, automotive transmissions
Material Handling: Conveyor rollers, small pulleys, idlers
Agricultural Equipment: Small machinery components, implements
HVAC Systems: Blowers, fans, small compressors
Machine Tools: Spindles, shafts, rotating components
Automotive: Alternators, water pumps, auxiliary components
Office Equipment: Printers, copiers, scanners
Deep Groove Ball Bearing
Bearing No. | Boundary Dimensions(mm) | Basic Load Rating(N) | Weight(KG) | |||
d | D | B | Cr | Cor | ||
604 | 4 | 12 | 4 | 960 | 350 | 0.0023 |
605 | 5 | 14 | 5 | 1070 | 420 | 0.0037 |
606 | 6 | 17 | 6 | 1960 | 730 | 0.0069 |
607 | 7 | 19 | 6 | 2800 | 1060 | 0.0082 |
608 | 8 | 22 | 7 | 3290 | 1360 | 0.0129 |
609 | 9 | 24 | 7 | 3330 | 1410 | 0.016 |
6000 | 10 | 26 | 8 | 4160 | 1780 | 0.019 |
6001 | 12 | 28 | 8 | 5110 | 2380 | 0.022 |
6002 | 15 | 32 | 9 | 5590 | 2840 | 0.03 |
6003 | 17 | 35 | 10 | 6000 | 3250 | 0.039 |
6004 | 20 | 42 | 12 | 9390 | 5020 | 0.069 |
6005 | 25 | 47 | 12 | 10060 | 5860 | 0.08 |
6006 | 30 | 55 | 13 | 11900 | 7460 | 0.12 |
6007 | 35 | 62 | 14 | 16210 | 10420 | 0.16 |
6008 | 40 | 68 | 15 | 17030 | 11700 | 0.19 |
6009 | 45 | 75 | 16 | 21080 | 14780 | 0.25 |
6010 | 50 | 80 | 16 | 22000 | 16260 | 0.26 |
6011 | 55 | 90 | 18 | 31500 | 18400 | 0.39 |
6012 | 60 | 95 | 18 | 30000 | 23000 | 0.42 |
6013 | 65 | 100 | 18 | 32000 | 25000 | 0.44 |
6014 | 70 | 110 | 20 | 38000 | 31000 | 0.6 |
6015 | 75 | 115 | 20 | 38000 | 31000 | 0.64 |
6016 | 80 | 125 | 22 | 47500 | 40000 | 0.85 |
6017 | 85 | 130 | 22 | 47500 | 40000 | 0.89 |
6018 | 90 | 140 | 24 | 63800 | 59000 | 1.15 |
6019 | 95 | 145 | 24 | 66700 | 62300 | 1.2 |
6020 | 100 | 150 | 24 | 72500 | 70000 | 1.25 |
624 | 4 | 13 | 5 | 1150 | 400 | 0.0032 |
625 | 5 | 16 | 5 | 1880 | 680 | 0.0051 |
626 | 6 | 19 | 6 | 2800 | 1060 | 0.0086 |
627 | 7 | 22 | 7 | 3290 | 1360 | 0.0131 |
628 | 8 | 24 | 8 | 3330 | 1410 | 0.017 |
629 | 9 | 26 | 8 | 4160 | 1780 | 0.0191 |
6200 | 10 | 30 | 9 | 5110 | 2380 | 0.032 |
6201 | 12 | 32 | 10 | 6180 | 3060 | 0.037 |
6202 | 15 | 35 | 11 | 7450 | 3700 | 0.045 |
6203 | 17 | 40 | 12 | 9560 | 4780 | 0.065 |
6204 | 20 | 47 | 14 | 12840 | 6650 | 0.11 |
6205 | 25 | 52 | 15 | 14020 | 7930 | 0.13 |
6206 | 30 | 62 | 16 | 19460 | 11310 | 0.2 |
6207 | 35 | 72 | 17 | 25670 | 15300 | 0.29 |
6208 | 40 | 80 | 18 | 29520 | 181400 | 0.37 |
6209 | 45 | 85 | 19 | 32500 | 20400 | 0.41 |
6210 | 50 | 90 | 20 | 35000 | 32300 | 0.46 |
6211 | 55 | 100 | 21 | 43500 | 29200 | 0.61 |
6212 | 60 | 110 | 22 | 52500 | 36000 | 0.78 |
