Name: SF684 2rs bearing - Stainless Steel Bearings | Bearing Maker
Price: 1.62 USD
Availability: InStock

SF684 2rs

Part Number	SF684 2rs
System of Measurement	Metric
Bearing Type	Ball
For Load Direction	Radial
Construction	Single Row
Inner Ring Type	Standard
Seal Type	Sealed
Bore Dia	4 mm
Bore Dia Tolerance	-0.008mm to 0
Outer Dia	9 mm
Outer Dia Tolerance	-0.008mm to 0
Width	4 mm
Width Tolerance	-0.12mm to 0
Flange Outer Dia	10.3 mm
Flange Thickness	1 mm
Ring Material	440C Stainless Steel
Ball Material	440C Stainless Steel
Cage Material	300 Series Stainless Steel
Shield Material	Nitrile Rubber
Dynamic Radial Load	110 lbf
Static Radial Load	37 lbf
Max Speed (X1000 rpm)	47.7
Lubrication	Required
Shaft Mount Type	Press Fit
Temperature Range	-30° to 110 °C
ABEC Rating	ABEC1
Radial Clearance Trade No	MC3
Radial Clearance	0.002mm to 0.013mm
RoHS	Compliant
REACH	Compliant
Ball Dia	1.5880 mm
Ball Qty	7
Weight	1.15 g

$1.62

Why Choose Bearing Maker

Fast Global Shipping
OEM/ODM Services
Technical support & design
Quality Control
Worldwide customer base

Design Features of SF684 2rs

The design feature of a SF684 2rs is its compact, corrosion-resistant structure, designed for use in small, space-constrained applications. SF684 2rs ball diameter is 1.5880 mmmeter. Its outer dia is 9 mm. Its flanged design provides added support and positioning, making it ideal for precise and lightweight machinery.

What Benefits Can SF684 2rs Provide?

Compact Size: Ideal for applications with limited space, providing efficient performance in small, precision devices.
Corrosion Resistance: Made from stainless steel, it offers excellent resistance to rust and corrosion, ensuring reliability in harsh environments.
Support and Stability: The flanged design provides additional support and helps maintain proper alignment and positioning.
Low Friction: Reduces friction for smooth operation, enhancing the efficiency and lifespan of the bearing.
Durability: Offers long-lasting performance with high wear resistance, making it suitable for precision machinery and equipment.
Versatility: Suitable for a wide range of applications, including medical devices, robotics, and precision instruments.

What Can SF684 2rs Be Used for?

Medical Devices: Used in small medical instruments and equipment where compactness and corrosion resistance are critical.
Robotics: Applied in miniature motors, actuators, and other precision components in robotic systems.
Aerospace: Suitable for small-scale aerospace parts that require high precision and reliability in compact forms.
Consumer Electronics: Used in devices like cameras, headphones, and other small electronic equipment for smooth, efficient movement.
Optical Instruments: Common in applications such as microscopes and cameras, where precision and smooth operation are essential.
Toys and Hobbyist Equipment: Ideal for miniature mechanical systems in model trains, RC cars, and other hobbyist products.

We ship bearings worldwide using established international express carriers, air freight providers, and sea freight partners. The most appropriate shipping method is selected based on shipment weight and dimensions, destination, delivery requirements, product type, and overall shipping cost.

Shipping Methods We Offer

We offer multiple shipping options to ensure your bearings reach you safely and on time.

Shipping Method	Typical Shipment Size	Estimated Transit Time	Delivery
International Express (FedEx or equivalent)	Typically under 10 kg	Approximately 3–7 business days after dispatch	Door-to-door delivery in most destinations
Air Freight	Typically 10–50 kg	Approximately 4–10 business days after dispatch	Airport-to-airport or door-to-door arrangements may be available
Sea Freight	Typically over 50 kg or large-volume shipments	Approximately 15–40 business days after dispatch	Port-to-port or other arrangements depending on destination

The shipment sizes shown above are general guidelines only. The actual shipping method may vary depending on package dimensions, product value, destination, carrier availability, and customer requirements.

Delivery times are estimates and are not guaranteed. Transit times may be affected by customs clearance, weather, carrier delays, public holidays, destination accessibility, and other circumstances outside our control.

Freight Charges

We aim to provide practical and cost-effective shipping options for international bearing orders.

Free standard shipping is available for eligible orders with a merchandise value of USD $200 or more, subject to destination and product eligibility.
Orders below USD $200 are subject to shipping charges calculated according to destination, shipment weight and dimensions, and shipping method.
Individual oversized or heavy products weighing more than 30 kg (66 lbs) may not qualify for free shipping, regardless of total order value. Freight charges for these products will be quoted separately.
Shipping charges generally do not include import duties, customs clearance charges, VAT, sales taxes, or other destination-country fees.

Any applicable import duties, taxes, customs fees, brokerage fees, or other local charges are the responsibility of the customer unless otherwise agreed in writing.

Order Processing & Shipping Time

In-stock orders are typically processed within 1–2 business days after payment confirmation.

Processing time does not include transportation time and may not include production or procurement lead time.

For products that are out of stock, made to order, customized, or require additional production, the applicable lead time will be provided in the quotation or confirmed by our sales team before shipment.

Orders placed on weekends or public holidays will generally begin processing on the next business day.

If an unexpected delay occurs, we will provide an updated estimated shipping schedule.

Shipment Tracking

Once your order has been dispatched, we will provide shipment details and tracking information where tracking is available.

International express shipments can generally be tracked directly through the carrier. Tracking availability for air and sea freight may depend on the freight service used.

Customs & Import Clearance

Customers are responsible for ensuring that the products can be legally imported into the destination country and for providing any information or documentation required for customs clearance.

Unless otherwise agreed in writing, the customer is responsible for import duties, taxes, customs clearance charges, brokerage fees, and other destination-related costs.

Delays caused by customs authorities are outside our direct control.

Shipping Information & Delivery

Customers are responsible for providing a complete and accurate shipping address, contact name, telephone number, and other information required for delivery.

Additional shipping, storage, return, or redelivery charges resulting from incorrect shipping information, refused delivery, failure to complete customs clearance, or unsuccessful delivery attempts may be charged to the customer.

Large, Custom & Special Orders

Large-volume, oversized, customized, and made-to-order bearing shipments may require special freight arrangements.

Depending on the order, we may recommend express shipping, air freight, sea freight, freight forwarding, or another logistics solution.

Special shipping arrangements, costs, and estimated delivery schedules will be confirmed before shipment.

Special Shipping Requirements

If you require expedited delivery, use of a particular carrier, shipment on your own freight account, special packaging, consolidation, or other shipping arrangements, please inform our sales team before confirming your order.