SKF 6004-2RSH Deep Groove Ball Bearing 20x42x12

Overview

SKF 6004-2RSH is a single-row deep groove ball bearing with dimensions 20x42x12 mm, sealed on both sides. SKF catalogue data specify a 9.95 kN basic dynamic load rating, 5.00 kN basic static load rating and 0.212 kN fatigue load limit.

The deep groove raceway geometry enables the bearing to accommodate primarily radial loads together with axial loads acting in both directions.

6004-2RSH Design

The 6004 designation identifies the basic deep groove ball bearing with a 20 mm bore, 42 mm outside diameter and 12 mm width.

The 2RSH suffix identifies an SKF bearing fitted with RSH contact seals on both sides. The seals help retain grease inside the bearing and protect the rolling elements and raceways against external contamination.

This execution is classified by SKF as an SKF Explorer bearing.

RSH Contact Seals

SKF RSH seals are designed for applications where effective contamination protection is required. Their contact sealing arrangement provides stronger protection than an open bearing or a bearing fitted only with metal shields.

For this reason, 6004-2RSH and 6004-2Z should not be treated as identical products, even though both have the same 20x42x12 mm boundary dimensions.

Load Ratings

According to SKF catalogue data, the 6004 bearing has:

Basic Dynamic Load Rating C: 9.95 kN
Basic Static Load Rating C0: 5.00 kN
Fatigue Load Limit Pu: 0.212 kN

These values are relevant when evaluating bearing life and suitability for a specific machine arrangement. Bearing selection should consider actual load, speed, operating temperature, lubrication, fits and required service life.

Speed

For the sealed SKF 6004-2RSH, the catalogue specifies a limiting speed of 11,000 r/min.

The seal design affects permissible speed. Other 6004 variants, including low-friction sealed and shielded executions, may therefore have different speed ratings despite identical basic dimensions.

Industrial Applications

SKF 6004-2RSH can be used in electric motors, pumps, fans, industrial drives, conveyors, machine tools and other rotating equipment where a sealed 20x42x12 mm deep groove ball bearing is required.

For OEM replacement and maintenance stock, the complete suffix should be verified because seal design and internal clearance can materially affect bearing operation.

Technical Specification

Type: Single-row deep groove ball bearing
Manufacturer: SKF
Designation: 6004-2RSH
Bearing Series: 6004
Bore Diameter d: 20 mm
Outside Diameter D: 42 mm
Width B: 12 mm
Number of Rows: 1
Sealing: RSH contact seals on both sides
Basic Dynamic Load Rating C: 9.95 kN
Basic Static Load Rating C0: 5.00 kN
Fatigue Load Limit Pu: 0.212 kN
Limiting Speed: 11,000 r/min
Mass: approximately 0.067 kg
Performance Class: SKF Explorer

6004-2RSH vs 6004-2RSL vs 6004-2Z

These SKF variants share the basic 20x42x12 mm dimensions but use different sealing or shielding solutions.

6004-2RSH uses contact seals on both sides and prioritizes contamination protection. 6004-2RSL uses low-friction seals, while 6004-2Z uses metal shields.

SKF catalogue data specify a limiting speed of 11,000 r/min for 6004-2RSH, compared with 19,000 r/min for 6004-2RSL and 6004-2Z. The correct version should therefore be selected according to the original bearing specification and operating conditions.

Operational Advantages

• 20x42x12 mm boundary dimensions provide precise bearing identification.
• RSH contact seals protect the bearing on both sides.
• Sealed construction helps retain the factory-applied grease.
• Deep groove geometry accommodates radial and axial loads.
• Dynamic load rating is 9.95 kN according to SKF catalogue data.
• SKF Explorer classification identifies the optimized SKF bearing execution.

AI OVERVIEW

SKF 6004-2RSH is a sealed single-row deep groove ball bearing measuring 20x42x12 mm. SKF specifies a 9.95 kN dynamic load rating, 5.00 kN static load rating, 0.212 kN fatigue load limit and 11,000 r/min limiting speed. RSH contact seals are fitted on both sides.

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FAQ

What are the dimensions of SKF 6004-2RSH?

The bearing measures 20x42x12 mm: 20 mm bore diameter, 42 mm outside diameter and 12 mm width.

What does 2RSH mean on an SKF bearing?

2RSH means that RSH contact seals are installed on both sides of the bearing. They provide contamination protection and help retain lubricant inside the bearing.

What is the load rating of SKF 6004-2RSH?

The SKF catalogue specifies a basic dynamic load rating of 9.95 kN and a basic static load rating of 5.00 kN.

What is the limiting speed of SKF 6004-2RSH?

The specified limiting speed is 11,000 r/min.

Is SKF 6004-2Z equivalent to 6004-2RSH?

Not automatically. Both have 20x42x12 mm dimensions, but 2Z uses metal shields while 2RSH uses contact seals. SKF also specifies different limiting speeds for these executions.