6202 Bearing Size, Variants, and 6203 vs 6302 Guide
A standard 6202 bearing features a 15 mm bore, 35 mm outside diameter, and 11 mm width, available in 6202 2RS rubber-sealed and 6202 ZZ metal-shielded variants. Part of the ISO standard 6200 series deep groove ball bearings, this size handles both radial loads and moderate axial forces across electric motors, power tools, automotive alternators, and industrial machinery[1]. Matching the exact physical dimensions and selecting the proper seal configuration are essential steps before placing a procurement order.
Many maintenance engineers and workshop technicians assume that any bearing sharing a base part number or series code can be substituted freely. However, selecting a bearing requires precise dimensional matching and environment-specific sealing, as choosing the incorrect suffix or forced substitution leads to early component failure and unnecessary machine downtime.
This technical guide breaks down the precise dimensions of the 6202 bearing size, compares the operating differences between 6202 2RS and 6202 ZZ variants, and details why nearest-size alternatives like the 6203 or 6302 cannot be interchanged without physical machine modifications.
What are the exact dimensions of a 6202 bearing?
A standard 6202 bearing features a 15 mm bore, 35 mm outside diameter, and 11 mm width, available in 6202 2RS rubber-sealed and 6202 ZZ metal-shielded variants[1]. As a single-row deep groove ball bearing, its boundary dimensions are standardized across global manufacturing standards, ensuring that a 6202 designation refers to the exact 15 x 35 x 11 mm physical envelope regardless of the machine housing[1][2].
| Specification | Metric Value | Machine Fitting | HI-TEC Catalog Tiers |
|---|---|---|---|
| Bore Diameter (d) | 15 mm | 15 mm Shaft Journal | HI-TEC SILVER / SNT |
| Outside Diameter (D) | 35 mm | 35 mm Housing Bore | HI-TEC SILVER / SNT |
| Width (B) | 11 mm | 11 mm Axial Seat | HI-TEC SILVER / SNT |
| Basic Dynamic Load ($C$) | 8.06 kN[2] | Rotating Radial Capacity | Standard & Premium Grade |
| Basic Static Load ($C_0$) | 3.75 kN[2] | Stationary Load Capacity | Standard & Premium Grade |
In Pakistan's industrial market, selecting the right bearing involves choosing between proven manufacturing tiers tailored to operating demands. The 6202 part is available in HI-TEC SILVER premium and SNT brand options. HI-TEC SILVER represents a premium line constructed from high-grade bearing steel, supplied with an extended warranty for demanding automotive alternators, high-speed electric motors, and continuous production machinery. The standard HI-TEC line provides a cost-competitive alternative for general industrial replacement and bulk manufacturing applications. Specifying the exact part number alongside the required tier guarantees correct mechanical fitment and proper service life.
Parts in this article
| Part (bore x OD x width) | Variants | Price |
|---|---|---|
| 6202 15 x 35 x 11 mm 6200 Series | 6202 2RS (2x Rubber Seal) 6202 ZZ (2x Shield) · In stock | Ask today's price on WhatsApp |
| 6203 17 x 40 x 12 mm 6200 Series | 6203 ZZ (2x Shield) · In stock | Ask today's price on WhatsApp |
| 6302 15 x 42 x 13 mm 6300 Series | 6302 ZZ (2x Shield) · In stock | Ask today's price on WhatsApp |
| 6300 10 x 35 x 11 mm 6300 Series | 6300 ZZ (2x Shield) · In stock | Ask today's price on WhatsApp |
What is the difference between 6202 2RS and 6202 ZZ bearings?
The 6202 2RS variant uses dual rubber seals to block severe dust, while the 6202 ZZ features dual steel shields for lower friction in cleaner, higher-speed applications[3][4]. While both variants share identical 15 x 35 x 11 mm boundary dimensions[1], their protective enclosures determine how they interact with moisture, fine particulate contamination, operating speed, and friction.
| Selection Criteria | 6202 2RS (Dual Rubber Seals) | 6202 ZZ (Dual Metal Shields) |
|---|---|---|
| Enclosure Type | Contacting synthetic rubber seals | Non-contacting press-fit steel shields |
| Ingress Protection | High (blocks water splash, slurry, fine dust) | Moderate (blocks coarse debris & dry particles) |
| Friction & Torque | Higher running torque from seal lip contact | Low running friction; minimal drag |
| Speed Capability | Lower limiting speed (e.g., ~13,000 rpm)[4] | High limiting speed (e.g., ~28,000 rpm)[3] |
| Typical Applications | Agricultural pumps, outdoor drives, textile mills | Enclosed gearboxes, electric motors, power tools |
Selecting between these enclosures requires matching the component to its operational environment. The 6202 2RS rubber seal makes direct contact with the inner ring, establishing a barrier that retains factory grease and prevents fine abrasive particles or fluids from entering the raceway[4]. Conversely, the 6202 ZZ metal shields leave a narrow non-contact gap, permitting maximum rotational velocity without creating thermal expansion from seal drag[3].
