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NO.1 SKF 608 Skateboard Bearing Original Packing  Description:
Â
Company
Linqing City GaoYuan Bearing Co.,Ltd
Product NameÂ
SKF Miniature Wheel Bearing Deep Groove Ball Bearing (608 ZÂ RS)
Brand
SKF
Model Number
608Â
Bore Size
8mm
Outside Diameter
22mm
Width/ Thickness
7mm
Ring Material
Gcr15/ Carbon Steel/ Stainless Steel/ Si3N4/ ZrO2
Cage MaterialÂ
Steel/ Brass/ Nylon/ Custom
Precision
P0, P6, P5, or as requested
Vibration
ZV1, ZV2, ZV3, or as requested
ClearanceÂ
C0,C2,C3, or as requestedÂ
Quality standard
ISO9001:2000/ SGS
Quality Control ProcessÂ
1.Assembly
2.Windage test 3.Cleaning 4.Rotary test 5.Greasing and gland 6.Noise inspection 7.Appearance inspection 8.Rust prevention 9.Product packaging
ApplicationÂ
Home appliances; automotive, electric, instruments, building machines,Â
railway vehicle, agricultural machines and etc.Â
Packing
Industrial packing: plastic bag+ carton plywood pallet
plastic bag+ white box+carton+plywood pallet commercial packing: plastic bag+color box+carton +plywood palletÂ
Service
OEM or customer logo acceptable
Delivery TimeÂ
Within 7days for stock product
7-30 days according to quantity and designÂ
 Payment Term
30% T/T In Advance, 70% T/T before shipment     Â
Â
100% L/C at sightÂ
No.2 Skateboard SKF Deep Groove Ball Bearing 608 Pictures Show:
What is 608 bearing?
The most common standardized ball bearing size is the 608 series. Gaoyuan 608 series is the original standard ball bearing. In the 608 series, the ball bearing typically consists of optional closures, inner race, outer race, balls, and ball retainer. It is characterized by an 8mm inner diameter (the bore of the ball bearings), a 22mm outer diameter, and a width of 7mm. Most of these ball bearings are manufactured to reflect an ABEC rating which is the industry standard to measure the dimensional and manufacturing tolerances of ball bearings.
The ABEC rating is graded in five tiers of 1, 3, 5, 7, and 9 ratings, where the higher the rating, the tighter the tolerances of the bearing. Ball bearings that have a high ABEC system rating are used for high precision applications such as the aerospace industry or surgical equipment, and lower ABEC graded ball bearings are used for more everyday bearing applications. ABEC ratings also reflect the relative prices of ball bearings; the higher the grading, the more expensive the ball bearings. 608 bearings are used in a wide variety of applications including skates and skateboards, electric motors, home appliances, and much more. The speed of the ball bearing has no relation to the ABEC rating. Speed of the ball bearing has a direct relation to lubrication, materials and quality.
Materials used in the 608 bearing
Gaoyuan Ball bearings are made of a variety of material types, including ceramic and metal. Ceramic ball bearings are generally recognized as superior because they can dissipate the heat and friction generated inside a ball bearing more easily than a normal metal ball bearing can. For purposes of normal usage however, a 608 ball bearing typically consists of chrome steel balls, both for durability and economic reasons, as a ceramic ball bearing can be quite expensive. Keeping your bearing clean and lubricated will make it work better and last much longer.How a 608 Bearing Functions?
In a Gaoyuan 608 bearing, the bearing balls rotate between two rings - an inner ring and outer ring - and are kept apart by a metallic crown type "H" or a two piece metallic ribbon type "R" cage which are interchangeable in most common applications. The entire unit is sealed with a rubber or metal shield. This shield is helpful in reducing the entry of particulate contaminants into the bearing and also reduces the amount of lubricant leakage. Bearings are usually appended with letters like S, Z, SS, or ZZ to indicate that they are sealed, shielded, or double shielded bearings. In fact, just by looking at the part number of a 608 ball bearing, you can tell what type it is. 608 ball bearings from NMB Tech are pre-lubricated either with oil or grease to make them less susceptible to corrosion or bearing failure, and to allow them to withstand high temperatures.
