The NJ304ECP cylindrical roller bearing is a single-row bearing specifically designed to handle both high radial loads and moderate axial loads in one direction. The "NJ" designation indicates that the bearing features an outer ring with flanges on both sides, and an inner ring with no flanges. This design allows for axial guidance of the shaft in one direction while also providing high radial load capacity.
The "304" part of the designation refers to the bearing's size, with "30" representing the bearing series and "04" indicating the bore size of 20 mm. The "ECP" suffix refers to specific design features, such as a reinforced cage (often made of glass fiber reinforced polyamide or steel) and optimized internal geometry to improve the bearing's overall performance, load-carrying capacity, and longevity.
NJ304ECP cylindrical roller bearings are commonly used in applications like electric motors, gearboxes, pumps, and various industrial machinery, where both radial and axial load support is required. The flanged design of the outer ring enables axial load handling in one direction, while the bearing's structure ensures smooth and reliable operation, making it well-suited for high-speed applications and environments with moderate axial displacement.
Principal Dimensions
d: 20mm
D: 52mm
B: 15mm
Fw: -
Ew: 40mm
Radial clearance class: Standard
Mass: 0.150 kg
Basic Load Ratings
Dynamic: 31.5 kn
Static: 27.0 kn
Limiting Speeds
Grease: 11,000 min-1
Oil: 14,000 min-1
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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.
UPS Next Working Day – UK Mainland Only
£8.50 – Orders placed before 4pm will be received the next working day, Monday to Friday. You will receive an email from UPS with full tracking details.
UPS Northern Ireland 2 Day Service
£15.00 – This is a two day service from UPS to Northern Ireland. You will receive an email from UPS with full tracking details.
UPS Northern Ireland Next Day Service
£35.00 - This is a next day service from UPS to Northern Ireland. You will receive an email from UPS with full tracking details.
UPS Next Working Day AM – Pre 12 UK Mainland Only
£20.00 - Orders placed before 4pm will be received the next working day before Midday. You will receive an email from UPS with full tracking details.
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£25.00 - Orders placed before 4pm will be received the next working day before 10.30am. You will receive an email from UPS with full tracking details.
Scottish Islands 2-3 Day Service
£25.00 - This is a two to three day service from UPS. You will receive an email from UPS with full tracking details.
Scottish Highlands 2-3 Day service
£35.00 - This is a two to three day service from UPS. You will receive an email from UPS with full tracking details.
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.
