684ZZ Deep Groove Ball Bearing 4x9x4

Shipping Methods

To most of the countries in North Americas, Europes and Asia, we usually use DHL and UPS for shipping, sometimes EMS or FedEX.
To Russia, we use CDEK.ru. Russian customers also can choose their own forwarding / shipping companies.

Please leave comments with the order if either one of them is not suitable for shipping to your country and for customs declaration.

Shipping Cost

The shipping cost mostly depends on the shipment gross weight and shipping destination.

For shipment under 21kgs (kilograms), the shipping cost calculation bases on 0.5kgs. The formula is: X+(Y-0.5)/0.5*Z.
X=1st 0.5kgs cost
Y=shipment gross weight (Kilogram)
Z=shipping rate on each additional 0.5kgs
For example
To USA, the initial 0.5kgs cost is usually around US$20, and the additional cost is US$3.5 per 0.5kgs.
For 15kgs to USA, the shipping cost is: 20+(15-0.5)/0.5*3.5=US$121.5

For shipment above 21kgs, the shipping cost calculation bases on 1kgs. The formula is: Y*Z.
Y=shipment gross weight (Kilogram)
Z=shipping rate each Kilogram
For example
To UK, the shipping rate is 6.5USD/KGS.
For 22kgs to UK, the shipping cost is: 22*6.5=US$143

Generally, the larger the shipment gross weight the lower shipping cost for each item of products.

Delivery Time

The delivery time includes order processing time and shipping time.
Usually, the processing time is 1 - 5 business days depending on the order quantity and products; the shipping time is 3 - 5 business days.

NOTE: all of the costs (shipping, products) does NOT include the taxes occurred at destination country's customs.

We accept the below payment methods:

Paypal: this is authorized Paypal standard payment, you can pay from your credit card and then via paypal. It is for the order total less than certain amount, and only for some certain countries. 

Bank Transfer: for any order and any countries

Western Union: for any order and any countries

You will find the available payment methods for specific order on the checkout page. Please feel free to contact us if you want to pay by other methods.

NOTE: Orders paid by Bank Transfer and Western Union will NOT be processed until we receive the bank receipt copy; and will NOT shipped until the payment was received.

Please don't hesitate to contact us for assistance if you encounter any problem on the payment.

684ZZ is a deep groove ball bearing with 9mm outer diameter, 4mm bore diameter and 4mm width (thickness). Luxmake manufactures high quality 684ZZ miniature deep groove ball bearings with low price. Free samples are available before volume order. We welcome customization, please send us your design / requirement to get a quick and free quotation today. 

684ZZ Miniature Ball Bearing Specifications

Part Number: 684ZZ

Bearing Type: Ball

Structure: Single Row

Load Direction: Radial

Seal Type: Shields

Bore Diameter: 4mm

Outer Diameter: 9mm

Width(B): 4mm

Material: Chrome steel 52100(Gcr15)

Ring Material: Chrome steel 52100(Gcr15)

Cage Material: 300 Series Stainless Steel

Ball Material: Chrome steel 52100(Gcr15)

Shield Material: 300 Series Stainless Steel

Grade: ABEC-1 (ABEC-3, 5, 7, 9 available)

Clearance: C0 (C2, C3, C4, C5 available)

Ball Size: 1.588mm

Ball Quantity: 7pcs

Lubrication: grease (oil available)

Temperature Range: -30℃~130℃

Net Weight(g): 1 gram

Dynamic Load Rating (Cr): 545N

Static Load Rating (Cor): 182N