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Miniature Deep Groove Ball Bearing
ball bearing 688zz
Product Detail

688 bearing has the difference between closed type and open type.

The open type has no cover on both sides of the bearing, which is directly indicated by 688;

the closed type has a cover on both sides, and the cover has a dust cover (indicated by 688ZZ) and a rubber seal cover. (Expressed by 688-2RS) Two kinds.

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Model

688 RS

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Type

Deep groove ball bearing

Material

Chrome steel Gcr15

Bore size

8mm

Outer diameter

16mm

Width

5mm

Ball number

9

Speed

36000r/min

Dynamic load bearing

1.064kN

Static load bearing

0.477kN

Number of row

Single row

Warranty

12months


Feature

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688ZZ bearing with dust cover

● dust-proof

High temperature resistance

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688-2RS Rubber Sealed Cover Bearing

Dust proof and waterproof

Under the same conditions, the noise is lower than that with a dust cover.


Application

Miniature Deep Groove Ball Bearing bearings are mainly used in motors, electronic accessories, trolleys, skateboards, roller skates and other small machinery.


Model Table

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Product Detail

Bearing selection material

The inner part of the bearing is composed of outer ring, cage, dust cover/seal ring and steel ball. The JRZC bearing ring and steel ball are made of refined bearing steel Gcr15,

and the cage is made of brass or high-quality cold-rolled steel. It can be made of reinforced engineering plastics, and the dust cover is made of imported special materials.


Bearing products produced:

including 60 series, 62 series, 63 series, 68 series, 69 series, 1600 series, 67 series


Heat treatment:

professional and advanced heat treatment equipment and international synchronous heat treatment process to ensure bearing hardness and wear resistance


Bearing accuracy refers to dimensional accuracy and rotational accuracy. Such as P0.P6.P5.P4.P2



688zz bearing has the difference between closed type and open type.

The open type has no cover on both sides of the bearing, which is directly indicated by 688;

the closed type has a cover on both sides, and the cover has a dust cover (indicated by 688ZZ) and a rubber seal cover. (Expressed by 688-2RS) Two kinds.

Miniature Deep Groove Ball Bearing Structure

Model

688 RS

Deep groove ball bearing sizes

Type

Deep groove ball bearing

Material

Chrome steel Gcr15

Bore size

8mm

Outer diameter

16mm

Width

5mm

Ball number

9

Speed

36000r/min

Dynamic load bearing

1.064kN

Static load bearing

0.477kN

Number of row

Single row

Warranty

12months


Feature

Miniature Deep Groove Ball Bearing feature

688ZZ bearing with dust cover

● dust-proof

● High temperature resistance

688-2RS Rubber Sealed Cover Bearing

688-2RS Rubber Sealed Cover Bearing

● Dust proof and waterproof

● Under the same conditions, the noise is lower than that with a dust cover.


Application

Miniature Deep Groove Ball Bearing bearings are mainly used in motors, electronic accessories, trolleys, skateboards, roller skates and other small machinery.

Application


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