6213 | 65 | 120 | 23 | 57200 | 40100 | 0.99 |
6214 | 70 | 125 | 24 | 62000 | 44000 | 1.05 |
6215 | 75 | 130 | 25 | 66000 | 49500 | 1.2 |
6216 | 80 | 140 | 26 | 72500 | 53000 | 1.4 |
6217 | 85 | 150 | 28 | 83500 | 64000 | 1.8 |
6218 | 90 | 160 | 30 | 96000 | 71500 | 2.15 |
6219 | 95 | 170 | 32 | 109000 | 82000 | 2.6 |
6220 | 100 | 180 | 34 | 122000 | 93000 | 3.15 |
634 | 4 | 16 | 5 | 1880 | 680 | 0.0054 |
635 | 5 | 19 | 6 | 2810 | 1060 | 0.0089 |
636 | 6 | 22 | 7 | 3290 | 1360 | 0.0145 |
637 | 7 | 26 | 9 | 3340 | 1410 | 0.0258 |
638 | 8 | 28 | 9 | 4160 | 1780 | 0.0303 |
639 | 9 | 30 | 10 | 5120 | 2390 | 0.0371 |
6300 | 10 | 35 | 11 | 7640 | 3470 | 0.053 |
6301 | 12 | 37 | 12 | 9700 | 4190 | 0.06 |
6302 | 15 | 42 | 13 | 11400 | 5430 | 0.082 |
6303 | 17 | 47 | 14 | 13580 | 6580 | 0.12 |
6304 | 20 | 52 | 15 | 15940 | 7880 | 0.14 |
6305 | 25 | 62 | 17 | 22380 | 11490 | 0.23 |
6306 | 30 | 72 | 19 | 27000 | 15200 | 0.35 |
6307 | 35 | 80 | 21 | 33500 | 19100 | 0.46 |
6308 | 40 | 90 | 23 | 40500 | 24000 | 0.63 |
6309 | 45 | 100 | 25 | 53000 | 32000 | 0.83 |
6310 | 50 | 110 | 27 | 62000 | 38500 | 1.05 |
6311 | 55 | 120 | 29 | 71600 | 45000 | 1.35 |
6312 | 60 | 130 | 31 | 81900 | 52200 | 1.7 |
6313 | 65 | 140 | 33 | 92700 | 59900 | 2.1 |
6314 | 70 | 150 | 35 | 104000 | 68000 | 2.5 |
6315 | 75 | 160 | 37 | 113000 | 77000 | 3 |
6316 | 80 | 170 | 39 | 123000 | 86500 | 3.6 |
6317 | 85 | 180 | 41 | 133000 | 97000 | 4.25 |
6318 | 90 | 190 | 43 | 143000 | 107000 | 4.9 |
6319 | 95 | 200 | 45 | 153000 | 119000 | 5.65 |
6320 | 100 | 215 | 47 | 173000 | 141000 | 7 |
6403 | 17 | 62 | 17 | 22700 | 10800 | 0.27 |
6404 | 20 | 72 | 19 | 31000 | 15200 | 0.4 |
6405 | 25 | 80 | 21 | 36100 | 19400 | 0.53 |
6406 | 30 | 90 | 23 | 47330 | 24500 | 0.712 |
6407 | 35 | 100 | 25 | 55740 | 29350 | 0.922 |
6408 | 40 | 110 | 27 | 63710 | 36580 | 1.218 |
6409 | 45 | 120 | 29 | 77380 | 45380 | 1.495 |
6410 | 50 | 130 | 31 | 92290 | 55130 | 1.86 |
6411 | 55 | 140 | 33 | 100670 | 62450 | 2.4 |
6412 | 60 | 150 | 35 | 109110 | 70060 | 2.82 |
6413 | 65 | 160 | 37 | 118140 | 78570 | 3.35 |
6414 | 70 | 180 | 42 | 139500 | 99560 | 4.64 |
6415 | 75 | 190 | 45 | 153750 | 114320 | 5.69 |
6416 | 80 | 200 | 48 | 163220 | 124550 | 6.74 |
6417 | 85 | 210 | 52 | 174900 | 137490 | 7.91 |
6418 | 90 | 225 | 54 | 192480 | 157630 | 9.55 |
6420 | 100 | 250 | 58 | 223080 | 194610 | 12.813 |
684 | 4 | 9 | 2.5 | 480 | 170 | 0.001 |
685 | 5 | 11 | 3 | 770 | 320 | 0.0019 |
686 | 6 | 13 | 3.5 | 1080 | 440 | 0.0027 |
687 | 7 | 14 | 3.5 | 1170 | 510 | 0.003 |
