NSK 30319 CA tapered roller bearing
- Brand
- NSK
- Category
- Bearings
- Subcategory
- Tapered roller bearings
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Decoding NSK 30319 CA
- 303Series
- Tapered roller bearings, 303 series. Series differ in outside diameter and width even when the bore is the same.
- 19Bore
- Bore 95 mm (19 × 5).
- CASuffix
- NSK suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
30319 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
NSK 30319 CA measures 95 mm across the bore and 200 mm across the outside diameter; its total width is 49.5 mm (95 x 200 x 49.5 mm).
NSK 30319 CA belongs to tapered roller bearing, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for 30319 CA and any equivalents.
Tapered roller bearings from NSK handle radial and axial forces together in one direction. The tapered geometry of races and rollers produces linear contact, which spreads the load across the rolling surface. You will find them in gearboxes, machine tool spindles and conveying equipment, where motion has to be transmitted accurately and withstand heavy duty. Our team helps you match the right model to your application.
Reading the NSK code tells you what you are holding. The base number carries the size and series; the CA suffix marks internal design details such as contact angle or cage type. Take 30216 CA and 30217 CA: the 302 prefix points to a single-row tapered roller series. In 30319 CA and 32315 CA, the 303 and 323 prefixes indicate series with their own dimensions and capacities. The CA suffix appears in every case, so it must be respected when specifying a replacement.
These bearings work across many sectors. You will see them in gearboxes, reducers, transmission shafts, road machinery, agricultural equipment and conveying systems, and also in food, cement and mining operations where loads run high and conditions are tough. Because they take combined loads, they suit equipment that applies radial and axial forces at the same time.
Selection comes down to a few points: the radial and axial load the bearing will carry, the rotation speed and the mounting arrangement. Check sealing carefully. In dusty or damp surroundings, choose a version with seals or deflectors. Lubrication matters too, grease or oil depending on the application, and the shaft and housing must stay precisely aligned to prevent premature wear. Internal clearance also affects how the bearing performs and how long it lasts.
Interchange between brands is possible for tapered roller bearings when the main dimensions and tolerances line up. The NSK range covers many references that can replace other recognized makes, but confirm the technical data and the suffix before installing. Send us the original part number and we will point you to the compatible option.
To get a quote, message us on WhatsApp with the exact part number or the measurements. We answer quickly and guide you toward the right solution for your equipment, including specific variants within the NSK line.
Dimensions
95 x 200 x 49.5 mm (d x D x T): boundary dimensions for basic designation 30319, according to ISO 355.
- Bore
- 95 mm
- Outside diameter (D)
- 200mm
- Total width (T)
- 49.5mm
SKF and other brands, same size
Other brands' pages with basic designation 30319: 95 x 200 x 49.5 mm (d x D x T) per ISO 355.
What they share are the ISO 355 boundary dimensions, not the specs: seals or shields, internal clearance, cage and load rating may vary with brand and suffix. Every quote is by full part number.
Frequently asked questions
- NSK 30319 CA bearing: what are its dimensions?
- NSK 30319 CA measures 95 mm across the bore and 200 mm across the outside diameter; its total width is 49.5 mm (95 x 200 x 49.5 mm). Those are the boundary dimensions standardized in ISO 355 for basic designation 30319.
- What does the CA suffix mean on these NSK bearings?
- It identifies an internal design feature, such as the contact angle or the cage type. Keep it in mind when replacing a bearing so the new unit works as intended.
- Can a bearing from another brand replace the NSK one?
- Compare bore, outer diameter, width and tolerances. When those match, interchange may be possible. Send us the original part number and we will help you check the equivalence.
- Which lubricant should I use on a tapered roller bearing?
- It depends on the application. Grease suits moderate speeds and clean environments; oil is used at high speeds and elevated temperatures. Follow the equipment manufacturer's instructions and keep lubrication at the right level.