Get bis for Rolling Bearings Accessories Dimensions for Adapter Sleeve Assemblies and Withdrawal Sleeves

Adapter and withdrawal sleeves are the tapered "go-betweens" that let a tapered-bore bearing be mounted on an ordinary plain (unstepped) shaft. An adapter sleeve assembly - a tapered sleeve with locknut and locking washer - is drawn into the bearing bore to clamp it onto the shaft; a withdrawal sleeve works in reverse, pressed between shaft and bearing and extracted to dismount it. Driving the sleeve controls the bearing's interference fit and residual internal clearance - get it wrong and even a perfect bearing runs hot and dies early.

IS 16605 (Part 1):2018, harmonised with ISO 2982-1:2013, standardises the dimensions of these sleeve assemblies and withdrawal sleeves so they interchange correctly with standard tapered-bore bearings worldwide. They ship in huge volumes alongside self-aligning ball and spherical roller bearings for plummer block installations - which is why they are covered under the Bearing Components and Accessories (Quality Control) Order, 2025 and now require the BIS ISI Mark under IS 16605 (Part 1):2018.

Sleeve buyers are bearing distributors, plummer-block OEMs and heavy-industry MRO stores - all of whom will insist on the ISI Mark once enforcement begins, since an uncertified sleeve in stock is a seizure risk. Standphill India handles the IS 16605 (Part 1) licence end-to-end - machining and thread-quality audit preparation, lab testing, ManakOnline filing - and pairs it naturally with the IS 16605 (Part 2) locknut licence, since most sleeve makers produce both.

BIS-recognized laboratories evaluate adapter sleeve assemblies and withdrawal sleeves against IS 16605 (Part 1):2018 for:

• Sleeve dimensions - bore, taper, outside diameter and length per IS 16605 (Part 1)
• Taper accuracy - correct taper angle and contact for controlled bearing drive-up
• Thread quality - sleeve thread form and fit for the locknut
• Assembly completeness - sleeve + locknut + locking washer as a matched assembly
• Material & hardness - steel grade and properties verification
• Surface finish - seating surfaces for reliable interference fit

Typical timeline: 4-6 months for Indian manufacturers; 8-14 months for foreign manufacturers (FMCS) - against a 6-month general QCO deadline, start immediately.

• BIS application form (Manakonline)
• Factory registration proof
• MSME / Udyam certificate
• Manufacturing process flow chart
• List of machinery & production equipment
• List of in-house testing equipment (with calibration)
• Raw material grade details & test certificates
• Product range & size designations
• Trademark / brand registration
• AIR appointment (foreign mfr.)
• BIS-recognized lab test report per IS 16605 (Part 1):2018

Standphill India is a global BIS consultancy that handles adapter sleeve assemblies and withdrawal sleeves certification end-to-end - from application and factory-audit preparation to lab testing and licence grant. We serve Indian manufacturers and overseas producers in China, Japan, Germany, the USA, and Korea with complete FMCS and Authorized Indian Representative services. BIS consultancy services all over the world.