High Precision Angular Contact Ball Bearings (standard series) have a line connecting the contact points drawn in the radial direction which is called the contact angle. This contact angle makes the bearing suitable for accommodating radial loads, single direction axial loads and a combination of both, these bearings are generally used in pairs but can also be used in triplex sets, quadruplex sets or multiplex sets,
70xx, 72xx and 79xx series have three types of contact angle 15 degree (C), 25 degree (A5) and 30 degree (A), all come with two types of cage design either phenolic (TR) or polyamide (TYN),
Boundary Dimensions
| d |
20 |
mm |
Bore diameter |
| D |
42 |
mm |
Outside diameter |
| B |
12 |
mm |
Width |
| r(min.) |
0.6 |
mm |
Chamfer Dimension |
| r1(min.) |
0.3 |
mm |
Chamfer Dimension |
Basic Load Ratings
| Cr |
13.4 |
kN |
Basic Dynamic Load Rating |
| C0r |
6.25 |
kN |
Basic Static Load Rating |
Speeds
| Grease |
32300 |
min-1 |
Limiting Speed |
| Oil (Oil-air) |
48400 |
min-1 |
Limiting Speed |
Dimensions
|
A5: 25° |
|
Contact Angle |
| a |
13.2 |
mm |
Effective Load Center |
Abutment and Fillet Dimensions
| da(min.) |
25 |
mm |
Diameter of Shaft Abutment |
| Da(max.) |
37 |
mm |
Diameter of Housing Abutment |
| Db(max.) |
39.5 |
mm |
Diameter of Housing Abutment |
| ra(max.) |
0.6 |
mm |
Radius of Shaft or Housing Fillet |
| rb(max.) |
0.3 |
mm |
Radius of Shaft or Housing Fillet |
Performance
| Pa |
5.45 |
kN |
Permissible Axial Load |
Preload,Rigidity(DB and DF arrangement)
|
Preload |
Axial Rigidity |
Measured axial clearance |
| EL |
36N |
51N/μm |
-1μm |
| L |
81N |
68N/μm |
-4μm |
| M |
206N |
97N/μm |
-10μm |
| H |
403N |
127N/μm |
-17μm |
Additional information
|
0.41 |
g/brg |
Recommended Grease Quantities |
Mass
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We offer a range of shipping options to suit you.
Royal Mail Standard Shipping
£1.50 - Our cheapest shipping method for parcels up to 500g. Parcels are sent using the Royal Mail standard shipping service and usually take 2-5 working days to arrive. This service isn’t tracked at any stage until point of delivery.
Royal Mail Tracked 48
£3.00 - Parcels up to 2kg. Their aim is to deliver in 2-3 working days. You will receive an email from Royal Mail with full tracking details.
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SAME DAY TAXI – Please call 01709 527269 for a quote and we will try to accommodate where possible.
Click and Collect
FREE - We offer a Click & Collect service for customers that are able to collect from our premises at Bearing King. Unit 5, Northfield Business Park, Parkgate, Rotherham S60 1SD United Kingdom.
Please note, you will be notified by email when your order is available for collection.
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Returns Policy
1. You may return an unused item in new condition unless faulty within 30 days of receipt. Damaged or used goods cannot be refunded.
2. A copy of our returns form must be included with the returned goods.
3. Customers will be responsible for the original and return shipping charges unless our customer service department determines that we are at fault for an order error or product defect. Bearing King will not be responsible for any return item lost in transit.
4. Once we receive the package and the goods are checked, we will refund you by the payment method used when the order was placed.
5. Please allow 3-5 days for your return to be processed or exchange to be sent.
