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400X575X50 R21
Seals
400X575X50 R21
Seals
Unclassified Seals with Open seals. A versatile bearing suitable for a range of mechanical applications. Manufactured from Chrome Steel (SAE 52100) for durability and long service life. In Stock at Buy Bearings. Order by 1pm for next-day UK dispatch.
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Found it cheaper elsewhere? We’ll match any UK competitor’s price on bearings in stock — call us before you buy.
Need pricing for this part?
This bearing is priced on application. Our team will get back to you with competitive pricing within 24 hours, no obligation.
Unclassified Seals with Open seals. A versatile bearing suitable for a range of mechanical applications. Manufactured from Chrome Steel (SAE 52100) for durability and long service life. In Stock at Buy Bearings. Order by 1pm for next-day UK dispatch.
Price Match Promise
Found it cheaper elsewhere? We’ll match any UK competitor’s price on bearings in stock — call us before you buy.
Technical Dimensions & Load Ratings
Confirm these values match your shaft, housing and application requirements before ordering.
Dimensions
| Bore Diameter (d) | 400mm |
| Outer Diameter (D) | 575mm |
| Width (B) | 50mm |
400X575X50 R21
Seals
Technical Specifications
| Part Number | 400X575X50 R21 |
| Brand | Unclassified |
| Bearing Type | Seals |
| Seal Type | Open |
| Material | Chrome Steel (SAE 52100) |
| Cross-Reference | 400X500X50 R23 |
| Bore (Inner Diameter) | 400 mm |
| Outer Diameter | 575 mm |
| Width / Thickness | 50 mm |
Enquire About the Unclassified 400X575X50 R21
Get a competitive quote within 24 hours — no obligation. Our engineering team can help with specifications, cross-references, and volume pricing.
Technical Datasheet
Download full specifications for 400X575X50 R21 — dimensions, load ratings, and material data.
Equivalent part numbers from other manufacturers that can be used as direct replacements for 400X575X50 R21.
Engineering support
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About the Unclassified 400X575X50 R21
The Unclassified 400X575X50 R21, is a seals, in an open configuration for maximum speed and easy relubrication, featuring a 400mm bore, 575mm outer diameter, and 50mm width, manufactured from chrome steel (sae 52100), and is in stock at Buy Bearings.
Unclassified Seals with Open seals. A versatile bearing suitable for a range of mechanical applications. Manufactured from Chrome Steel (SAE 52100) for durability and long service life. In Stock at Buy Bearings. Order by 1pm for next-day UK dispatch.
Key Specifications
The 400X575X50 R21 seals is specified with 400mm bore (inner diameter), 575mm outer diameter, 50mm width. The Open sealing arrangement protects against contamination and retains lubricant for extended service life. The chrome steel (sae 52100) construction provides excellent wear resistance and durability in demanding operating conditions.
Common Applications
Sealss are commonly used in:
Why Buy the 400X575X50 R21 from Buy Bearings?
- UK-authorised distributor with genuine Unclassified products
- Expert technical support from our engineering team
- Competitive pricing with fast UK dispatch
- Full technical datasheet and cross-reference support
- 30-day returns on standard products
Frequently Asked Questions
What is a 400X575X50 R21 bearing?
The 400X575X50 R21 is a Unclassified Seals with a 400mm bore, 575mm outer diameter and 50mm width. It is In Stock at Buy Bearings.
What are the 400X575X50 R21 dimensions?
The 400X575X50 R21 measures 400mm bore (inner diameter) × 575mm outer diameter × 50mm width.
What does Open mean on a bearing?
Open bearings have no seals or shields, allowing maximum speed and easy relubrication — best for clean, lubricated environments.
What is the 400X575X50 R21 cross-reference?
The 400X575X50 R21 is interchangeable with 400X500X50 R23. Contact our team to confirm an exact equivalent for your application.
Is the 400X575X50 R21 in stock?
The 400X575X50 R21 is In Stock at Buy Bearings. Submit an enquiry or call our sales team for current stock and pricing (POA).
Related & Compatible Bearings
Same seals, closest dimensions first — useful if you need a slightly different size or this part is unavailable.
Related Parts — Seals & Bushings
Matching seals and bushings for 400mm shaft diameter — complementary components for your bearing.