Wuxi Guangqiang Bearing Trade Co.,Ltd
| Width（B） | 21.75mm |
| Supply Ability | 100000 Sets per month |
| Precision rating | P0/P6 |
| Bearing Model | 4T-30210 |
| Material | GCr15 Chrome Bearing Steel |
| Delivery Time | 3-5 working days |
| Number of row | Single Row |
| Payment Terms | T/T,, |
| Outer diameter（D） | 90mm |
| Inner diameter（d） | 50mm |
| Certifiion | ISO9001:2015 |
| Seals type | Open |
| Packaging Details | in individual packing box |
| Brand Name | GQZ /OEM |
| Model Number | 4T-30210 |
| Place of Origin | China |
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Product Specification
| Width（B） | 21.75mm | Supply Ability | 100000 Sets per month |
| Precision rating | P0/P6 | Bearing Model | 4T-30210 |
| Material | GCr15 Chrome Bearing Steel | Delivery Time | 3-5 working days |
| Number of row | Single Row | Payment Terms | T/T,, |
| Outer diameter（D） | 90mm | Inner diameter（d） | 50mm |
| Certifiion | ISO9001:2015 | Seals type | Open |
| Packaging Details | in individual packing box | Brand Name | GQZ /OEM |
| Model Number | 4T-30210 | Place of Origin | China |
| High Light | Single Row Tapered Roller Bearing 50x90x21.75mm ，Tapered Roller Bearing for Agricultural Machinery ，Open Tapered Roller Bearing for Construction Axles | ||
4T-30210 is standard metric single row tapered roller bearing following ISO and NTN specifiions, dimension 50×90×21.75mm. Made of hardened GCr15 bearing steel, equipped with stamped steel cage to guide tapered rollers evenly.
The bearing is fully separable: inner ring assembly and outer ring can be taken apart separately, convenient for installation, preload adjustment and maintenance. Medium contact angle design balances radial load and one-way axial load perfectly. Open unsealed structure is designed for oil bath lubriion inside closed housings such as vehicle axles and gearboxes, with excellent heat dissipation and lubricant circulation effect. Widely used in light trucks, passenger cars, agricultural machinery and general industrial transmission systems.
*Send your detailed requirements to get matched bearing solutions promptly.
| Parameter Item | Specifiion |
|---|---|
| Model | 4T-30210 |
| Bearing Type | Single Row Tapered Roller Bearing |
| Number of Row | Single Row |
| Inner Diameter (d) | 50 mm |
| Outer Diameter (D) | 90 mm |
| Total Width (T) | 21.75 mm |
| Inner Ring Width (B) | 20 mm |
| Outer Ring Width (C) | 16 mm |
| Min Fillet Radius | 1.5 mm |
| Basic Dynamic Load Cr | 73.2 kN |
| Basic Static Load C0r | 88.5 kN |
| Limiting Speed (Grease) | 3200 rpm |
| Limiting Speed (Oil) | 4200 rpm |
| Seal Type | Open (No Seals) |
| Cage | Stamped Steel Cage |
| Structure | Separable cone & cup; bears radial + unidirectional axial load |
| Material | GCr15 Bearing Steel |
| Net Weight | 0.58 kg |
| Working Temp | -30℃ ~ +120℃ |
| Precision Grade | Standard P0 |
*Check matched bearing models to complete your mechanical assembly.
Q1: Full dimensions?
A: ID 50mm, OD 90mm, total assembly width 21.75mm
Q2: What does 4T mean?
A: NTN series code, means complete assembled tapered roller bearing unit
Q3: Seal type?
A: Open, without any rubber or metal seals
Q4: Can it withstand two-way axial load alone?
A: Single bearing only supports one-way axial force; two bearings installed oppositely realize bidirectional axial positioning
Q5: Limiting rotation speeds?
Grease lubriion:3200rpm; Oil lubriion:4200rpm
*Contact us anytime for technical parameter consultation & selection guidance.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Trading Company
Year Established:
1989
Total Annual:
1000000-10000000
Employee Number:
10~100
Ecer Certification：
Verified Supplier
Established in 1999, Wuxi Guangqiang Bearing Trade Co.,Ltd works hard in researching and manufacturing high quality bearings and rely on it's advantages of strong technologies, advanced equipment, professional technical team, quality production and reasonable prices has gain a broad... Established in 1999, Wuxi Guangqiang Bearing Trade Co.,Ltd works hard in researching and manufacturing high quality bearings and rely on it's advantages of strong technologies, advanced equipment, professional technical team, quality production and reasonable prices has gain a broad...
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