High Precision 688 Deep Groove Ball Bearing Manufacturer

• Weight: 31g
• Cage: Steel
• Material: Bearing Steel
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: 688
• Application: Skateboard/Motor
• Application1: Advertising Company, Building Material Shops, Con
• Transport Package: Standard Export Box
• Specification: 8*16*4mm
• Trademark: GQZ
• Origin: China
• HS Code: 8482102000
• Production Capacity: 1000000
• Package Size: 5.00cm * 5.00cm * 5.00cm
• Package Gross Weight: 1.100kg

Product Description

Specification

 

1.  High precision 688 deep groove ball bearing manufacturer . 

 

	Model	688
	Size	ID(d)	8	mm
		OD(D)	16	mm
		Height(B)	4	mm
	Material	Bearing steel
	Cage	PE
	Grade	ABEC3 (P6)
	Seals	Open/ZZ/2RS
	Weight	0.01		KG

2. We also can offer following bearings  , please check  . 
 

Bearing No.	Dimensions(mm)			Weight	Bearing No.	Dimensions(mm)
	d	D	B	(kg)		d	D	B
6000ZZ	10	26	8	0.019	6205ZZ	25	52	15
6001ZZ	12	28	8	0.022	6206ZZ	30	62	16
6002ZZ	15	32	9	0.03	6207ZZ	35	72	17
6003ZZ	17	35	10	0.036	6208ZZ	40	80	18
6004ZZ	20	42	12	0.067	6209ZZ	45	85	19
6005ZZ	25	47	12	0.074	6210ZZ	50	90	20
6006ZZ	30	55	13	0.112	6300ZZ	10	35	11
6007ZZ	35	62	14	0.146	6301ZZ	12	37	12
6008ZZ	40	68	15	0.182	6302ZZ	15	42	13
6009ZZ	45	75	16	0.229	6303ZZ	17	47	14
6010ZZ	50	80	16	0.249	6304ZZ	20	52	15

 

Detailed Photos

Packaging & Shipping

 

After Sales Service

 

FAQ

 

Why our bearing is better than other?
Material
We usually use bearing steel (GCr15), but many manufacturers only use softer carbon steel materials, so our bearings have higher hardness and longer service life.

Heat treatment
We have our own heat treatment plant and do not need to be outsourced. We use a slower speed and more stable temperature to effectively control the steel and increase the toughness and life of the steel.
Other small-scale bearing companies usually need to outsource. Many outsourcing factories only strengthen the hardness of the bearing surface due to cost factors, but the hardness inside is not enough, which is the reason why many bad bearings are easy to crack.

Precision
Our bearings can be controlled at a height accuracy of 0~-0.004mm, fast speed and smoothness.

Multiple grinding process
We grind the bearing many times, but others may grind it only once, so the chamfer of our bearing is very smooth.

In conclusion
We use high-quality materials and multiple grinding processes, so our bearings have the characteristics of high speed, low noise,high precision and long life.

Quality guarantee
we give our customers 1 year quality warrantee for the bearings.