Original Packing SKF NSK NTN Ceramic Deep Groove Ball bearing(608 608ZZ 608-2RS)
NO.1 SKF 608 Skateboard Bearing Original Packing  Description:
Â
Company
Linqing City GaoYuan Bearing Co.,Ltd
Product NameÂ
SKF Miniature Wheel Bearing Deep Groove Ball Bearing (608 ZÂ RS)
Brand
SKF
Model Number
608Â
Bore Size
8mm
Outside Diameter
22mm
Width/ Thickness
7mm
Ring Material
Gcr15/ Carbon Steel/ Stainless Steel/ Si3N4/ ZrO2
Cage MaterialÂ
Steel/ Brass/ Nylon/ Custom
Precision
P0, P6, P5, or as requested
Vibration
ZV1, ZV2, ZV3, or as requested
ClearanceÂ
C0,C2,C3, or as requestedÂ
Quality standard
ISO9001:2000/ SGS
Quality Control ProcessÂ
1.Assembly
2.Windage test 3.Cleaning 4.Rotary test 5.Greasing and gland 6.Noise inspection 7.Appearance inspection 8.Rust prevention 9.Product packaging
ApplicationÂ
Home appliances; automotive, electric, instruments, building machines,Â
railway vehicle, agricultural machines and etc.Â
Packing
Industrial packing: plastic bag+ carton plywood pallet
plastic bag+ white box+carton+plywood pallet commercial packing: plastic bag+color box+carton +plywood palletÂ
Service
OEM or customer logo acceptable
Delivery TimeÂ
Within 7days for stock product
7-30 days according to quantity and designÂ
 Payment Term
30% T/T In Advance, 70% T/T before shipment     Â
Â
100% L/C at sightÂ
No.2 Skateboard SKF Deep Groove Ball Bearing 608 Pictures Show:
What is 608 bearing?
The most common standardized ball bearing size is the 608 series. Gaoyuan 608 series is the original standard ball bearing. In the 608 series, the ball bearing typically consists of optional closures, inner race, outer race, balls, and ball retainer. It is characterized by an 8mm inner diameter (the bore of the ball bearings), a 22mm outer diameter, and a width of 7mm. Most of these ball bearings are manufactured to reflect an ABEC rating which is the industry standard to measure the dimensional and manufacturing tolerances of ball bearings.
The ABEC rating is graded in five tiers of 1, 3, 5, 7, and 9 ratings, where the higher the rating, the tighter the tolerances of the bearing. Ball bearings that have a high ABEC system rating are used for high precision applications such as the aerospace industry or surgical equipment, and lower ABEC graded ball bearings are used for more everyday bearing applications. ABEC ratings also reflect the relative prices of ball bearings; the higher the grading, the more expensive the ball bearings. 608 bearings are used in a wide variety of applications including skates and skateboards, electric motors, home appliances, and much more. The speed of the ball bearing has no relation to the ABEC rating. Speed of the ball bearing has a direct relation to lubrication, materials and quality.
Materials used in the 608 bearing
Gaoyuan Ball bearings are made of a variety of material types, including ceramic and metal. Ceramic ball bearings are generally recognized as superior because they can dissipate the heat and friction generated inside a ball bearing more easily than a normal metal ball bearing can. For purposes of normal usage however, a 608 ball bearing typically consists of chrome steel balls, both for durability and economic reasons, as a ceramic ball bearing can be quite expensive. Keeping your bearing clean and lubricated will make it work better and last much longer.How a 608 Bearing Functions?
In a Gaoyuan 608 bearing, the bearing balls rotate between two rings - an inner ring and outer ring - and are kept apart by a metallic crown type "H" or a two piece metallic ribbon type "R" cage which are interchangeable in most common applications. The entire unit is sealed with a rubber or metal shield. This shield is helpful in reducing the entry of particulate contaminants into the bearing and also reduces the amount of lubricant leakage. Bearings are usually appended with letters like S, Z, SS, or ZZ to indicate that they are sealed, shielded, or double shielded bearings. In fact, just by looking at the part number of a 608 ball bearing, you can tell what type it is. 608 ball bearings from NMB Tech are pre-lubricated either with oil or grease to make them less susceptible to corrosion or bearing failure, and to allow them to withstand high temperatures.
Original Packing SKF NSK NTN Ceramic Deep Groove Ball Bearing (608 608ZZ 608-2RS)
Model NO.: 608
Clearance: C0, C2, C3, C4, C5
Cage: Nylon, Steel, Ceramic
Application: Skateboard
Precision Rating: ABEC7, ABEC3, ABEC5, ABEC9
Trademark: SKF & OEM & GAOYUAN
Transport Package: Carton /Plastic Bag
Specification: 8*22*7mm
Origin: Sweden
HS Code: 8482102000
Model NO.: 608
Clearance: C0, C2, C3, C4, C5
Cage: Nylon, Steel, Ceramic
Application: Skateboard
Precision Rating: ABEC7, ABEC3, ABEC5, ABEC9
Trademark: SKF & OEM & GAOYUAN
Transport Package: Carton /Plastic Bag
Specification: 8*22*7mm
Origin: Sweden
HS Code: 8482102000
Original Packing SKF NSK NTN Ceramic Deep Groove Ball bearing(608 608ZZ 608-2RS)