HM704A6

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The HM704A6 is a single-row angular contact ball bearing with a brass cage and a 15° contact angle. Manufactured by Danaher as part of their Timers and Controllers series, it features a bore diameter of 20 mm and an outer diameter of 42 mm. This bearing has a dynamic load rating of 12.8 kN.

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Product Description:

Danaher Corporation is a globally diversified manufacturer that designs, manufactures and markets industrial and commercial products and services. The company serves multiple industries including automation, environmental and manufacturing sectors. It is known for providing reliable, application specific technologies focused on performance, precision and system efficiency.

The HM704A6 Reset Timer is a clutch operated timing device designed for multiple circuit operations. This model features seven independent load circuits that is suitable for applications that require precise multi circuit control. The device operates within a specific time range that allows for external adjustment from zero to the full duration of the selected range. This range typically spans from 5 seconds up to 60 minutes. It is clutch operated and can be configured for either standard or reverse operation. In the reverse clutch configuration, the timer does not reset after a power failure. The timer supports both maintained and momentary start operations that is enabled via external wiring. All timing combinations are standardized to ensure dependable performance across applications. The compact form factor with a front accessible layout facilitates easy setup and maintenance. Each circuit includes visible dial settings for intuitive timing control. It is highly suitable for sequenced operations requiring synchronized control over multiple outputs.

This HM704A6 reset timer is equipped with up to 6 timing ranges and 4 standard adjustment modes. Its configuration allows individual control for each load circuit. The contact arrangement provides versatile switching control for varied loads. The time adjustments are external and manual that enables flexible setup based on operational needs. The unit is mechanically driven using a clutch. This ensures durable actuation without continuous electrical input. It supports field selectable timing configurations for practical use in industrial environments.

Ball Material
Steel
Bore Diameter
20 mm
Cage Material
Brass
Contact Angle
15°
Dynamic Load Rating
12.8 kN
Limiting Speed (grease)
16,000 rpm
Limiting Speed (oil)
20,000 rpm
Mounting
Universal Pair
Number Of Rows
Single
Outer Diameter
42 mm
Precision Rating
P4
Sealing
Open
Static Load Rating
7.2 kN
Type
Angular Contact Ball Bearing
Width
12 mm

Frequently Asked Questions about HM704A6:

Q: Can I manage multiple outputs with the HM704A6 Reset Timer by Danaher Corporation?

A: Yes, the HM704A6 is designed with seven independent load circuits for multi-output control. It works well in complex applications requiring synchronized and sequenced timing.

Q: How does the HM704A6 Reset Timer handle timing adjustments in changing industrial needs?

A: It allows external manual adjustments from zero up to 60 minutes. This flexibility ensures accurate operation across varying time-sensitive processes.

Q: Will the HM704A6 Reset Timer retain its timing cycle during a power failure?

A: In reverse clutch mode, it doesn’t reset when power is lost. This feature maintains control integrity in critical automated environments.

Q: Does the HM704A6 Reset Timer support flexible wiring and start options?

A: Yes, it supports both maintained and momentary start modes via external wiring. This makes integration easy with diverse circuit configurations.

Q: Can I adjust each load circuit separately in the HM704A6 model?

A: The HM704A6 offers individual control for each load using versatile contact arrangements. This enhances performance in systems needing precise multi-circuit timing control.


Internal Product Review

  • ‘‘The HM704A6 Reset Timer is a clutch-operated, multi-circuit timing device by Danaher Corporation. It features external manual time adjustment, reverse clutch operation, and supports both momentary and maintained starts. The model ensures reliable, synchronized timing control for complex machinery and sequenced operations.’’

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