Representative product illustrationHRB / ANGULAR CONTACT BALL BEARINGS
QJ310
Angular Contact Ball Bearings
Offset raceways create a contact angle for carrying combined radial and axial loads. Single-row bearings generally carry axial load in one direction and are frequently used in matched arrangements.
- Single-row, double-row and four-point contact designs
- Contact angle and preload options by designation
- Back-to-back, face-to-face and tandem arrangements
PRODUCT OVERVIEW
QJ310 — Angular Contact Ball Bearings
Offset raceways create a contact angle for carrying combined radial and axial loads. Single-row bearings generally carry axial load in one direction and are frequently used in matched arrangements.
Contact angle, matching, preload and speed capability must be checked for the complete bearing arrangement.
Typical application areas: Machine tool spindles, Industrial pumps, Precision drives, Compressors. Suitability is reviewed against the specific operating conditions and bearing arrangement.
Technical Specifications
| Brand | HRB |
|---|---|
| Designation | QJ310 |
| Bearing Family | Angular Contact Ball Bearings |
| Bore Diameter d | 50 mm |
| Outside Diameter D | 110 mm |
| Width B | 27 mm |
| Basic Dynamic Load Rating | 110 kN |
| Basic Static Load Rating | 91.5 kN |
| Limiting Speed — Grease | 5000 r/min |
| Limiting Speed — Oil | 6700 r/min |
| Reference Weight | 1.35 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 261 / PDF page 265. Reference data supports initial selection; confirm the final drawing and exact specification before ordering.
Dimensions & Technical Documents
d = 50 mm; D = 110 mm; B = 27 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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