SKF 6205-2RSH/C3 25x52x15 Deep Groove Ball Bearing

SKF 6205-2RSH/C3 - Product Characteristics

The exact manufacturer designation is SKF 6205-2RSH/C3. The commonly used commercial descriptions 6205 2RS C3 SKF and SKF 6205 2RS C3 refer to this sealed C3 configuration, but the complete SKF reference should be retained for precise technical identification.

Verified technical data:

Manufacturer / Brand: SKF
Designation: 6205-2RSH/C3
Commercial Designation: 6205 2RS C3
Bearing Type: Single-row deep groove ball bearing
Dimensions: 25x52x15 mm
Number of Rows: 1
Bore Type: Cylindrical
Sealing: Both sides
Radial Internal Clearance: C3
Cage: Sheet metal
Bearing Material: Bearing steel
Lubrication: Grease
Basic Dynamic Load Rating C: 14.8 kN
Basic Static Load Rating C0: 7.8 kN
Fatigue Load Limit Pu: 0.335 kN
Reference Speed: 28,000 r/min
Limiting Speed: 8,500 r/min
SKF Performance Class: SKF Explorer
Net Mass: approximately 0.129 kg.

Dimensions

The principal dimensions of SKF 6205-2RSH/C3 are:

d - Bore Diameter: 25 mm
D - Outside Diameter: 52 mm
B - Width: 15 mm
Commercial Size: 25x52x15 mm

For this deep groove ball bearing, the dimensional notation 25x52x15 mm corresponds to d x D x B.

The 05 bore code corresponds to a 25 mm bore diameter.

Bearing Construction

SKF 6205-2RSH/C3 is a single-row deep groove ball bearing. Its balls operate between deep raceway grooves in the inner and outer rings.

This geometry allows the bearing to accommodate primarily radial loads, while also supporting axial loads in both directions. The basic bearing construction is non-separable.

For this exact configuration, technical data confirm one row of rolling elements, a cylindrical bore, sheet-metal cage, bearing-steel construction and grease lubrication.

2RSH Sealing

The 2RSH part of the designation identifies the sealing arrangement on this bearing. The exact SKF product is specified with seals on both sides.

The seals help retain grease inside the bearing and restrict contaminants from entering the rolling contact area.

This is an important difference compared with shielded 6205-2Z variants. The same 25x52x15 mm principal dimensions do not make 2RSH and 2Z configurations technically identical.

C3 Radial Internal Clearance

The C3 suffix is an essential part of the product specification.

For SKF 6205-2RSH/C3, the radial internal clearance is C3, meaning clearance greater than the Normal clearance group.

Therefore:

6205-2RSH/C3 ≠ 6205-2RSH

The standard 6205-2RSH configuration is listed with CN clearance, while this specific version has C3 clearance.

C3 should not be interpreted simply as a "high-speed bearing" specification. Increased internal clearance can be required where interference fits, temperature differences between the rings or other operating factors reduce the effective clearance after mounting.

The correct clearance group must be selected for the actual bearing arrangement.

Load Ratings and Operating Principle

For SKF 6205-2RSH/C3, the verified load ratings are:

C - Basic Dynamic Load Rating: 14.8 kN
C0 - Basic Static Load Rating: 7.8 kN
Pu - Fatigue Load Limit: 0.335 kN.

The deep groove raceway geometry enables the bearing to carry radial loads together with axial loads acting in either direction.

C, C0 and Pu are engineering values used in bearing calculations. They should not be interpreted as simple maximum permissible loads for any machine.

Actual bearing selection requires consideration of load magnitude and direction, required rating life, speed, fits, operating clearance, lubrication and temperature.

Reference Speed and Limiting Speed

Technical data for SKF 6205-2RSH/C3 specify:

Reference Speed: 28,000 r/min
Limiting Speed: 8,500 r/min.

These values represent different engineering concepts and should not be used interchangeably.

The actual permissible operating speed in a specific installation depends on the bearing arrangement, load, lubrication, temperature, fits and surrounding components.

Meaning of 6205-2RSH/C3

The complete designation identifies the exact bearing configuration:

6 - deep groove ball bearing

62 - dimensional series

05 - bore code corresponding to 25 mm

2RSH - seals on both sides

C3 - radial internal clearance greater than Normal

For a technical product page, SKF 6205-2RSH/C3 is therefore preferable to the simplified commercial designation SKF 6205 2RS C3.

