Roller bearing, one of the two members of the class of rolling, or so-called antifriction, bearings (the other member of the class is the Ball Bearing). Like a ball bearing, a roller bearing has two grooved tracks, or races, but the balls are replaced by rollers. The rollers may be cylinders or truncated cones. Only radial loads (i.e., loads perpendicular to the axis of rotation) can be carried when the rollers are cylindrical, but with conical rollers both radial and thrust, or axial, loads (i.e., ones parallel to the axis of rotation) can be carried. A needle bearing has cylindrical rollers that are relatively slender and completely fill the space between the races; in many cases the inner race is dispensed with. Because there is line contact between a roller and the races, while in a ball bearing there is point contact, in a given space a roller bearing can carry a greater radial load than a ball bearing.
Roller bearings are used in all main shaft and auxiliary drive shaft applications to support pure radial load, and allow for axial shaft elongation due to temperature changes with no additional load effect on the bearing. They are usually located at the ends of the turbine and compressor shafts and are often mounted in a housing, but separated from it by a layer of pressurized oil known as a squeeze film damper. Roller Bearing,Self-Aligning Roller Bearing,Double Row Roller Bearing,Neddle Roller Bearing Shijiazhuang Longshu Mechanical & Electrical Equipment Trading Co., Ltd. , https://www.longsbearings.com
ZSZM solar road studs are blinking when night falls. These items are charged during the daytime when the sun shines on them, and they will be flashing/steady on very brightly all night. They are widely used on roads, highway, tunnel, parking pots, gardens, squares and other public places.
Features:
1. Easily fixed.
2. Hight brightness LED beads.
3. Long time lifespan.
4. CE & RoHS certificates.
Descriptions:
1. Easily fix by epoxy resin glue or screw.
2. Hight brightness LED lamp.
3. Suit for edge line of traffic lane.
4. Environmental protection & energy saving.
5. Long time lifespan up to 3~4 years.
6. Anti-high(low) temperature Ni-MH Battery
7. Resist compression up to 20 tons.
8. Application: Expressway, Street, Cottage, Public Square & Garden.
Advantages:
1. Solid team of senior R&D engineers lead new product and provide professional solutions for all customer.
2. Our own roomy work shop, skilled workers to ensure product quality & product cost.
3. Particular recharging & discharging design for battery.
4. Customized design, OEM, ODM will be welcomed.
Lead Time:
A. 2~3 working days for sample order(<50 PCS).
B. 5~7 working days for formal order (approx 1000 PCS).
C. 8~10 working days for formal order (approx 5000 PCS).
Technical Specifications:
Model
NumberTypes
Color
Solar
PanelVoltage
Power (w)LED Quantity
Battery
ZSZM-DD-S-D125-01
Horseshoe
R/A/W/G/B
Mono-crystalline
silicon cell2 V
0.3W2 & 3 pieces/side
NI-MH battery
1.2V, 650 mAh
LED
 Taiwan Epistar or Tekcore
Starting intensity
 500 LUX
Luminous intensity
 5000mcd
Housing material
 Aluminum alloy / PC
Blinking Frequency
 60 times/minute, or customized
Flashing mode
 1 or 2 sides, Flashing or steady light, only working at  night
Visible distance
 > 800m
Working time
 98 hours after fully charged
Operating
Temperature -25ºC to 80ºC
Compression capacity
 Up to 20 Tons
Ingress protection
 IP67
Warranty period
 1 year
Packaging Info.
 2 pieces / each inner box, 60 pieces/carton, 23kg
Lead time
 1-5 days for sample, 10-15 days for bulk order
Delivery ways
 Express (UPS/DHL/FEDEX), by air or by sea
Payment terms
 T/T, L/C, Western Union, PayPal
 40% TT before production, EXW/CIF/CNF/FOB
Application:
Â
ZSZM solar road studs are blinking when night falls. These items are charged during the daytime when the sun shines on them, and they will be flashing/steady on very brightly all night. They are widely used on roads, highway, tunnel, parking pots, gardens, squares and other public places.
