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The 6201 deep groove ball bearing is a compact bearing in the 6200 series, featuring a 12 mm bore, 32 mm outside diameter, and 10 mm width. According to CXJSD's specifications, the 6201 has a minimum chamfer dimension of 0.6 mm, a dynamic load rating of 6.1 kN, and a static load rating of 2.75 kN. It uses 7 balls with a 5.953 mm ball diameter and weighs approximately 0.037 kg per piece. The 6201 is designed for compact rotating equipment requiring reliable radial and axial load support with low friction and smooth operation.
The standard 6201 deep groove ball bearing measures 12 mm bore × 32 mm outside diameter × 10 mm width. Load ratings and limiting speeds can vary by manufacturer and bearing configuration, so always confirm the exact supplier catalogue before final selection.
| Parameter | Metric | Imperial |
|---|---|---|
| Bore diameter (d) | 12 mm | 0.4724 in |
| Outside diameter (D) | 32 mm | 1.2598 in |
| Width (B) | 10 mm | 0.3937 in |
| Minimum chamfer dimension (r) | 0.6 mm | 0.0236 in |
| Basic dynamic load rating (Cr) | 7.5 kN | 1,686 lbf |
| Basic static load rating (C0r) | 3.05 kN | 686 lbf |
| Number of balls | 7 | — |
| Ball diameter | 5.953 mm | 0.2344 in |
| Grease lubrication speed | 26,000 r/min | — |
| Oil-bath lubrication speed | 32,000 r/min | — |
| Approximate mass | 0.037 kg | 37 g |
The 6201 is a single-row deep groove ball bearing. Its inner and outer raceways form deep circular grooves around the balls, allowing the bearing to support radial loads as well as axial loads in both directions while maintaining smooth rolling motion.
The inner ring has a precision-machined raceway and a 12 mm bore that fits onto the rotating shaft while guiding the rolling elements.
The outer ring contains the deep raceway and provides the stationary supporting surface for the bearing assembly.
The 6201 bearing contains 7 steel balls with a nominal diameter of 5.953 mm, which roll between the inner and outer raceways to reduce friction and support loads.
The pressed steel cage maintains the spacing and orderly movement of the 7 balls, helping prevent ball-to-ball contact during rotation.
The inner and outer rings feature deep circular-arc raceway grooves that guide the balls and allow the bearing to accommodate radial loads and axial loads in both directions.
Raceway exposed on both sides. Suitable for clean environments and applications where relubrication or external lubrication is required.
Metal shields help protect the bearing against dust and coarse contaminants while retaining factory grease with relatively low additional friction.
Contact rubber seals provide stronger protection against moisture and fine contaminants, making them suitable for more demanding operating environments.
With a compact 12 mm bore, 32 mm outside diameter and 10 mm width, the 6201 is widely suited to compact rotating equipment where low friction, reliable shaft support and moderate radial and axial load capacity are required.
Small industrial motors, servo motors and other rotating electrical equipment requiring compact shaft support.
Washing machines, vacuum cleaners, fans and other motor-driven household equipment.
Pumps, fans and blowers requiring stable shaft rotation during continuous operation.
Selected alternator, cooling fan and HVAC-related rotating mechanisms.
Conveyor rollers and general machinery requiring reliable compact shaft support.
Example feedback from buyers and distributors who have sourced the 6201 deep groove ball bearing.
The 6201 bearings fit our equipment just as expected. They run smoothly and feel solid during operation. We have had a good experience with them so far.
We needed a compact bearing for a small motor assembly, and the 6201 worked well for us. Installation was easy and the rotation is nice and smooth.
Quite happy with the 6201 bearings. The size was exactly what we needed and the bearings have been running quietly in our equipment. We will order them again.
Short clips covering 6201 bearing configurations, sealed versions and comparisons with other commonly used deep groove ball bearings.
Answers to common questions from engineers and buyers evaluating the 6201, including dimensions, load capacity, overheating, installation and high-speed operation.
A standard 6201 deep groove ball bearing measures 12 mm bore × 32 mm outside diameter × 10 mm width. These dimensions are important when replacing an existing bearing, but you should also confirm the seal type, internal clearance, load rating and manufacturer before ordering.
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6201 overheating can result from insufficient or excessive lubricant, excessive load, incorrect internal clearance, an overly tight fit, misalignment or excessive operating speed. Check the bearing configuration and actual operating conditions first rather than assuming that the bearing itself is defective.
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The installation force should be applied to the bearing ring that has the interference fit, rather than transmitting installation force through the balls and raceways. Correct shaft and housing dimensions, clean mounting surfaces and proper alignment are also important because incorrect installation can create raceway damage, vibration and premature failure.
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The load capacity depends on the manufacturer and exact bearing configuration, so the manufacturer's catalogue should be used for the final selection. For example, a standard NSK 6201 is listed with a 7,500 N basic dynamic load rating and a 3,050 N basic static load rating, while other manufacturers may publish different ratings.
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Yes, a 6201 can be used in relatively high-speed rotating equipment, but the allowable speed depends on the manufacturer, lubrication, seal or shield configuration, temperature and application conditions. For example, standard open 6201 bearings may have limiting speeds around 26,000 r/min with grease lubrication and 32,000 r/min with oil-bath lubrication, depending on the manufacturer and design.