The commercial form can remain naturally in the description because it is widely used when identifying this bearing, but it should not replace the precise manufacturer reference.

SKF 6205-2RSH/C3 vs 6205-2RSH

Both bearings have the same principal dimensions:

d = 25 mm
D = 52 mm
B = 15 mm

The important difference is radial internal clearance:

6205-2RSH: Normal / CN clearance
6205-2RSH/C3: C3 clearance greater than Normal.

Consequently, the C3 suffix must not be omitted when an application specifically requires increased internal clearance.

SKF 6205-2RSH/C3 vs 6205-2Z/C3

The two configurations can have the same 25x52x15 mm dimensions and C3 clearance, but their closure systems differ.

6205-2RSH/C3: sealed on both sides
6205-2Z/C3: shielded on both sides

The closure type influences characteristics such as contaminant exclusion, lubricant retention, friction and permissible speed. Therefore, the two versions should not automatically be substituted for one another.

Selection and Interchangeability

When selecting a replacement for SKF 6205-2RSH/C3, compare:

• complete manufacturer designation,
• single-row deep groove construction,
• d = 25 mm,
• D = 52 mm,
• B = 15 mm,
• sealing arrangement,
• C3 radial internal clearance,
• dynamic load rating C,
• static load rating C0,
• speed requirements,
• shaft and housing fits,
• lubrication,
• operating temperature and environment.

A bearing from another manufacturer described only as 6205 2RS C3 25x52x15 should not automatically be considered a fully verified technical equivalent. Dimensions, sealing design, clearance and operating parameters must also be compared.

Technical Specification

Manufacturer / Brand: SKF
Designation: 6205-2RSH/C3
Commercial Designation: 6205 2RS C3
Product Type: Deep groove ball bearing
Construction: Single row
Dimensional Series: 62
Dimensions: 25x52x15 mm
d - Bore Diameter: 25 mm
D - Outside Diameter: 52 mm
B - Width: 15 mm
Bore Type: Cylindrical
Sealing: Both sides
Radial Internal Clearance: C3 - greater than Normal
Cage: Sheet metal
Bearing Material: Bearing steel
Lubrication: Grease
Basic Dynamic Load Rating C: 14.8 kN
Basic Static Load Rating C0: 7.8 kN
Fatigue Load Limit Pu: 0.335 kN
Reference Speed: 28,000 r/min
Limiting Speed: 8,500 r/min
Performance Class: SKF Explorer
Net Mass: 0.129 kg.

FAQ

What are the dimensions of SKF 6205-2RSH/C3?

SKF 6205-2RSH/C3 measures 25x52x15 mm: d = 25 mm bore diameter, D = 52 mm outside diameter and B = 15 mm width.

What type of bearing is SKF 6205-2RSH/C3?

It is a single-row deep groove ball bearing with seals on both sides and C3 radial internal clearance.

What does 2RSH mean?

For this SKF reference, 2RSH identifies the configuration with seals on both sides of the bearing.

What does C3 mean?

C3 means radial internal clearance greater than Normal. It is a functional bearing specification and should not be omitted when identifying this product.

What are the load ratings of SKF 6205-2RSH/C3?

SKF product data specify C = 14.8 kN, C0 = 7.8 kN and Pu = 0.335 kN.

What is the limiting speed of SKF 6205-2RSH/C3?

The specified limiting speed is 8,500 r/min, while the reference speed is 28,000 r/min.

Can SKF 6205-2RSH/C3 carry axial loads?

Yes. Its deep groove raceway geometry enables it to accommodate axial loads acting in both directions, in addition to radial loads.

Is 6205-2RSH the same as 6205-2RSH/C3?

No. The principal dimensions and sealing arrangement can be the same, but 6205-2RSH/C3 has C3 radial internal clearance greater than Normal.

AI Overview

SKF 6205-2RSH/C3 is a single-row deep groove ball bearing measuring 25x52x15 mm, with seals on both sides and C3 radial internal clearance greater than Normal. SKF data specify C = 14.8 kN, C0 = 7.8 kN, Pu = 0.335 kN, a sheet-metal cage and limiting speed of 8,500 r/min.