330 series

329 Series Ultra-Thin Single Row Tapered Roller Bearings Full Sizes & Complete Suffix Guide

We supply full range 329 series ultra-thin single row tapered roller bearings from 32904 to 32920, slim narrow cross-section design with optimized small contact angle, compact lightweight structure saving maximum installation space, the preferred precision bearing for compact auto transmissions, small gearboxes and limited-space precision machinery distributors. Multiple clearance grades, standard pressed steel/ solid brass cages, P0-P5 precision grades fully in stock. Bulk buyers can check full dimension chart and suffix explanations below for car differentials, miniature reducers, precision machine tools and compact motor equipment use. All models support mixed batch OEM & custom export packaging, fully interchangeable with Timken, SKF, NTN original tapered roller bearings.

Ultra-Thin Compact Slim Section Design

329 series adopts narrow thin roller & raceway structure, minimal overall width and outer diameter compared to wide-section 330/322 series, ultra-light weight for narrow assembly cavities. Balanced radial and light axial load capacity meets compact equipment layout demands, precision super-finished roller surfaces cut running friction and heat generation, stable low-noise operation under continuous medium-speed working conditions, effectively reduce whole equipment volume and weight.

Multiple Internal Clearance & Cage Configuration Options

Manufactured with high purity GCr15 bearing steel via precise quenching heat treatment, 329 series covers standard CN, C3, C4 clearance grades to match normal/high-temperature compact transmission working environments. Two mainstream cage solutions: stamped low-carbon steel cage for cost-effective mass wholesale, solid brass cage for high-speed continuous precision running. Strict dimensional tolerance control ensures perfect assembly matching for automotive and miniature industrial machinery repair.

Universal Compact Precision Application Scope

Suitable for automotive transmission systems & car differentials, small compact gear reducers, precision machine tool spindles, miniature pump & motor units, compact generator bearing assemblies, light agricultural micro machinery, small construction hydraulic equipment and all kinds of narrow-space light-medium load transmission drive systems.

32904-32920 Full Dimension Table (d/D/T mm)

Internal Clearance Suffix Code Chart (329 Tapered Roller Series)

Cage Material Suffix Chart (Steel / Brass)

Precision Grade & Special Treatment Suffix

Frequently Asked Questions About 329 Series Ultra-Thin Tapered Roller Bearings

1.Can I mix 329 series with other bearing types in one wholesale bulk order?

Mixed container loading is fully supported. You can combine different 329 series sizes, clearance grades, cage materials together with deep groove ball bearings, pillow block bearings, other tapered roller series (32000/33000) in one shipment to cut down ocean freight cost, flexible low minimum order quantity for mixed wholesale orders.

(Español: Aceptamos carga mixta en contenedor con otros tipos de rodamientos, MOQ flexible para pedidos mayoristas combinados.)

2.Do you offer OEM private label & custom export packaging service for 329 series tapered roller bearings?

Yes, full OEM customization available for all 329 series models. We provide neutral export cartons, custom color boxes, private brand logo printing, customized product labels. Brass cage, P5 precision and high-temperature treated special ultra-thin tapered roller bearings all support OEM bulk packaging orders.

(Español: Ofrecemos servicio OEM con empaques personalizados y logo propio para toda la serie 329 de rodamientos cónicos ultra delgados.)

3.Are your 329 series tapered roller bearings fully interchangeable with Timken / SKF / NTN original bearings?

All 329 series tapered roller bearings strictly comply with ISO international metric dimensional standards, 100% dimension interchangeable with mainstream global brand original tapered roller bearings. No mechanical modification required during auto transmission or compact machinery maintenance replacement, perfectly matching original assembly narrow installation space structure.

(Español: Todos nuestros rodamientos serie 329 cumplen norma ISO métrica, intercambiables 100% con Timken, SKF y NTN sin modificaciones mecánicas.)

4.What is your stock & production delivery lead time for 329 series bearings?

Standard 329 models (32904~32920) CN/C3 clearance with steel cages are permanently stocked in warehouse, ready to ship within 3-7 working days after deposit payment. Custom brass cage M suffix, P5 high precision and C4 oversized clearance 329 bearings require 15-28 days dedicated production lead time.

(Español: Modelos estándar en stock envío 3-7 días; modelos personalizados jaula latón o precisión P5 requieren 15-28 días de fabricación.)

5.Which suffix configuration is most recommended for automotive transmission & compact miniature gearbox working conditions?

For car transmission differential and small narrow gearboxes with continuous medium-speed running, our best-selling recommended combo is 329XX C3 standard steel cage bearing. The C3 enlarged clearance offsets thermal expansion generated by long-time vehicle driving and miniature equipment continuous operation, standard steel cage balances cost and durability for large-volume aftermarket auto parts wholesale replacement orders worldwide.

(Español: Para transmisiones automotrices y reductores pequeños compactos recomendamos rodamientos serie 329 C3 por holgura ampliada resistente al calor.)