Representative product illustrationHRB / SPHERICAL ROLLER BEARINGS
21320C
Spherical Roller Bearings
Two rows of barrel-shaped rollers operate in a spherical outer raceway. This supports radial and combined loads while accommodating alignment differences and shaft deflection.
- Cylindrical and tapered bore options
- C and CA internal design variants
- W33 lubrication groove and hole options
PRODUCT OVERVIEW
21320C — Spherical Roller Bearings
Two rows of barrel-shaped rollers operate in a spherical outer raceway. This supports radial and combined loads while accommodating alignment differences and shaft deflection.
Lubrication features, bore taper and cage design depend on the full suffix. Verify the mounting and lubrication arrangement.
Typical application areas: Crushers, Vibrating screens, Paper machinery, Metallurgical equipment. Suitability is reviewed against the specific operating conditions and bearing arrangement.
Technical Specifications
| Brand | HRB |
|---|---|
| Designation | 21320C |
| Bearing Family | Spherical Roller Bearings |
| Bore Diameter d | 100 mm |
| Outside Diameter D | 215 mm |
| Width B | 47 mm |
| Basic Dynamic Load Rating | 385 kN |
| Basic Static Load Rating | 530 kN |
| Limiting Speed — Grease | 1700 r/min |
| Limiting Speed — Oil | 2200 r/min |
| Reference Weight | 8.8 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 427 / PDF page 431. Reference data supports initial selection; confirm the final drawing and exact specification before ordering.
Dimensions & Technical Documents
d = 100 mm; D = 215 mm; B = 47 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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