688 | 8 | 16 | 4 | 1250 | 590 | 0.0038 |
689 | 9 | 17 | 4 | 1330 | 660 | 0.044 |
6800 | 10 | 19 | 5 | 1590 | 750 | 0.005 |
6801 | 12 | 21 | 5 | 1910 | 1040 | 0.006 |
6802 | 15 | 24 | 5 | 2070 | 1250 | 0.007 |
6803 | 17 | 26 | 5 | 2130 | 1360 | 0.008 |
6804 | 20 | 32 | 7 | 3480 | 2230 | 0.009 |
6805 | 25 | 37 | 7 | 3680 | 2630 | 0.022 |
6806 | 30 | 42 | 7 | 4000 | 3150 | 0.026 |
6807 | 35 | 47 | 7 | 4270 | 3600 | 0.029 |
6808 | 40 | 52 | 7 | 4410 | 3890 | 0.033 |
6809 | 45 | 58 | 7 | 4590 | 4330 | 0.04 |
6810 | 50 | 65 | 7 | 6610 | 6080 | 0.052 |
6811 | 55 | 72 | 9 | 8530 | 8080 | 0.083 |
6812 | 60 | 78 | 10 | 9200 | 8760 | 0.106 |
6813 | 65 | 85 | 10 | 10510 | 9420 | 0.125 |
6814 | 70 | 90 | 10 | 10890 | 10090 | 0.135 |
6815 | 75 | 95 | 10 | 11230 | 10760 | 0.145 |
6816 | 80 | 100 | 10 | 11320 | 11080 | 0.155 |
6817 | 85 | 110 | 13 | 17599 | 18300 | 0.265 |
6818 | 90 | 115 | 13 | 17853 | 18961 | 0.28 |
6819 | 95 | 120 | 13 | 18089 | 19616 | 0.311 |
6820 | 100 | 125 | 13 | 18340 | 20266 | 0.325 |
694 | 4 | 11 | 4 | 960 | 350 | 0.0017 |
695 | 5 | 13 | 4 | 1070 | 420 | 0.0023 |
696 | 6 | 15 | 5 | 1470 | 600 | 0.0036 |
697 | 7 | 17 | 5 | 1600 | 710 | 0.005 |
698 | 8 | 19 | 6 | 2230 | 910 | 0.0076 |
699 | 9 | 20 | 6 | 2480 | 1090 | 0.0085 |
6900 | 10 | 22 | 6 | 2690 | 1270 | 0.009 |
6901 | 12 | 24 | 6 | 2890 | 1460 | 0.011 |
6902 | 15 | 28 | 7 | 4320 | 2250 | 0.016 |
6903 | 17 | 30 | 7 | 4590 | 2550 | 0.018 |
6904 | 20 | 37 | 9 | 6370 | 3680 | 0.036 |
6905 | 25 | 42 | 9 | 6660 | 4180 | 0.042 |
6906 | 30 | 47 | 9 | 7240 | 5010 | 0.048 |
6907 | 35 | 55 | 10 | 10390 | 7160 | 0.074 |
6908 | 40 | 62 | 12 | 13020 | 9200 | 0.11 |
6909 | 45 | 68 | 12 | 13490 | 10130 | 0.128 |
6910 | 50 | 72 | 12 | 13900 | 10990 | 0.132 |
6911 | 55 | 80 | 13 | 14820 | 12690 | 0.177 |
6912 | 60 | 85 | 13 | 15080 | 13480 | 0.191 |
6913 | 65 | 90 | 13 | 19950 | 17490 | 0.2 |
6914 | 70 | 100 | 16 | 25950 | 21850 | 0.327 |
6915 | 75 | 105 | 16 | 26780 | 23560 | 0.345 |
6916 | 80 | 110 | 16 | 27590 | 25280 | 0.363 |
6917 | 85 | 120 | 18 | 31900 | 29700 | 0.517 |
6918 | 90 | 125 | 18 | 32800 | 31500 | 0.54 |
6919 | 95 | 130 | 18 | 33700 | 33300 | 0.567 |
6920 | 100 | 140 | 20 | 39901 | 39135 | 0.771 |
16001 | 12 | 28 | 7 | 5100 | 2400 | 0.019 |
16002 | 15 | 32 | 8 | 5600 | 2800 | 0.025 |
16003 | 17 | 35 | 8 | 6800 | 3350 | 0.032 |
16004 | 20 | 42 | 8 | 7900 | 4500 | 0.051 |
16005 | 25 | 47 | 8 | 8350 | 5100 | 0.059 |
16006 | 30 | 55 | 9 | 11200 | 7400 | 0.091 |
16007 | 35 | 62 | 9 | 11700 | 8200 | 0.107 |
