Wuxi Guangqiang Bearing Trade Co.,Ltd
| Certifiion | ISO |
| Payment Terms | T/T,, |
| Supply Ability | 100000 Sets per month |
| Delivery Time | 3-5 working days |
| Packaging Details | in individual packing box |
| Type | U groove Track Roller Bearing |
| Material | Chrome Steel GCR15 |
| Precision rating | P0 P6 P5 P4 |
| Seals Type | rubber seal/ Metal Seal |
| Appliion | Industrial Machines |
| samples | available |
| Service | OEM Customized Services |
| Brand Name | GQZ |
| Model Number | LFR5201-14NPP LFR5201-14 LFR5201-14KDD |
| Place of Origin | China |
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Product Specification
| Certifiion | ISO | Payment Terms | T/T,, |
| Supply Ability | 100000 Sets per month | Delivery Time | 3-5 working days |
| Packaging Details | in individual packing box | Type | U groove Track Roller Bearing |
| Material | Chrome Steel GCR15 | Precision rating | P0 P6 P5 P4 |
| Seals Type | rubber seal/ Metal Seal | Appliion | Industrial Machines |
| samples | available | Service | OEM Customized Services |
| Brand Name | GQZ | Model Number | LFR5201-14NPP LFR5201-14 LFR5201-14KDD |
| Place of Origin | China | ||
| High Light | U Groove track roller bearing ，LFR50 rubber seal bearing ，metal seal track roller | ||
The LFR50 series U groove track roller bearings (including models LFR50/4-5, 50/5-4, 50/5-5, 50/5-6, LFR50/8-6-2RS) are specialized for industrial guide and transmission scenarios, featuring a U-shaped groove design for stable matching with corresponding guide rails. Available in two material options—high-strength bearing steel (N) and wear-resistant PP engineering plastic—and two seal types (rubber seal for dustproof/waterproof, metal seal for high-temperature resistance), they adapt to diverse working environments. The integrated U-groove structure ensures low-friction rolling and precise positioning, while precision processing enhances wear resistance and service life. Customizable dimensions, seal structures, and groove profiles are supported to meet personalized equipment needs, making them ideal for light-to-heavy load guide mechanisms.
Automated production line guide systems, logistics conveying equipment, textile machinery guide rollers, printing machinery positioning mechanisms, engineering machinery auxiliary guide components, warehouse automation devices, and light-to-heavy load material handling systems
LFR50 Series U Groove Track Roller Bearings (interchangeable with bearings matching "LFR50 model + U-groove structure + corresponding seal/material + size" specifiions, including brand equivalents from SKF, INA, and NTN for industrial guide systems)
| Parameter Item | Details |
|---|---|
| Product Model | LFR50/4-5, 50/5-4, 50/5-5, 50/5-6, LFR50/8-6-2RS U Groove Track Roller Bearing |
| Type | U Groove Precision Track Roller Bearing |
| Available Models | LFR50/4-5, 50/5-4, 50/5-5, 50/5-6, LFR50/8-6-2RS (customizable) |
| Material | Bearing Steel (N), PP Engineering Plastic (wear-resistant) |
| Seal Type | Rubber Seal (dustproof/waterproof), Metal Seal (high-temperature resistant), 2RS (double-sided rubber seal) |
