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K Series
SUMA
| Size: | |
|---|---|
| Torque: | |
| Shaft Limiting Speed : | |
| Outer Ring Limiting Speed : | |
| Outer Race Material: | |
| Needle Material: | |
K Series Needle Roller and Cage Assembly – Compact & High Load
The K20x24x10 Needle Roller Bearing Assembly is a precision K Series needle roller and cage assembly, designed
for applications requiring high radial load capacity within extremely limited radial space.
This needle roller bearing assembly is supplied without inner or outer rings, allowing the shaft and housing bore to
act directly as raceways.
This design reduces bearing envelope size, weight, and system cost while maintaining excellent load performance
and high-speed capability.
Supports high radial loads in compact mechanical systems
Provides accurate roller guidance for smooth rotation
Reduces friction and power loss
Enables stable operation at high rotational speeds
Extends service life of shafts and housings
Ideal for designs where conventional bearings cannot be installed due to space constraints.
Needle rollers offer a large contact area, allowing significantly higher load ratings than ball bearings of comparable size.
Eliminating inner and outer rings reduces material usage and simplifies the bearing arrangement.
Optimized cage design ensures stable roller motion, low vibration, and reliable operation.
Available with steel cages for heavy-duty applications and nylon (TN) cages for lightweight and low-noise requirements.
| Item | Specification |
|---|---|
| Bearing Type | Needle Roller & Cage Assembly |
| Series | K Series |
| Model | K20x24x10 |
| Original Code | 29241/20 |
| Shaft Diameter (Fw) | 20 mm |
| Outer Diameter (D) | 24 mm |
| Width (C) | 10 mm |
| Approx. Weight | 6.5 g |
| Dynamic Load Rating | 8,700 N |
| Static Load Rating | 12,100 N |
| Limiting Speed (Oil) | 19,000 rpm |
| Cage Material | Steel / Nylon (TN) |
Needle Rollers: High-carbon chromium bearing steel (GCr15 / 100Cr6)
Cage: Hardened steel or reinforced nylon
Heat Treatment: Through-hardened for wear resistance
Surface Finish: Precision ground to minimize friction
Each bearing assembly is manufactured under strict quality control to ensure dimensional accuracy and consistent performance.
Gearboxes and speed reducers
Electric motors and power tools
Industrial transmission systems
Motorcycles and scooters
Agricultural machinery
Packaging and printing equipment
Automation and mechanical equipment
Shaft and housing bore must be hardened and ground
Proper lubrication is required during operation
Suitable for oil or grease lubrication
Follow recommended tolerances to ensure optimal bearing life
Small items: 10 pcs per roll pack + carton
Medium items: Roll pack + carton + wooden box
Bulk quantities: Wooden box or pallet
OEM labeling and customized packaging available
In-stock models: Immediate shipment
Standard production: 10–15 days
Large or customized orders: 20–25 days
✔ Professional needle roller bearing manufacturer
✔ Stable quality and long service life
✔ Competitive wholesale pricing
✔ OEM & ODM service supported
FAQ
1. Are you Trading Company or Manufacturer ?
SUMA is Manufacturer with one-stop service , Production history over 20 years, exporting experience up to 10 years .
2. Can i have Samples to check quality first ?
It is okay to get needle roller bearing sample for quality check, we provide 5-10 pieces sample free of charge.
3. How can i choose the correct needle roller bearing i need ?
Torque capacity , Rotation Speed , and Dimensions are necessary to choose the right model.
If you not so sure about it, pls share with us, our engineer will give you professional guidance .
4. What Material of the bearings you are supplied ?
Standard Material : Outer Race : ST14, Needle Roller: GCr15 , Cage: PA66
Stainless Steel Material available too .
5. How soon you can make the shipment ?
Usually all are in stock, can ship out within 2-3 days .
If big quantity, can ship out in 10 days .
Customized sizes may need 15-20 days , Depends on specific order.
K Series Needle Roller and Cage Assembly – Compact & High Load
The K20x24x10 Needle Roller Bearing Assembly is a precision K Series needle roller and cage assembly, designed
for applications requiring high radial load capacity within extremely limited radial space.
This needle roller bearing assembly is supplied without inner or outer rings, allowing the shaft and housing bore to
act directly as raceways.
This design reduces bearing envelope size, weight, and system cost while maintaining excellent load performance
and high-speed capability.
Supports high radial loads in compact mechanical systems
Provides accurate roller guidance for smooth rotation
Reduces friction and power loss
Enables stable operation at high rotational speeds
Extends service life of shafts and housings
Ideal for designs where conventional bearings cannot be installed due to space constraints.
Needle rollers offer a large contact area, allowing significantly higher load ratings than ball bearings of comparable size.
Eliminating inner and outer rings reduces material usage and simplifies the bearing arrangement.
Optimized cage design ensures stable roller motion, low vibration, and reliable operation.
Available with steel cages for heavy-duty applications and nylon (TN) cages for lightweight and low-noise requirements.
| Item | Specification |
|---|---|
| Bearing Type | Needle Roller & Cage Assembly |
| Series | K Series |
| Model | K20x24x10 |
| Original Code | 29241/20 |
| Shaft Diameter (Fw) | 20 mm |
| Outer Diameter (D) | 24 mm |
| Width (C) | 10 mm |
| Approx. Weight | 6.5 g |
| Dynamic Load Rating | 8,700 N |
| Static Load Rating | 12,100 N |
| Limiting Speed (Oil) | 19,000 rpm |
| Cage Material | Steel / Nylon (TN) |
Needle Rollers: High-carbon chromium bearing steel (GCr15 / 100Cr6)
Cage: Hardened steel or reinforced nylon
Heat Treatment: Through-hardened for wear resistance
Surface Finish: Precision ground to minimize friction
Each bearing assembly is manufactured under strict quality control to ensure dimensional accuracy and consistent performance.
Gearboxes and speed reducers
Electric motors and power tools
Industrial transmission systems
Motorcycles and scooters
Agricultural machinery
Packaging and printing equipment
Automation and mechanical equipment
Shaft and housing bore must be hardened and ground
Proper lubrication is required during operation
Suitable for oil or grease lubrication
Follow recommended tolerances to ensure optimal bearing life
Small items: 10 pcs per roll pack + carton
Medium items: Roll pack + carton + wooden box
Bulk quantities: Wooden box or pallet
OEM labeling and customized packaging available
In-stock models: Immediate shipment
Standard production: 10–15 days
Large or customized orders: 20–25 days
✔ Professional needle roller bearing manufacturer
✔ Stable quality and long service life
✔ Competitive wholesale pricing
✔ OEM & ODM service supported
FAQ
1. Are you Trading Company or Manufacturer ?
SUMA is Manufacturer with one-stop service , Production history over 20 years, exporting experience up to 10 years .
2. Can i have Samples to check quality first ?
It is okay to get needle roller bearing sample for quality check, we provide 5-10 pieces sample free of charge.
3. How can i choose the correct needle roller bearing i need ?
Torque capacity , Rotation Speed , and Dimensions are necessary to choose the right model.
If you not so sure about it, pls share with us, our engineer will give you professional guidance .
4. What Material of the bearings you are supplied ?
Standard Material : Outer Race : ST14, Needle Roller: GCr15 , Cage: PA66
Stainless Steel Material available too .
5. How soon you can make the shipment ?
Usually all are in stock, can ship out within 2-3 days .
If big quantity, can ship out in 10 days .
Customized sizes may need 15-20 days , Depends on specific order.
