BB1-0923 25x62x17mm Transmission Bearings

Product Overview

The BB1-0923 is a single-row deep groove ball bearing with a 25 mm bore × 62 mm outside diameter × 17 mm width, produced under the SKF BB1 series of special automotive bearings. The “BB1” prefix in SKF nomenclature denotes a bearing whose boundary dimensions or internal design deviate from standard ISO dimension series to suit a specific vehicle application. In the SKF automotive bearing cross-reference tables, the BB1-0923 is consistently listed as 25 × 62 × 17 mm, alongside the closely related BB1-0922 and BB1-0924, which share the same envelope.

Critical application clarification: gearbox / transmission bearing, not a generic automotive part

The supplier form lists the application as the generic “Auto transmission part.” Catalogue and cross-reference data point to a more specific primary use:

• Manual and CVT gearbox intermediate shaft bearing: The related BB1-0922 is explicitly documented as being matched for “auto manual & CVT gearbox intermediate shafts, tractor transmission assemblies, light commercial vehicle reducers, and medium-speed agricultural machinery transmission parts” . Because the BB1-0923 shares the same 25 × 62 × 17 mm envelope and the same SKF BB1 special-design family, this application description is directly applicable.

• SKF special automotive bearing: The BB1-0923 is listed in SKF automotive bearing supply tables alongside other transmission and driveline bearings, confirming its position as a gearbox service bearing rather than a wheel-end or differential carrier bearing.

The Application field should be refined from the generic “Auto transmission part” to “Automotive gearbox / transmission intermediate shaft bearing” , with the SKF BB1-0923 brand reference carried prominently in the description.

Weight: ≈ 0.21–0.23 kg is the dimensionally coherent reference range

The supplier form leaves the Weight field blank. No SKF catalogue page for the BB1-0923 itself publishes a weight in the accessible sources. However, the standard 6305-series bearing of identical 25 × 62 × 17 mm dimensions is consistently listed at 0.21–0.23 kg across multiple independent catalogues, including 0.225 kg for SKF BB1 3160 B (25 × 62 × 17 mm) and 0.224–0.23 kg for sealed 6305 variants. Because the BB1-0923 shares the same boundary envelope and the SKF BB1 designation indicates a modified internal design rather than a different physical size, the ≈ 0.21–0.23 kg range is the most reliable weight reference for the listing.

Seal and cage confirmation: 2RS and nylon cage are consistent with the BB1 family, but should be verified

The supplier form specifies 2RS (rubber seals) and a Nylon cage. Both specifications are consistent with the broader SKF BB1 automotive bearing family: BB1-series automotive bearings are commonly supplied with 2RS rubber seals and nylon cages, and product listings for related BB1 models (such as BB1-3251 C and BB1-3272) confirm Nylon cage + 2RS + C3 clearance as a standard configuration. However, the base BB1-0923 designation does not carry a suffix in the SKF cross-reference tables, which would typically indicate an open, unsealed bearing. The 2RS specification in the supplier form may reflect a sealed production variant for the automotive aftermarket. The Seals Type, Seal Material, Cage Type, and Cage Material fields should be confirmed against the physical stock before publishing them as definitive.

Load ratings and speed limits: not published for this designation

No accessible public catalogue publishes Cr, C0r, grease speed, or oil speed for the BB1-0923 as a dedicated specification. The SKF BB1 series documentation describes the naming convention and boundary-dimension deviation but does not provide a per-part load-rating table for this number. These fields should remain blank or be marked “Consult supplier” rather than estimated from a standard 6305-series bearing, because the BB1 internal modification may alter the contact geometry and load path relative to the standard deep groove bearing of the same envelope.

Key Specifications

Performance Features

• SKF BB1 special automotive design: The BB1 prefix indicates a bearing whose boundary dimensions or internal design deviate from standard ISO series, allowing it to fit a specific gearbox intermediate shaft position where a standard 6305-series bearing would not provide the correct shoulder, radius, or internal clearance.

• Deep groove geometry for combined loads: The single-row deep groove raceways carry radial loads and accommodate moderate axial loads in both directions, matching the load spectrum of a transmission intermediate shaft under gear mesh forces.

• GCr15 chrome steel construction: Rings and balls are through-hardened for rolling-contact fatigue resistance under the cyclic loading of automotive gearbox service.

• 2RS rubber seals(per supplier form): If the stock is the sealed variant, the contact-type rubber seals retain the grease charge and exclude contaminants — a configuration suited to a transmission position exposed to oil splash and debris.

• Nylon cage(per supplier form): The nylon cage offers low friction and noise damping, which is advantageous in the oil-lubricated, high-speed environment of a gearbox intermediate shaft.

• Open configuration(if applicable): If the stock is the open base designation, the bearing is lubricated by the gearbox oil circuit, consistent with the wet-sump lubrication strategy of a manual or automatic transmission.

Application

The BB1-0923 is catalogued as an SKF automotive bearing for gearbox and transmission applications. Based on the documented application range of the BB1-0922 and the shared 25 × 62 × 17 mm envelope, the BB1-0923 is suited to automobile manual and CVT gearbox intermediate shafts, tractor transmission assemblies, light commercial vehicle reducers, and medium-speed agricultural machinery transmission parts. In service, a bearing of this type supports an intermediate or auxiliary shaft under the radial and moderate axial loads generated by the gear train. The 25 × 62 × 17 mm envelope and the SKF BB1 special design make it a direct-fit replacement for the original gearbox bearing position it serves.

Ordering & Logistics

• Stock: 92 pcs

• Minimum order: 1 pc

• FOB price: US$10 – US$50 per piece

• Payment: PayPal / Western Union / T/T(100% in advance)

• Delivery: 3–4 workdays after payment

• Shipping: DHL / FedEx / UPS / TNT

• Ports: Shanghai / Guangzhou

• Packing: Standard export packing

• Brand: As required(authorized brands only)

• Country of origin: China

Share this product to:     Let more people see your product