NSK Deep Groove Ball Bearing TM305-A-12 CG20 25x62x17mm

NSK TM305-A-12 CG20 Deep Groove Ball Bearing – Opel Gearbox

The NSK TM305-A-12 CG20 is a deep groove ball bearing with C20 internal clearance, designed for Opel/Vauxhall gearbox applications. Open-type construction allows continuous gearbox oil lubrication. NSK is a leading Japanese bearing manufacturer trusted by automotive OEMs worldwide.

Inside Diameter: 25mm

Outside Diameter: 62mm

Width: 17mm

Part Number: TM305-A-12 CG20

OE / Cross References: 90523276 GM, 90.523.276 GM, 0708471 OPEL, 708471 OPEL, 90209004 GM, 90523276 OPEL, 090523276, 090 523 276

What does CG20 clearance mean?

CG20 denotes a specific internal clearance grade suited to gearbox operating conditions, allowing for heat expansion and oil-film thickness within the bearing.

What vehicles use the NSK TM305-A-12 CG20?

This bearing is used in Opel/Vauxhall gearboxes. Cross-reference OE numbers 90523276 (GM/Opel) or 708471 (Opel) to confirm fitment.

Is this an open or sealed bearing?

This is an open bearing without seals or shields, designed to be lubricated by gearbox oil.

What is a deep groove ball bearing?

Deep groove ball bearings are the most versatile bearing type, handling radial loads and moderate axial loads in both directions. They are the most common bearing found in gearboxes.

How do I confirm this is the correct bearing?

Match OE number 90523276 or dimensions: bore 25mm, OD 62mm, width 17mm. Send your UK registration or VIN if you need assistance.

Why Choose Eco Torque?

As specialists in gearbox rebuilds and repairs, Eco Torque takes pride in offering genuine gearbox parts, high-quality aftermarket alternatives and competitive pricing.

Need Help Finding the Right Part?

If you are unsure whether this part is compatible with your vehicle, send us your UK registration number or VIN and we will help you find the correct part.

Reference Number: ET2108