Representative product illustrationHRB / DEEP GROOVE BALL BEARINGS
6321
Deep Groove Ball Bearings
Versatile, non-separable bearings with deep raceway grooves. Designed primarily for radial loads, they can also accommodate axial loads in both directions under suitable operating conditions.
- Open, shielded and sealed designs in the catalog
- Single-row and selected double-row configurations
- Options for clearance, precision and vibration requirements
PRODUCT OVERVIEW
6321 — Deep Groove Ball Bearings
Versatile, non-separable bearings with deep raceway grooves. Designed primarily for radial loads, they can also accommodate axial loads in both directions under suitable operating conditions.
Sealing, clearance, lubrication and precision depend on the exact designation. Suffixes form part of the specification.
Typical application areas: Electric motors, Pumps & fans, Gearboxes, General machinery. Suitability is reviewed against the specific operating conditions and bearing arrangement.
Technical Specifications
| Brand | HRB |
|---|---|
| Designation | 6321 |
| Bearing Family | Deep Groove Ball Bearings |
| Bore Diameter d | 105 mm |
| Outside Diameter D | 225 mm |
| Width B | 49 mm |
| Basic Dynamic Load Rating | 182 kN |
| Basic Static Load Rating | 153 kN |
| Limiting Speed — Grease | 2800 r/min |
| Limiting Speed — Oil | 3400 r/min |
| Reference Weight | 8.25 kg |
| Bore Type | Confirm by designation |
| Material | Confirm by specification |
| Precision | Confirm by specification |
| Clearance / Sealing / Cage | According to the full designation |
| Availability & Delivery | Confirmed on quotation |
Source: HRB Rolling Bearings Catalog, printed page 135 / PDF page 139. Reference data supports initial selection; confirm the final drawing and exact specification before ordering.
Dimensions & Technical Documents
d = 105 mm; D = 225 mm; B = 49 mm
Ordering Information
Is there a minimum order quantity?+
There is no strict MOQ limit stated for standard bearings in the HRB product catalog. Quantities for custom and non-standard bearings are agreed according to specifications and manufacturing complexity. Availability and commercial terms are confirmed in the quotation.
Are samples available?+
Samples of standard models can be requested. Custom samples require technical review; sample cost and delivery time are agreed for the project.
What is the normal production lead time?+
The supplied company information states that in-stock standard models can be dispatched promptly, while regular standard bearing production orders normally require 60 working days. Availability, custom lead times and shipment dates are confirmed for each order.
What is the warranty policy?+
Warranty terms are agreed in the sales contract and apply under normal installation and compliant operating conditions. Manufacturing quality issues may receive technical support, repair or replacement according to the agreement. Improper use and human-caused damage are excluded.
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