16008 | 40 | 68 | 9 | 12600 | 9650 | 0.125 |
16009 | 45 | 75 | 10 | 12900 | 10500 | 0.171 |
16010 | 50 | 80 | 10 | 13200 | 11300 | 0.18 |
16011 | 55 | 90 | 11 | 18600 | 15300 | 0.258 |
16012 | 60 | 95 | 11 | 20000 | 17500 | 0.283 |
16013 | 65 | 100 | 11 | 20500 | 18700 | 0.307 |
16014 | 70 | 110 | 13 | 24400 | 22600 | 0.441 |
16015 | 75 | 115 | 13 | 25000 | 24000 | 0.464 |
16016 | 80 | 125 | 14 | 25400 | 25100 | 0.597 |
16017 | 85 | 130 | 14 | 25900 | 26200 | 0.626 |
16018 | 90 | 140 | 16 | 33500 | 33500 | 0.848 |
16019 | 95 | 145 | 16 | 34500 | 35000 | 0.885 |
16020 | 100 | 150 | 16 | 35000 | 36500 | 0.91 |
62200 | 10 | 30 | 14 | 5100 | 2390 | 0.04 |
62201 | 12 | 32 | 14 | 6100 | 2750 | 0.045 |
62202 | 15 | 35 | 14 | 77500 | 3600 | 0.054 |
62203 | 17 | 40 | 16 | 9600 | 4600 | 0.083 |
62204 | 20 | 47 | 18 | 12800 | 6650 | 0.13 |
62205 | 25 | 52 | 18 | 14000 | 7850 | 0.15 |
62206 | 30 | 62 | 20 | 19500 | 11300 | 0.24 |
62207 | 35 | 72 | 23 | 25700 | 15300 | 0.37 |
62208 | 40 | 80 | 23 | 29100 | 17800 | 0.44 |
62209 | 45 | 85 | 23 | 32500 | 20400 | 0.48 |
62210 | 50 | 90 | 23 | 35000 | 23200 | 0.52 |
62211 | 55 | 100 | 25 | 43500 | 29200 | 0.7 |
62212 | 60 | 110 | 28 | 52500 | 36000 | 0.97 |
62213 | 65 | 120 | 31 | 57500 | 40000 | 1.25 |
62214 | 70 | 125 | 31 | 62000 | 44000 | 1.3 |
62215 | 75 | 130 | 31 | 66000 | 49500 | 1.39 |
62216 | 80 | 140 | 33 | 72500 | 53000 | - |
62217 | 85 | 150 | 36 | 83500 | 64000 | - |
62218 | 90 | 160 | 40 | 96000 | 71500 | - |
62219 | 95 | 170 | 43 | 109000 | 82000 | - |
62220 | 100 | 180 | 46 | 122000 | 93000 | - |
62300 | 10 | 35 | 17 | 8200 | 3500 | 0.073 |
62301 | 12 | 37 | 17 | 9700 | 4200 | 0.0814 |
62302 | 15 | 42 | 17 | 11400 | 5450 | 0.105 |
62303 | 17 | 47 | 19 | 13500 | 6550 | 0.146 |
62304 | 20 | 52 | 21 | 15900 | 7900 | 0.195 |
62305 | 25 | 62 | 24 | 21200 | 10900 | 0.306 |
62306 | 30 | 72 | 27 | 26700 | 15000 | 0.478 |
62307 | 35 | 80 | 31 | 33500 | 19100 | 0.647 |
62308 | 40 | 90 | 33 | 40500 | 24000 | 0.885 |
62309 | 45 | 100 | 36 | 53000 | 32000 | 1.156 |
62310 | 50 | 110 | 40 | 62000 | 38500 | 1.498 |
62311 | 55 | 120 | 43 | 71500 | 45000 | 1.918 |
62312 | 60 | 130 | 46 | 82000 | 52000 | 2.422 |
62313 | 65 | 140 | 48 | 92500 | 60000 | - |
62314 | 70 | 150 | 51 | 104000 | 68000 | - |
62315 | 75 | 160 | 55 | 113000 | 77000 | - |
62316 | 80 | 170 | 58 | 123000 | 86500 | - |
62317 | 85 | 180 | 60 | 133000 | 97000 | - |
62318 | 90 | 190 | 64 | 143000 | 107000 | - |
62319 | 95 | 200 | 67 | 153000 | 119000 | - |