| Designation | dw (mm) | d (mm) | D (mm) | C (mm) | B (mm) | A (mm) | r (min.) | Cr (Dynamic, kN) | Cor (Static, kN) | Ball numbers | Mass (g) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| UBM | 5 | 4 | 13 | 6 | 7 | 8.04 | 0.2 | 1.05 | 0.85 | 18 | 9 |
| LFR50/4NPP | 4 | 5 | 16 | 7 | 8 | 9 | 0.2 | 1.2 | 0.86 | 18 | 7 |
| LFR50/5-4KDD | 4 | 5 | 16 | 7 | 8 | 9 | 0.2 | 1.2 | 0.86 | 18 | 9 |
| LFR50/5KDD | 6 | 5 | 17 | 7 | 8 | 10.5 | 0.2 | 1.27 | 0.82 | 18 | 9 |
| LFR50/5NPP | 6 | 5 | 17 | 7 | 8 | 10.5 | 0.2 | 1.27 | 0.82 | 18 | 10 |
| LFR50/8KDD | 6 | 8 | 24 | 11 | 11 | 14 | 0.3 | 3.67 | 2.28 | 14 | 20 |
| LFR50/8NPP | 6 | 8 | 24 | 11 | 11 | 14 | 0.3 | 3.67 | 2.28 | 14 | 20 |
| LFR5201KDD | 10 | 10 | 35 | 15.9 | 15.9 | 20.065 | 0.3 | 8.5 | 5.1 | 18 | 80 |
| LFR5201NPP | 10 | 10 | 35 | 15.9 | 15.9 | 20.065 | 0.3 | 8.5 | 5.1 | 18 | 80 |
| LFR5202NPP | 12 | 12 | 45 | 15.9 | 15.9 | 26.5 | 0.3 | 9.7 | 6.1 | 20 | 100 |
| LFR5301KDD | 10 | 10 | 42 | 19 | 19 | 24 | 0.6 | 13 | 7.7 | - | 100 |
| LFR5301NPP | 10 | 10 | 42 | 19 | 19 | 24 | 0.6 | 13 | 7.7 | - | 100 |
| LFR5302KDD | 10 | 10 | 47 | 19 | 19 | 26.651 | 1 | 16.2 | 9.2 | 18 | 170 |
| LFR5302NPP | 10 | 10 | 47 | 19 | 19 | 26.651 | 1 | 16.2 | 9.2 | 18 | 170 |
| LFR5201-12KDD | 12 | 12 | 35 | 15.9 | 15.9 | 21.75 | 0.3 | 8.4 | 5 | 18 | 85 |
| LFR5201-12KDP | 12 | 12 | 35 | 15.9 | 19 | 21.75 | 0.3 | 8.4 | 5 | 18 | 85 |
| LFR5201-14NPP | 14 | 12 | 40 | 18 | 20 | 24 | 0.3 | 9.8 | 5 | 18 | 95 |
| LFR5201-14NPP | 14 | 14 | 40 | 18 | 20 | 24 | 0.3 | 9.8 | 5 | 18 | 95 |
| LFR5204-16KDD | 16 | 16 | 52 | 20.6 | 20.6 | 31.5 | 0.6 | 16.8 | 9.5 | 16 | 230 |
| LFR5204-16NPP | 16 | 16 | 52 | 20.6 | 20.6 | 31.5 | 0.6 | 16.8 | 9.5 | 16 | 230 |
| LFR5206-20KDD | 20 | 20 | 52 | 23.8 | 23.8 | 41 | 0.6 | 29.5 | 16.6 | 18 | 250 |
| LFR5206-20NPP | 20 | 20 | 57 | 23.8 | 23.8 | 41 | 0.6 | 29.5 | 16.6 | 18 | 250 |
| LFR5206-25KDD | 25 | 25 | 57 | 23.8 | 23.8 | 43.5 | 29.2 | 29.2 | 16.4 | 18 | 250 |
| LFR5206-25NPP | 25 | 25 | 57 | 23.8 | 23.8 | 43.5 | 0.6 | 29.2 | 16.4 | 18 | 250 |
| LFR5207-30KDD | 30 | 30 | 80 | 27 | 27 | 51 | 1 | 38 | 20.8 | 18 | 660 |
| LFR5207-30NPP | 30 | 30 | 80 | 27 | 27 | 51 | 1 | 38 | 20.8 | 18 | 660 |
| LFR5208-40KDD | 40 | 40 | 98 | 36 | 36 | 62.5 | 1 | 54.8 | 29 | 18 | 1360 |
| LFR5208-40NPP | 40 | 40 | 98 | 36 | 36 | 62.5 | 1 | 54.8 | 29 | 18 | 1360 |
Q: What’s the difference between rubber seal and metal seal for LFR50 series bearings?
A: Rubber seals excel in dustproof/waterproof performance for general environments, while metal seals resist high temperatures (up to 200℃) for harsh high-heat working conditions.
Q: When to choose bearing steel (N) or PP material for these bearings?
A: Choose bearing steel (N) for heavy-load or high-strength scenarios; PP material is ideal for light-load, corrosion-resistant, or low-noise requirements.
Q: Can LFR50 series bearings be customized with non-standard dimensions?
A: Yes, inner diameter, outer diameter, width, and groove size can be customized to match specific guide rail and equipment installation needs.
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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