Bearings in the same series are not interchangeable by size alone, as seal type and load capacity determine proper fit and performance. Installing a 6202 ZZ in a severe washdown environment causes grease washout and raceway pitting, whereas placing a 6202 2RS in an ultra-high-speed motor can result in lip overheating. Matching the protective suffix to the operating environment prevents premature bearing breakdown.
Can I replace a 6202 bearing with a 6203 or 6302 bearing?
A 6202 bearing cannot be directly replaced by a 6203 or 6302 bearing because their physical shaft and housing dimensions differ significantly. A 6203 bearing requires a larger 17 mm shaft, whereas a 6302 bearing keeps the same 15 mm bore as a 6202 but increases outer diameter to 42 mm. Substituting these components without machining the shaft or housing will result in mechanical misalignment or assembly failure.
| Part Number | Bore (d) | Outside Diameter (D) | Width (B) | ISO Metric Series | Direct Interchangeability |
|---|---|---|---|---|---|
| 6202 | 15 mm | 35 mm | 11 mm | 6200 Light Series | Baseline Reference |
| (https://hitecbearings.com/products/6203) | 17 mm | 40 mm | 12 mm | 6200 Light Series | No (Requires larger shaft & housing) |
| (https://hitecbearings.com/products/6302) | 15 mm | 42 mm | 13 mm | 6300 Medium Series | No (Requires larger housing & width) |
The numbering system explains these physical variations. In deep groove ball bearings, the last two digits indicate shaft size; code '02' designates a 15 mm bore, whereas code '03' designates a 17 mm bore[1]. The first digit indicates the series: '62' represents the light dimensional series, while '63' represents the medium series featuring larger rolling elements designed for higher load capacities. Consequently, a 6302 bearing fits a 15 mm shaft but expands the outside diameter by 7 mm and the width by 2 mm[1].
Attempting to substitute across series lines without shaft resizing or housing modification compromises machinery tolerances. Contact HI-TEC on WhatsApp (+92-348-5563390) for live price and stock verification before placing your part order. Their technical staff verifies exact dimensional cross-references to ensure you receive the precise part required for your application.
Need a price? Ask HI-TEC BEARINGS on WhatsApp Send the part number (6202, 6203, 6302, or any other) to ask for today's price and availability. Open WhatsApp |
Frequently Asked Questions
What are the exact dimensions of a 6202 bearing?
A standard 6202 deep groove ball bearing measures 15 mm for the inner bore diameter, 35 mm for the outside diameter, and 11 mm in width. These standardized metric dimensions ensure proper fitment on 15 mm shafts and 35 mm housing bores.
What is the difference between 6202 2RS and 6202 ZZ bearings?
The primary difference lies in the enclosure type and protection mechanism. The 6202 2RS features dual contacting rubber seals that completely block fine dust and liquids, while the 6202 ZZ features dual non-contacting steel shields designed for high-speed, low-friction operation in cleaner environments.
Can I replace a 6202 bearing with a 6203 or 6302 bearing?
No, you cannot directly swap them without altering your machinery dimensions. A 6203 bearing requires a larger 17 mm shaft and 40 mm housing bore, while a 6302 bearing fits a 15 mm shaft but requires a broader 42 mm outer housing bore and an 13 mm seat width.
References
- 6202 Bearing (15x35x11mm) | High-Speed Deep Groove Ball Bearing. https://hitecbearings.com/products/6202/ (2026-10-16)
- 6202 - Deep groove ball bearings | SKF. https://www.skf.com/in/products/rolling-bearings/ball-bearings/angular-contact-ball-bearings/single-row-angular-contact-ball-bearings/productid-6202 (2026-09-30)
- 6202-Z - Deep groove ball bearings | SKF. https://www.skf.com/group/products/rolling-bearings/ball-bearings/deep-groove-ball-bearings/productid-6202-Z (2026-10-07)
- 6202-2RSH - SKF. https://www.skf.com/products/rolling-bearings/ball-bearings/deep-groove-ball-bearings/productid-6202-2RSH (2026-10-15)