Features:
1. Easily fixed.
2. Hight brightness LED beads.
3. Long time lifespan.
4. CE & RoHS certificates.
Descriptions:
1. Easily fix by epoxy resin glue or screw.
2. Hight brightness LED lamp.
3. Suit for edge line of traffic lane.
4. Environmental protection & energy saving.
5. Long time lifespan up to 3~4 years.
6. Anti-high(low) temperature Ni-MH Battery
7. Resist compression up to 20 tons.
8. Application: Expressway, Street, Cottage, Public Square & Garden.
Advantages:
1. Solid team of senior R&D engineers lead new product and provide professional solutions for all customer.
2. Our own roomy work shop, skilled workers to ensure product quality & product cost.
3. Particular recharging & discharging design for battery.
4. Customized design, OEM, ODM will be welcomed.
Lead Time:
A. 2~3 working days for sample order(<50 PCS).
B. 5~7 working days for formal order (approx 1000 PCS).
C. 8~10 working days for formal order (approx 5000 PCS).
Technical Specifications:
Model
NumberTypes
Color
Solar
PanelVoltage
Power (w)LED Quantity
Battery
ZSZM-DD-S-D125-01
Horseshoe
R/A/W/G/B
Mono-crystalline
silicon cell2 V
0.3W2 & 3 pieces/side
NI-MH battery
1.2V, 650 mAh
LED
 Taiwan Epistar or Tekcore
Starting intensity
 500 LUX
Luminous intensity
 5000mcd
Housing material
 Aluminum alloy / PC
Blinking Frequency
 60 times/minute, or customized
Flashing mode
 1 or 2 sides, Flashing or steady light, only working at  night
Visible distance
 > 800m
Working time
 98 hours after fully charged
Operating
Temperature -25ºC to 80ºC
Compression capacity
 Up to 20 Tons
Ingress protection
 IP67
Warranty period
 1 year
Packaging Info.
 2 pieces / each inner box, 60 pieces/carton, 23kg
Lead time
 1-5 days for sample, 10-15 days for bulk order
Delivery ways
 Express (UPS/DHL/FEDEX), by air or by sea
Payment terms
 T/T, L/C, Western Union, PayPal
 40% TT before production, EXW/CIF/CNF/FOB
Application:
Â
In many cases, instead of having a separate inner race for roller bearings, the [inner race" is an integral part of the shaft or stub shaft. This reduces complexity, weight, and build-up of concentricity tolerances. Overall, this is cost effective, but the cost of replacement or repair is likely to be higher than for separate inner races.
Model NO.: ZSZM-DD-S-D125-01
Material: Mono-Crystalline Silicon Solar Cell, 100mA
Voltage: 2V
Output Max Consumption: 0.2W
Battery: Ni-MH Battery, 1.2V, 650 mAh
Colour: Red/White/Yellow/Green/Blue/Amber
Frequency: 2Hz±20% or Continual Light
Visible Distance: >800 M
Starting Light Intensity: <500 Lux
Ingress Protection: IP67
Trademark: ZM
Transport Package: 2 Pieces Per Inner Box, 60 Pieces Per Carton
Specification: CE & RoHs
Origin: China( Mainland) Shen Zhen
Model NO.: ZSZM-DD-S-D125-01
Material: Mono-Crystalline Silicon Solar Cell, 100mA
Voltage: 2V
Output Max Consumption: 0.2W
Battery: Ni-MH Battery, 1.2V, 650 mAh
Colour: Red/White/Yellow/Green/Blue/Amber
Frequency: 2Hz±20% or Continual Light
Visible Distance: >800 M
Starting Light Intensity: <500 Lux
Ingress Protection: IP67
Trademark: ZM
Transport Package: 2 Pieces Per Inner Box, 60 Pieces Per Carton
Specification: CE & RoHs
Origin: China( Mainland) Shen Zhen
Solar Road Stud
 Solar Road Stud
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